Most Recent Product Questions
  1. Rated: 3
    9/23/2020 11:08 AM Baader UBVRI Photometric Johnson/Bessel V-Filter (4mm Glass)
    What is clearance required for insertion into a filter drawer - eg the altair astro filter drawer

    Answer rated: 0
    The 1.25" filters come in a Low-Profile filter cell, which is 6mm high (plus the filter thread).

    The filters glass is 4mm thick.
    Answer by: Baader Web Team (Admin) on Sep 23, 2020 4:45:00 PM
  2. Rated: 4
    9/23/2020 9:32 AM Baader MaxBright® II Binoviewer with case
    I am considering a purchase of binoviewer to use with my 305/1500 collapsible SkyWatcher dob. I would like to use ADC for planetary viewing, hence I need at minimum a 2x barlow/f.extender. my question is: could the 2.6 GPC be placed before ADC, i.e. can additional 55mm of lightpath be introduced between the GPC and binoviewer (OTA -> 2.6 GPC -> ADC -> bino)? Focusing distance is not much of an issue, since mirror can easily be moved. I am more interested in understanding how GPC will behave - is it sort of telecentric or 2.6x effect with distance becomes 3x or more.

    Answer rated: -1
    The glasspath corrector behaves more like a barlow lens than like a telecentric - it's best if you think of it as a barlow lens which also corrects the colour aberations of the prisms.
    Answer by: Baader Web Team (Admin) on Sep 23, 2020 12:15:00 PM
  3. Rated: -1
    9/21/2020 9:58 PM Baader 10mm Hyperion 68° Modular Eyepiece
    will this lens work with a Celestron starsense explorer dx 130 or a zhumell Z8

    Answer rated: 0
    Yes, there should be no problem.
    Answer by: Baader Web Team (Admin) on Sep 22, 2020 12:14:00 PM
  4. Rated: 0
    9/21/2020 8:11 AM Baader UV/IR Cut / L-Filter
    Why do you say the filter is only good for 100mm+? I have a 97mm Brandon apochromat. Will it work with it?

    Answer rated: 0
    I can't find where we state that it is only for larger apertures, but there will be no problem using it with smaller telescopes, as long as chosse a matching size.
    Answer by: Baader Web Team (Admin) on Sep 21, 2020 2:48:00 PM
  5. Rated: 0
    9/19/2020 11:18 AM Baader Micro Guide eyepiece with Log-Pot illuminator
    What is the width of the field stop diameter?
    What is the width of the apparent field of view?
    Thank you for the answers.

    Answer rated: 1
    The field of view is 45°.
    We do not have the diameter of the field stop available at the moment, but it is an orthoscopic eyepiece, if this helps.
    Answer by: Baader Web Team (Admin) on Sep 21, 2020 3:11:00 PM
  6. Rated: 0
    9/18/2020 12:47 PM Baader FlipMirror II Star Diagonal
    I would like to use your "flip mirror" as a ligth sources selector with my leitz microscope (LED cool ligth or halogen one); to do this I would like to replace the adapter rings with Leitz ones on two sides of the unit; the third one will be used for straigth connection to microscope inlet (by a locked coupling ring).
    Do you think it is feasible? may you send me a tech drawing with ring holes on the three sides?
    I thank you in advance for your kind answer.
    Best regards

    Answer rated: -1
    We are sure that our FlipMirror II can serve your intended purpose. However we ask you kindly for your understanding that we can't give out more detailed drawings then what has been published on our website already. Please check out the product images which inlude also a drawing. All threads are also explained in detail in the instruction manual.
    Answer by: Baader Web Team (Admin) on Sep 21, 2020 8:53:00 AM
  7. Rated: 2
    9/17/2020 10:01 AM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    Can I attach the T-Ring to a Takahashi FS-60CB with the Multiflattener 1.04x which has a M52x0.75 thread and requires a backfocus of 87.5mm? Which parts would I need?
    thanks

    Answer rated: 0
    The Nikon Z-bayonet has got a flange distance of 16mm, the Wide T-ring adds 8.3mm. So you have 87,5-24,3=63,2mm remaining for adapters. This should be no problem - but we do not have an adapter from M52 to a more common thread.
    Answer by: Baader Web Team (Admin) on Sep 17, 2020 12:53:00 PM
  8. Rated: -1
    9/16/2020 5:19 PM StarAid Revolution Standalone Autoguiding
    Is the StarAid app available for iPhones or iPads? I cannot find it anywhere.

    Answer rated: -1
    It is a web application on the star aid. You just need to connect your device to the StarAid's WiFi access point, then you can use any modern browser, no matter if on smartphone, tablet or laptop/computer.
    Answer by: Baader Web Team (Admin) on Sep 17, 2020 9:13:00 AM
  9. Rated: 1
    9/13/2020 2:57 AM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Hello,
    What bandwidth is recommended for H-alpha imaging at f/15?

    Answer rated: 2
    We recommend 7nm so that exposure times will be acceptable
    Answer by: Baader Web Team (Admin) on Sep 14, 2020 11:58:00 AM
  10. Rated: 0
    9/11/2020 5:18 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    I want to use the Telecompressor for visual and i want to know how it need to be use with :

    Celestron C11 (no edge)
    2956233 Baader 2" ClickLock SCL (3.3")
    2956100 Baader 2" ClickLock Diagonal Mirror
    2956214 Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B) with 31.5 Eyepieces

    In the manual it seem need :

    2408150 Baader 2" nosepiece to T-2 / M48 (T-2 part #16)
    2958242 Baader Expansion Ring 2"a/T-2i with 1mm optical path length (T-2 part #28)

    But it's not clear. Can you explain ?

    Answer rated: 0
    Yes, that is the recommended installation:
    Remove the 2" nosepiece from the star diagonal, then you have access to an SC-thread
    Insert T-2 Part #: 28 Baader Expansion Ring 2"a/T-2i with 1mm optical path length (T-2 part #28) # 2958242
    Place the collar aof the Alan Gee on the T-2-thread
    Secure it with 2408150 Baader 2" nosepiece to T-2 / M48 (T-2 part #16)
    Then you can insert the star diagonal as usual into the eyepiece holder of the telescope.

    You can change the distance to the eyepiece and by this the reducing factor by adding/removing the included spacer tubes or additional T-2 extensions.
    Answer by: Baader Web Team (Admin) on Sep 14, 2020 1:56:00 PM
  11. Rated: -1
    9/10/2020 10:24 AM 9 mm Morpheus® 76° widefield eyepiece
    On the Morpheus eyepiece is the focal plane at the 2” field stop or the 1 1/4” field stop?

    Answer rated: 0
    Please take a look at the technical data sheet at https://www.baader-planetarium.com/de/downloads/dl/file/id/223/product/2851/morpheus_76_eyepiece_series_technical_data.pdf
    Here, you can find the reference plane (the bottom of the 2" nose piece) and the field stop displacement. For most eyepieces, it is equal to the reference plane. Only for the 17.5mm it is displaced by 2.5mm.
    Answer by: Baader Web Team (Admin) on Sep 10, 2020 10:31:00 AM
  12. Rated: -2
    9/9/2020 2:01 PM Carl Zeiss 1¼" Abbe Barlow lens 2x
    Dear Sir,
    I use a Baader T-2 prism diagonal with a 1,25" clicklock eyepiece adapter.If I insert the Zeiss Abbe barlow lens into this clicklock will this not hit the prism inside the diagonal? I ask because the 1.25" sleve of this barlow seems much longer than the 1.25" clicklock eyepiece adapter I use??
    Thank you very much!
    Best Regards

    Answer rated: 0
    It is indeed too long - the lens is about 12mm longer than the top of the T-thread.
    If you want to use it with a 1.25"-prism, you could use
    Baader T-2 / 15 mm Extension Tube (T-2 part #25A) # 1508154
    Answer by: Baader Web Team (Admin) on Sep 9, 2020 4:15:00 PM
  13. Rated: 0
    9/8/2020 12:07 AM Bundle: Hyperion Universal Zoom Mark IV with Hyperion-Barlow 2.25x (8-24mm / 3.6-10.7mm)
    Its compatible with fast telescopes?

    Answer rated: 0
    It works with all telescopes with 1.25" and 2" eyepiece holder. For fast telescopes, we recommend the use of a coma corrector like the MPCC.
    Answer by: Baader Web Team (Admin) on Sep 8, 2020 1:43:00 PM
  14. Rated: 0
    9/6/2020 12:14 AM Baader M48 Spacer Ring for MPCC III / Protective EOS T-Ring
    Do you have a similar product that goes from M48 to M48 with 2 mm length? I need to use it when I take off the 2 mm from the Baader MPCC M42 choke. Cheers!

    Answer rated: 0
    We do have M48 spacer rings which ca be inserted between to parts with M48-threads. But I woudn't recommend stacking two 1mm-rings if the thread is too short.
    Answer by: Baader Web Team (Admin) on Sep 7, 2020 11:17:00 AM
  15. Rated: 1
    9/3/2020 5:29 PM Baader 2" Nosepiece with 2" filter thread
    I have bought the Steeltrack for SC (Celestron Edge HD). Can I screw this nosepiece to the telescope side of the Steeltrack and by doing so use the Steeltrack on a scope with a 2" connection??? I am aware that there could be an issue with back-focus distance.

    Answer rated: -1
    A little unusual but of course you can use the diamond steeltrack with this nose piece. Only thing is that I´d prefer this nose piece instead:
    https://www.baader-planetarium.com/en/baader-2%22-safety-kerf-nosepiece-with-2%22-filter-thread.html
    The savety groove can cause a tilt - depends on the clamp. The nose piece with kerfs is without this trouble.
    Answer by: Baader Web Team (Admin) on Sep 4, 2020 10:43:00 AM
  16. Rated: 4
    9/3/2020 5:49 AM Baader FCCT (Filter Changer Camera Tilter)
    Will there be filter slides available for mounted 1.25" and 2" filters such as the f/2 highspeed filters?

    Answer rated: -1
    No, there is not enough backfocus available for a filter cell and a filter drawer.
    Answer by: Baader Web Team (Admin) on Sep 3, 2020 8:13:00 AM
  17. Rated: -3
    9/2/2020 12:44 AM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    I have a BDS-SC/HD which I am using on a Meade LX-85 6" ACF with a Pentax KP camera attached via a T2 adapter. It works very well, thank you.

    My question is, will your UHC-S / L-Booster-Filter 2" fit internally in the BDS-SC/HD? If not, do you have another method to use the UHC-S filter with the setup mentioned above?

    Answer rated: 0
    To avoid obstructions in the lightpath by a 2" filter, which is smaller than the inner diameter of the focuser tube, there is no option to mount such a filter inside of the focuser.

    But you have two options:
    - The Baader 2" nosepiece to T-2 / M48 (T-2 part #16) # 2408150 has got a thread for 2" filters
    - The UFC filter drawer https://www.baader-planetarium.com/en/filters/universal-filter-changer.html is also compatible with the Diamond SteelTrack focuser. You can mount e.g. Diamond Steeltrack® M68 Adapter # 2957206 or Diamond Steeltrack® M48 Adapter # 2957204 at the SteelTrack and then configure a UFC filter drawer with M68 (for maximum aperture) or M48 connection on the telescope side and a T-2-thread on the camera side - or a wider connection for M48 or larger and one of our Wide T-rings to reduce vignetting of full-frame cameras as much as possible. A T-thread is smaller than a fullframe sensor, so that a Wide T-Ring is helpful with larger sensors.

    Answer by: Baader Web Team (Admin) on Sep 2, 2020 10:00:00 AM
  18. Rated: -2
    8/31/2020 7:39 PM Fluorite Flatfield Converter (FFC) / 3x-8x
    I have a zeiss APQ 150/1200. can I use this together with Zeiss binocular?

    Answer rated: -1
    This should work - but please remember that a binoviewer has got an optical length of about 11cm, which gives you a minimum factor of ca. 3.3x if the FFC is mounted directly in front of the binoviewer.
    This turns your telescope into a ca. 150/4000 f/26, and a 32mm eyepiece will give you a magnification of 125x.

    Please also take a look at the chart https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/d/1/fluorit-flatfield-converter-ffc-3x-8x-weltbeste-barlowlinse-c61.jpg which shows you how much the focus point changes.
    Answer by: Baader Web Team (Admin) on Sep 1, 2020 2:07:00 PM
  19. Rated: -2
    8/31/2020 4:27 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    I need help choosing between # 2957210 and # 2957230

    Answer rated: -1
    It depends on the telescope you're using. BDS-RT #2957210 is for refractors, BDS-NT #2957230 is for Newtonians.
    Answer by: Baader Web Team (Admin) on Sep 1, 2020 9:23:00 AM
  20. Rated: 0
    8/30/2020 6:36 AM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    I have a Celestron Edge HD 11" SCT. Is the #2956257 S57-ClickLock what I need to convert the included 2" mirror diagonal to a clicklock adapter? Thanks!

    Answer rated: -1
    We are not sure which specific star diagonal Celestron included with your telescope, but if the eyepiece clamp can be removed, it is probably with a thread. The S52 is a ring dovetail with 52mm diameter.

    Chances are good that a SC-thread is used. If you can remove the eyepiece clamp from the star diagonal and screw it onto the 2"/SC-thread on the back of your telescope, then you can use Baader 2" ClickLock SC/HD (2") clamp (C5" - C9¼") #2956220. This clamp has got a female thread; If you need a ClickLock with a male SC-thread, you can convert it with Baader 2"/2" Inverter Ring with 48mm filter thread # 1508020.

    Otherwise, we'd need to ask you to measure the thread of your specific star diagonal as described here: https://www.baader-planetarium.com/en/blog/clicklock-clamp-for-your-telescope/
    Answer by: Baader Web Team (Admin) on Sep 2, 2020 10:18:00 AM
  21. Rated: 1
    8/29/2020 6:19 PM Baader T-Ring Canon EF (EOS) to T-2
    Is it possible to replace the 42mm thread with the 48mm spacer # 2458405, so I could use this correctly with the MPCC? All your recommandations are about using the protective Canon ring but I have no real need for it since I don't use much filters. There is a question similar to mine but as an answer you refer to a graph of the MPCC which doesn't give me the answer I need... Thanks for your help!

    Answer rated: -1
    Unfortunately, the spacer ring has got a diameter of 52mm. The inset of our Canon ring has got a diameter of only 50mm.
    Answer by: Baader Web Team (Admin) on Sep 2, 2020 1:40:00 PM
  22. Rated: 0
    8/29/2020 9:53 AM Baader Z(AP)-Dove tail bar 470mm
    Will the above product fit on to my Carl Zeiss Jena equatorial mount which currently holds a C63/830 Telemator Telescope. I am looking to remove the telescope (temporarily) to enable the use of a Canon F1 camera and 600mm lens, in conjunction with the Telemator drive system.

    Answer rated: 0
    Yes - this will work
    Answer by: Baader Web Team (Admin) on Aug 31, 2020 11:51:00 AM
  23. Rated: 1
    8/28/2020 1:38 PM Baader 2" ClickLock Diagonal Mirror
    I have a Celestron CPC 925. I have just bought the Baader 2 inch Clicklock Dialectric diagonal. Your user guide says that if I unscrew the Kerf nosepiece the diagonal has two more useful connections: An SCT thread and a S58 dovetail. However, when I try to screw the diagonal body onto my SCT it will only screw on half a turn. The threads seem to be diffferent. what am I doing wrong? How do I access the SCT thread on the diagonal?

    Answer rated: 1
    You might find the manual for our star diagonals interesting, which we have at https://www.baader-planetarium.com/en/downloads/dl/file/id/1617/product/1687/baader_star_diagonals_t_2_and_2.pdf

    The SC-thread should be easily accessible by unscrewing the nosepiece. Then you should have this part in your hands: https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/2-inch-sc-thread/baader-2%22-safety-kerf-nosepiece-with-2%22-filter-thread.html

    There are sometimes slight tolerances in the threads, so that they might not fit perfectly. Please take a look at the thread of the telescope, if there is some dirt or black colour which might block the thread. You can also try to turn the star diagonal around by removing the ClickLock as described in the manual https://www.baader-planetarium.com/en/downloads/dl/file/id/1378/product/1687/user_manual_for_baader_clicklock_diagonal_mirror_with_2_and_m68_connection.pdf on page 7.The thread is the same on both seides, but maybe one side works better.
    Answer by: Baader Web Team (Admin) on Sep 2, 2020 9:09:00 AM
  24. Rated: -1
    8/26/2020 4:15 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Can this be used on a Zeiss APQ 150/1200? (without any modification, of course). Thanks

    Answer rated: -3
    This is possible without modification of the Zeiss telescope. But you will need an special manufactured adaptor to attach the focuser to the Zeiss telescope. This adapter costs appx. 125 EUR net plus shipping
    Answer by: Baader Web Team (Admin) on Sep 1, 2020 9:18:00 AM
  25. Rated: -1
    8/26/2020 2:58 AM Baader double-balancing plate-set with 3" plate, V-clamp and Stronghold
    Whats the max load allowed on the plate on a side by side mounting ??

    Answer rated: 1
    We would recommend a load of approximately 20kg max. ~7kg on the stronghold and ~13kg on the V-clamp
    Answer by: Baader Web Team (Admin) on Sep 2, 2020 2:04:00 PM
  26. Rated: 4
    8/25/2020 10:16 AM Fluorite Flatfield Converter (FFC) / 3x-8x
    I just bought a Flat Field converter, and I'm trying to understand the drawing, about focusing distances.
    I understood that for magnifying 4 times (as exemple), I have to set camera, or his schip, at 150mm from the FFC. this part is ok.
    but my question is for the other side. what does that mean "focus of telescope without FFC? the different distances given in the drawings, are they distance I have to put in front of the FFC? between the telescope and the FFC?
    Thanks for your help.

    Answer rated: 2
    The focus of telescope without FFC is the place where the focus of the telescope is without the FFC. Just like a any other Barlow lens, the focus point of thetelescope moves, when you insert a Balrow (or a reducer). If you can reach focus with the FFC, you can ignore this point; if you don't and have to do mechanical changes to the telescope, this information is important.
    Answer by: Baader Web Team (Admin) on Aug 25, 2020 12:02:00 PM
  27. Rated: 0
    8/23/2020 7:37 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I looked through the Q&As and found that back in 2017 someone asked if this eyepiece would work with the Pentax 65PF ED spotting scope. The company rep answer was it should since it was the standard 1.25”. However a user posted that it would not focus at infinity on several settings. Is that correct or will it work with the Pentax PF 65 ED ii? Thanks.

    Answer rated: -1
    The Hyperion Zoom Mark IV is designed in such a way, that the focus point is even more spotting-scope-friendly that with most 1.25" eyepieces, when it is used with the the included spotting-scope adapter/base plate. So, we would be surprised if if didn't work with spotting scopes which support standard 1.25" eyepieces, but we couldn't test it ourselves with this particular model yet.
    Answer by: Baader Web Team (Admin) on Aug 25, 2020 12:27:00 PM
  28. Rated: 0
    8/22/2020 12:36 AM 1.5mm Strip-Shims (Spacer) for BDS-NT
    Hi, 2 questions:
    1. How many shims do i need to fit a SW 150PDS (6")?
    2. The open space underneath the VersaBase - wouldnt light sneak through where the drawtube is?

    Answer rated: 0
    Please take a look at the drawing on page 2 of this PDF: https://www.baader-planetarium.com/de/downloads/dl/file/id/30/product/2859/bds_nt_dimensions_technical_drawing.pdf

    As tube diameters are not standardised, we can't answer this without knowing the diameter of the telescope tube.

    Light intrusion is no problem, as the focuser usually is deeper inside of the telescope than the base plate.
    Answer by: Baader Web Team (Admin) on Aug 25, 2020 1:26:00 PM
  29. Rated: 2
    8/21/2020 8:54 AM Baader double-balancing plate-set with 3" plate, V-clamp and Stronghold
    Great to know that it can be fittted on a tripod.Can a camera plate like Manfrotto with 3/8 sliding screw be fitted on the center of the plate with the anti rotation lug in one of the holes.? That way the balancing plate can be mounted of a photo video mount for complete movement with two scopes mounted

    Answer rated: 2
    Probably not without some work, but we do not know the measurements of Manfrotto.
    But you may have to remove at least the pin from the plate.
    Answer by: Baader Web Team (Admin) on Sep 9, 2020 1:56:00 PM
  30. Rated: -2
    8/20/2020 8:55 AM Baader 24mm Hyperion 68° Eyepiece - Non Variable
    I am looking at the Hyperion range eyepieces. Will these be compatible for the Orion 10" f/3.9 Newtonian Astrograph Reflector Telescope?

    Answer rated: 0
    You can use them on any telescope with 1.25" or 2" eyepiece clamp. However, on such a fast telescope, we'd highly recommend the use of a coma corrector like the MPCC in its version for visual and photographic use: https://www.baader-planetarium.com/en/2%22-mpcc-mark-iii-(multi-purpose-coma-corrector-for-newtons).html#574=926 Otherwise, the eyepiece will show the coma of the telescope.

    In the manual of the MPCC in the download section of its product site, we describe the recommended distances for eyepieces.
    Answer by: Baader Web Team (Admin) on Aug 20, 2020 9:03:00 AM
  31. Rated: -1
    8/19/2020 12:56 PM Baader 2"/90° Astro Amici-Prism with BBHS ® coating
    I want to be sure that the Baader 2"/90° Astro Amici-Prism with BBHS ® coating is compatible with all the eyepieces : I have a set of televue ethos and I want to check that the ethos will not bottom the prism inside.

    Answer rated: 2
    Eyepieces with 2" barrels of up to ca. 45mm length can be used without problems. If an additional 1.25" nosepiece is in front of the 2" nosepiece, you can use any 2"/1.25" reducer to be safe, or use our Pushfix #2408151 to expand the 1.25" barrel permanently to 2".
    Answer by: Baader Web Team (Admin) on Aug 19, 2020 1:29:00 PM
  32. Rated: 1
    8/18/2020 10:11 AM Baader UV/IR Cut / L-Filter
    Can the giant option (101x143x3mm) be used with typical 4x5.65" matte box?

    Answer rated: 3
    Yes this works!
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 3:24:00 PM
  33. Rated: 0
    8/18/2020 8:35 AM Baader UFC (Universal Filter Changer)
    Is this slider compatible with baader highspeed 2" mounted filters? Can`t find exact height figure for them.

    Also, I have 6,5 backfocus camera, what additional spacers would I need for slider with RASA 8? And is use of dedicated Adapter is obligatory in this case, or T2 female part on telescope side will do the job?

    Answer rated: 1
    The highspeed-filters have the Low-Profile Filter Cell with 6mm height, as most of our current filters, and fit into the UFC filter chamber.

    For the RASA 8, you need
    - Baader UFC S70 RASA 8" Telescope-Adapter (optical height: 1.4 mm) # 2459136
    - Baader UFC Base (Filter Chamber) telescope-sided S70 dovetail receptor (optical height: 13 mm) # 2459110
    - Baader UFC T-2 (m) Camera-Adapter (optical height: 2 mm) # 2459115
    The camera adapter depends on the camera you want to use. If T-2 is wide enough so that it doesn't cause vignetting, you can use T-2 without problems.

    The length of this setup is 16.4mm, so the remaining backfocus of the RASA 8 is 12.6mm. To bridge this gap, you can combine several adapters, e.g.
    - Baader UFC S70 Extension 5mm # 2459141
    - Baader T-2 / 7.5 mm Extension Tube (T-2 part #25C) # 1508155

    This gives you 12.5mm and is within the tolerances of the RASA 8. We also have T-2 Fine-Adjustment rings (0,3 / 0,5 / 1 mm) - Aluminium #2457910 (also available seperately)
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 10:24:00 AM
  34. Rated: 1
    8/17/2020 8:25 AM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I have a Nikon Z7, what do i need to attach this to a Celestron Edge HD 9.25

    Answer rated: -4
    We recommend
    - Celestron 48mm T-Adapter for EdgeHD 9.25”, 11”, and 14”, Item #: 93622
    - Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52 # 2408335
    - Baader Reducing piece S52 / M48 # 2958552
    The Celestron 48mm adapter has got a backfocus of 55mm; our Wide T-ring is 8.3mm thick, and the Nikon has got a flange distance of 16 mm. So, you still need an M48-extension of 30.7mm. Currently, we have got M48 Fine-Adjustment rings seperately or as set (0,3 / 0,5 / 1 mm) - # 2457915, but you'd need to get a 30mm-extension from another manufacturer.

    We could either offer you a T-2-adaptation (but there would be vignetting with a full frame sensor, so it is not recommended), or use the space for our UFC filter changer. It would fit in this gap with M48-connections, but it is of course more expensive than a simple extension tube.
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 10:50:00 AM
  35. Rated: 1
    8/16/2020 10:15 PM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Can you share actual transmission characteristics? Does this filter allows NII wavelength to pass?

    Answer rated: -2
    This filter is fully blocked from 390 to 1150 nm. It will not pass N II.
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 12:34:00 PM
  36. Rated: 2
    8/16/2020 1:48 PM Baader MaxBright® II Binoviewer with case
    I have a Bresser AR127L telescope, I just went ahead a minute again and bought a MaxBright II binoviewer without accessories. So from a newbie question here, what other accessories and eye piece do I need to set it up on my Bresser telescope. Can I use a 2” eye piece as well instead of the 1,25”?. Sorry, am clueless on Binoviewer.

    Answer rated: 1
    Please take a look at the manual of the MaxBright binoviewer, where most of your questions are answered. It is in the download section of the proct website. Take a special look at the section about how to determine the back focus of your telescope, which tells you if you need a glasspath corrector to reach focus, anf if you can use your existing star diagonal or if it is too long. This determines if you need a 1.25" T-2 nosepiece, or if you need a very short star diagonal with T-2-threads instead of a long eyepiece clamp.

    You can only use 1.25" eyepieces, although our Hyperion Aspheric 2" eyepieces come with adapter so that they can be used as 1.25" eyepieces - if there is sufficient back focus.

    We always recommend to measure your available backfocus first (with your existing star diagonal, but if possible also without it), so that the necessay adaption can be found - often, there are cheaper sets availableht an if you have to buy every item seperately.
    Answer by: Baader Web Team (Admin) on Aug 17, 2020 2:05:00 PM
  37. Rated: -1
    8/15/2020 9:51 PM Baader 2"/90° Astro Amici-Prism with BBHS ® coating
    I have treated myself to this Baader Amici Prism!! However - I am now concerned with reading reports from online astronomy forums regarding this prism sometimes causing a 'roofline diffraction spike' in the eyepiece image. Will this happen to me?? I will only use the prism for visual astronomy, not photography. Focal Ratio of my telescope = F10, focal length = 2800 mm. Celestron CPC1100. Most of my viewing will be in the 100X to 250X magnification range. Thanks for any reassurance you can give me! PS I love your products!!

    Answer rated: 1
    This can happen sometimes - "sometimes" is, when you observe a very bright object and place it directly onto the roof edge. If you move it a little bit of center, it is no problem - please try it out!
    This is typical for all Amici (rrof) prisms, similar to the spikes of a Newtonian telescope, but much weaker.
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 11:13:00 AM
  38. Rated: 4
    8/15/2020 8:22 AM Baader Stronghold Tangent Assembly
    The clamp provided on top is for vixen universal plate correct also.called EQ? I believe with the top two peice clamp removed the Baader vario with the supplied base plate can be directly attached to the tangent. Please confirm..

    Answer rated: -2
    Yes, it is for EQ(V) style prism clamps - that is Vixen-style, which is also used by the smaller SkyWatcher EQ mounts.
    Answer by: Baader Web Team (Admin) on Aug 18, 2020 11:09:00 AM
  39. Rated: 3
    8/12/2020 8:30 PM Hyperion Zoom 2.25x Barlow lens
    I tried to use this Barlow attached to the Hyperion zoom Mark IV but I found that I could not bring planets into focus. My telescope is a Televue Pronto of 480 mm. Is there some other attachment that I need to bring planets into focus?

    Answer rated: -1
    It depends on why you don´t come into focus. If you need to focus further out, you can use for example 2" extension https://www.baader-planetarium.com/en/2%22-deluxe-eyepiece-clamp-for-sc-telescopes-(available-with-filter-holder--extension).html
    If you need to go further in, you can only replace the 2" Diagonal that you most likely use, with an 1,25" version to have a shorter lightpath
    Answer by: Baader Web Team (Admin) on Aug 13, 2020 9:09:00 AM
  40. Rated: -1
    8/10/2020 6:03 AM Classic Ortho 18mm, 1¼" Eyepiece (HT-MC)
    Can this be adapted to Celestron Ultima 80 spotting scope?

    Answer rated: 0
    This can be done as described in this German-language PDF: https://www.celestron.de/ce_de/downloads/dl/file/id/938/product/3323/ultima_und_classic_okulare.pdf

    You need to remove the 1.25" nosepiece and screw the eyepiece into Baader 2" NX4 (C90) / ETX Expanding Ring # 2958500A which fits directly onto the thread of the Ultima. This works for the three Classic Ortho eyepieces and for most other eyepieces where you can remove the nosepiece and access a male 1.25" filter thread (i.e., where you can turn the nosepiece around).

    It is uncomfortable with the short 6mm Classic Ortho, but it works.
    Answer by: Baader Web Team (Admin) on Aug 17, 2020 1:24:00 PM
  41. Rated: 0
    8/10/2020 5:33 AM Baader 10mm Hyperion 68° Modular Eyepiece
    Can the Baader 10mm Hyperion 68° Modular Eyepiece be adapted to a Celestron Ultima 80 spotting scope?

    Answer rated: 0
    No, the Ultima spotting scopes don't support eyepieces with 1.25" nosepiece. Only the Hyperion 8-24mm Zoom can be adapted - there, you can remove the nosepiece and screw it into the Ultima spotting scope. This is not possible with fixed-focus Hyperion eyepieces.
    Answer by: Baader Web Team (Admin) on Aug 17, 2020 1:21:00 PM
  42. Rated: 0
    8/4/2020 1:33 AM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    I have a Explorer Scientific ED127 with 2" focuser.I am looking for a Baader Click-Lock adapter. Which one should i order?

    Answer rated: -1
    You should need the 2" ClickLock M54i x 0,75 (Bresser / Omegon / Explore Scientific) #2956253
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps/baader-2%22-clicklock-eyepiece-clamps.html#574=1224
    Answer by: Baader Web Team (Admin) on Aug 4, 2020 9:06:00 AM
  43. Rated: 5
    8/3/2020 2:36 PM Baader IR-Pass Filter (685 nm)
    Do you have a transmission diagram for your ir-pass filter. I found one from one of your suppliers but do not know if this is relevant or there have been changes. Above all, I want to ensure the damping up to 300nm.

    https://astro.astrosweden.se/sv/articles/2.232.241/baader-planetarium-baader-planetarium-ir-passfilter-685-nm

    Answer rated: 2
    We don't have a transmission diagram for this filter ourselves currently. The base of the filter is a Schott-equivalent absoption glass RG 630 (you can look up its properties in the Schott catalogue). For this reason it is assured that blocking is effective down to 300 nm.
    Answer by: Baader Web Team (Admin) on Aug 4, 2020 3:22:00 PM
  44. Rated: 0
    8/2/2020 10:49 PM Universal Alan Gee II - Telecompressor (UAG II)
    I am interested in purchasing the Universal Alan Gee and the MaxBright II Binoviewer for my Celestron 9.25 evolution, which has a 1.25" star diagonal. Are there any other components I would need to make this setup work?

    Answer rated: 1
    You can find example assemblies in this PDF: https://www.baader-planetarium.com/en/downloads/dl/file/id/1612/product/4550/universal_alan_gee_ii_uag_ii.pdf

    The 7.5m T-2 extension #2 mentioned on the left side of the PDF is included in the scope of delivery of the UAG, so you can screw the UAG between any binoviewer with T-2-thread like the MaxBright II or the old MaxBright and any of our T-2 star diagonals.

    If you have a standard 1.25" star diagonal without T-thread, this will not work to your satisfaction, as these star diagonals do have a longer optical length and no thread for attaching the binoviewer. We recommend a T-2 prism diagonal (they have the shortest optical length) plus the BTA-adapter for Schmidt-Cassegrains # 2408160, which can be screwed onto the back of your telescope, or a 2"/T-2 nose piece #2408150, if you have a 2" eyepiece holder on the back of your telescope.
    Answer by: Baader Web Team (Admin) on Aug 3, 2020 10:36:00 PM
  45. Rated: 0
    7/31/2020 4:18 PM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    Any chance you will be making one of these adapters that will work with the Canon EOS M (EF-M Bayonet)? A few competitors of yours have EOS M to T-2 adapters but having one of these that would fit an EF-M Bayonet with a 2" filter in front that can also connect to your UFC system would be amazing.

    Answer rated: 2
    EOS-M cameras are not common in Astrophotography. We would need to produce thousands of adaptors at once in mass production to make it happen, but unfortunately there is no demand for such an adaptor, your inquiry was the first ever.
    Answer by: Baader Web Team (Admin) on Jul 31, 2020 4:48:00 PM
  46. Rated: 1
    7/29/2020 10:04 PM Baader Sky Surfer V (Night & Day Design) Red-Dot-Finder
    Do you have a bracket to mount the Sky Surfer V to the top flat surface of my OTA rings, similar to the standard base, but flat on the bottom?

    Answer rated: -1
    Please note - the standard base has a sine-curve shaped bottom and does fit diameters from 4" to infinity. Means - it will sit snuggly on a flat surface.

    Several makers have copied the design - but did not understand the reason for the bottom shape - hence their copies wiggle, when fastened onto a flat surface.
    Answer by: Baader Web Team (Admin) on Jul 30, 2020 8:35:00 AM
  47. Rated: 1
    7/29/2020 7:34 AM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    So the Z6 to Wide-T-Ring to Baader filter drawer to T-ring for F mount Nikkor 70-200 f 2.8 lens. I want to slide a 2'' Optolong L-Pro filters
    What part number do I need from baader to make that happen?

    Answer rated: 0
    You need
    1x Baader UFC Straylight-Flange # 2459121
    1x Baader UFC Base (Filter Chamber) telescope-sided S70 dovetail receptor (optical height: 13 mm) # 2459110
    As many Baader UFC 2" (M48) Filter Slider # 2459112 as you have filters
    1x Baader UFC S70 / SP54 (m) Telescope-Adapter (optical height: 1 mm) # 2459134
    You also need the matching DT-rings https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/dt-rings.html to adapt from SP54 to the filter thread of your lens. I do believe that the Nikkor uses 77mm filters, but you should check the manual. For 77mm, you need two rings:
    1x Baader Hyperion DT-Ring SP54/M62 for DTAdapter II&III and Hyperion Eyepieces # 2958062
    1x Baader Hyperion Stepper-Ring M62 onto M77 # 2958077

    Please note that the 2" filter is much smaller than your camera lens and will cause some vignetting.
    Answer by: Baader Web Team (Admin) on Jul 29, 2020 8:22:00 AM
  48. Rated: 1
    7/28/2020 8:49 PM Baader FlipMirror II Star Diagonal
    What attachment would I need, to be able to screw the flip mirror directly to a Celestron CPC 1100? Also for a Celestron 8” Evolution.

    Answer rated: -2
    At the moment, we do not have an adapter from SC to M48, so you have to use T-2 and the 2" SCthread, which is standard on the C8 and one of the two threads of the C11 (it's the one where the 1.25" visual back is attached).
    You need
    Baader SC / HD Ultra Short T-Adaptor, 7mm optical length # 2958500B
    to attach it to the T-2-thread of the FlipMirror.
    Answer by: Baader Web Team (Admin) on Jul 29, 2020 9:13:00 AM
  49. Rated: -1
    7/28/2020 5:00 PM Baader MaxBright® II Sets
    What Glasspathcorrector would I require for my Altair Astro 152 v3 achromatic refractor and my skywatcher 127 Mak, would I require a different one for each or would one cover both.

    Answer rated: 0
    For Mak and SCT, we recommend
    Glasspathcorrector 1:1,25 for Baader-Binoviewer with T-2 thread (MaxBright® II and MaxBright®) # 2456314
    or
    Glasspathcorrector 1:1,25 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright® II and Mark V) # 2456314Z
    depending on whether you use the bino with Zeiss dovetail or T-2-connection (the optics are the same, only the body is different.

    For the lens telescope, you'd have to measure the available backfocus. We have an extensive description of chosing the right GPC e.g. in the manual of the MaxBright II at https://www.baader-planetarium.com/en/downloads/dl/file/id/1614/product/4317/manual_baader_maxbrightr_ii_binoviewer.pdf on page 20
    Answer by: Baader Web Team (Admin) on Jul 29, 2020 8:17:00 AM
  50. Rated: 0
    7/27/2020 8:15 PM Baader Micro Guide eyepiece with Log-Pot illuminator
    My batteries have become depleted and they didn't have any markings or designations, so I tried the LR44 batteries recommended on your website, but they're too large, please could you make another recommendation for my Micro-Guide eyepiece. Thanks in advance stephen

    Answer rated: -1
    For the Log Pot you need 2 X SR41 # 2454305B Battery
    Answer by: Baader Web Team (Admin) on Jul 30, 2020 3:17:00 PM
  51. Rated: 0
    7/27/2020 6:20 PM Baader 2" Amici-erecting-prism 90° with 2" holder and 2" sleeve
    For the prism 2956152 it states that it isn't for high magnification. On an American website however, High Point Scientific, for this model it states that "Correct image diagonals have been used traditionally for terrestrial viewing, and limited to low (under 100X) magnifications. The high quality of this diagonal lets you use much higher magnifications without aberrations or image breakdown". Would this information be incorrect? Many thanks

    Answer rated: 1
    For highest magnifications, we offer Baader 2"/90° Astro Amici-Prism with BBHS ® coating # 2456120 which is made for highest magnifications.

    #2956152 instead is a high-quality Amici prism and better that many prisms which are included in telescopes, but it is not made for highest magnifications.
    Answer by: Baader Web Team (Admin) on Jul 28, 2020 11:25:00 AM
  52. Rated: -3
    7/27/2020 3:16 PM Hyperion Zoom 2.25x Barlow lens
    Will this Barlow fit the space between the Hyperion Zoom and the 2" ClickLock Mirror Diagonal when the zoom lens has been directly connected to the diagonal with the 2i to 2a change ring?

    Answer rated: 5
    No, this would be too long to fit.
    Answer by: Baader Web Team (Admin) on Jul 28, 2020 11:21:00 AM
  53. Rated: 1
    7/27/2020 3:43 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Could someone here please tell me what do I need to buy to be able to connect my Canon EOS M6 Mark II to the Baader Hyperion Universal Zoom Mark IV, 8-24mm, which is connected to my Celestron nextstar 8se?

    I already have the Vivitar T-Mount to Canon EF-M Mount Adapter per bhphotovideo advice and it doesn’t work.

    Thank you so much!
    Ciprian

    Answer rated: 1
    You can find all possible camera adaptations in this PDF:
    Digiscoping - camera adaptations for afocal photography and eyepiece projection
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1210/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf

    For a full frame camera, you need
    Hyperion / Morpheus® T-Adapter M43i/T-2a (M42x0.75) # 2958080
    https://www.baader-planetarium.com/en/baader-hyperion-t-adapter-m43i--t-2a-%28m42x0.75%29.html
    and
    Baader T-2 / 40 mm Extension Tube (T-2 part #25B) # 1508153
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/astro-t2-system/baader-t-2--40-mm-extension-tube-%28t-2-part-25b%29.html

    Plus the T-ring for your camera, which you already have.

    For APS-C, a 30mm-extension is sufficient
    Answer by: Baader Web Team (Admin) on Jul 28, 2020 9:17:00 AM
  54. Rated: -1
    7/26/2020 10:37 PM Baader Standard Base - for MQR III&IV, for Witty One & for V-Bracket
    I am trying to mount a set of finder rings (Stellarvue R050DA which fits Synta base) to an Astro-Physics 130mm Starfire GTX. I am having trouble finding a finder base that will fit the screw spacing (approx. 35mm) and tube diameter (approx 130mm) for this telescope. The Baader Standard Finder Base looks like it might work but I have been unable to locate any dimensions that would verify it. Would you happen to have a sketch with dimensions for this base?

    Answer rated: 1
    The long holes are each 7x15mm wide, the minimum distance between them (the length of the metal between them) is 20mm.
    The central hole has got a diameter of 5mm.
    Answer by: Baader Web Team (Admin) on Jul 29, 2020 9:43:00 AM
  55. Rated: 0
    7/26/2020 10:10 PM Baader T-2 BBHS ® Mirror Diagonal
    I recently purchased one of your star diagonals. It is the T-2 BBHS Star Diagonal #2456103. I have read on your website that the optical path length is 43mm. However, I do not know the reference points for that measurement. For my star diagonal, do you have a diagram similar to the one in the link below? https://www.baader-planetarium.com/en/blog/optical-tube-lengths-of-2-clicklock-and-bbhs-mirror-diagonals/
    Or, can you please describe to me where the optical path begins and ends on the diagonal body?
    I need this information so I can accurately determine and measure backfocus distance.
    Thank you,
    John L

    Answer rated: 1
    The optical length is the length which it adds to the light path. In this case, the threads do not contribute because the "dissappear" when you place the star diagonal between two T-threads.

    The optical length is not always identical to the mechanical length, because the lenses in some parts change the focus point. It gives always the movement of the focus point when the part is used as intended.
    Answer by: Baader Web Team (Admin) on Jul 28, 2020 10:27:00 AM
  56. Rated: -1
    7/26/2020 10:08 AM Baader heavy-duty 8" double mounting plate, for up to 100kg
    Is this plate compatible with the 10 Micron clamps ie if you have two 10 Micron maxi clamps is the hole spacing on this plate compatible?
    Simon

    Answer rated: 0
    The 8" double-mounting plate is predrilled for the 8" Planewave Clamp as well as for Baader PanEQ clamps, it is not compatible for the 10Micron Maxi clamps by default.
    We could add this drillings by request, but these holes would not be black anodized like the rest of the plate, furthermore it would only be possible at the very edge of the plate and not be moveable. Also, since this would be a custom producion, it would take approximitaly four weeks.
    Answer by: Baader Web Team (Admin) on Jul 27, 2020 1:37:00 PM
  57. Rated: -2
    7/24/2020 7:50 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    I have just purchased the Orion 10" f/3.9 Newtonian Astrograph Reflector Telescope. Can you advise if the 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons) is compatible. I will be fitting it to a cannon 400d camera.

    Appreciate your help.

    Many thanks
    Pete

    Answer rated: 2
    If it is a true Newtonian without any additional correctors integrated, yes, the MPCC should work fine.
    We recommend the
    Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2" w. clear glass filter (as protection against dust) #2958550C
    plus
    Baader M48 Spacer Ring for MPCC III / Protective EOS T-Ring # 2458405
    to attach the camera and use the laergest possible diameter.
    Answer by: Baader Web Team (Admin) on Jul 28, 2020 9:39:00 AM
  58. Rated: 0
    7/22/2020 4:38 PM 1¼" / M41 Eyepiece-Adapter for Kowa TSN 770 / 880 Spotting Scopes
    Hi. I would like to know if the Baader astro adapter for Kowa 883 allows infinity focus with the Hyperion and Morpheus 5 and 4.5 mm eyepieces. Thank you very much

    Answer rated: 0
    Yes, it works e.g. with our eyepieces Morpheus 76°, Hyperion Zoom, Hyperion 68° and Classic-Ortho
    Answer by: Baader Web Team (Admin) on Jul 23, 2020 10:34:00 AM
  59. Rated: -1
    7/21/2020 3:09 PM Baader 2" NexStar locking ring.
    Is there a reason this wouldn't be suitable for use on a 6" SCT?

    Answer rated: 0
    The focussing knob on the telescope is too close to the SC-thread, so there isn't enough room for the locking ring. So, it doesn't fit mechanically.
    Answer by: Baader Web Team (Admin) on Jul 22, 2020 8:05:00 AM
  60. Rated: 1
    7/21/2020 8:29 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Which Adaptor do I need for the BDS-RT to fit my SW ED100 scope?

    Answer rated: -1
    There are countless telescopes on the marked so please see if the inner diameter of your tube is 97mm Most supposingly this adapter should fit well according your question:

    https://www.baader-planetarium.com/en/rt-adapter-%C3%B8-97mm-diamond-steeltrackr-(synta--celestron).html?___from_store=de

    https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/7d/1/rt-adapter-97mm-diamond-steeltrack-synta-celestron-9fa.jpg

    Answer by: Baader Web Team (Admin) on Jul 21, 2020 11:47:00 AM
  61. Rated: -1
    7/18/2020 8:27 PM BDSF: OD 3.8 Baader Digital Solar Filter (80mm - 280mm)
    I have a Canon 600mm f/4 IS lens with a cap that has an outer diameter of 184mm/7.25 inches do you have a BDSF: OD 3.8 Baader Digital Solar Filter that will fit?

    Answer rated: 0
    We have a Baader Solar Filter that fits your device. Please check out our ASTF 160mm Solar Filter:
    https://www.baader-planetarium.com/en/solar-observation/baader-solar-filter/astf-astrosolar-telescope-filter-od-5.0-(80mm---280mm).html#425=867

    Please note that we recommended the Filter with AstroSolar Safety Film OD 5.0
    The Baader Digital Solar Filter OD 3.8 is only recommended eyepiece Projection (afocal photography) and lucky imaging with video cameras. We explain the differences in details in the first FAQ on our AstroSolar website. Read more here:

    https://astrosolar.com/en/faqs/
    Answer by: Baader Web Team (Admin) on Jul 20, 2020 9:23:00 AM
  62. Rated: -1
    7/17/2020 10:23 PM Baader 2" ClickLock M54a x 0.75 clamp (TS-Optics / SkyWatcher)
    I bought this for a Skywatcher 8" Quattro Newtonian Telescope. It screws into the focuser but the threads are very very loose. Is this the correct Clicklock for my telescope ?

    Answer rated: -2
    You´ll need the ClickLock #2956254 not the 2956253 which you bought. The 2956254 is made with a M54x1 male thread with a diameter of 54,3mm because the the focuser is made with a M54,5x1 thread. This will match fine for you.


    Answer by: Baader Web Team (Admin) on Jul 20, 2020 9:39:00 AM
  63. Rated: -1
    7/15/2020 9:26 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I don't think I received the right answer to my question on connecting a Nikon Z6 to a Celestron EdgeHD 8.

    According to Celestron, the back focus distance for the EdgeHD 8" is 133.3mm.

    The Nikon Z series has got a flange distance of 16mm, the Wide T-ring is 8.3mm long, so in total its 24.3mm. The Celestron t-adapter is 50mm long for a total of 74.3mm.

    Your answer said I needed 30.7mm of distance, but don't I still need 59mm of distance (133.3 - 16 - 8.3 - 50 = 59)?

    Answer rated: -3
    Maybe the mistake is that there are twi different T-Adapters so please see this two links (sorry only german):

    https://www.celestron.de/ce_de/t-adapter-f%C3%BCr-edgehd-8.html
    https://www.celestron.de/ce_de/t-adapter-(c5-6-8-9-14-11-14).html

    The EdgeHD T-Adapter #93644 is 78,3mm long and needs an extension of 30,7mm that it fits your camer/bayonet ring.
    The T-Adapter #93633-A (second link) is 50mm long and could be used too. Just keep in mind that you need then of course
    different distance rings/extensions.
    Answer by: Baader Web Team (Admin) on Jul 16, 2020 9:36:00 AM
  64. Rated: -7
    7/14/2020 6:15 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I am connecting my Nikon Z6 to my Celestron 8EdgeHD. I already have the T-Adapter (Celestron part #93644). Do I just need this T-ring (part #2408335)?

    Answer rated: -3
    The Celestron T-adapter is designed for a flange focal distance of 55mm.
    The Nikon Z series has got a flange distance of 16mm, the Wide T-ring is 8.3mm long, so in total its 24.3mm, and you need an additional spacer with 30.7mm.

    This can be done either with 2x Baader T-2 / 15 mm Extension Tube (T-2 part #25A) # 1508154 plus some T-2 Fine-Adjustment rings (0,3 / 0,5 / 1 mm) - set #2457910, also available seperately. The distance should be matched by +/- 0.5mm for the EdgeHD.

    You can also use 1x Baader VariLock 46, lockable T-2 ExtensionTube 29-46mm with spanner tool (T-2 part #25V) # 2956946 to set the right distance.
    Answer by: Baader Web Team (Admin) on Jul 15, 2020 8:38:00 AM
  65. Rated: 1
    7/14/2020 10:17 AM VIP 2x modular barlow lens, visual and photographic
    Hello: I just buy a baader vip Barlow. I have used it with 1,25” connection (in scope and camera). Results are perfect. Congrats for the product
    I would like to use now in a 2” scope and in a reflex camera and I don’t know how to do it.
    Is there any schematic to see the way to do it.
    On the other hand, I would like to know the explanation about modules of the Barlow. On instructions included in the box, I don’t have in a clear way utilities of each module.
    Thank you in advance for your help

    Answer rated: -2
    To use the Barlow in a 2" focuser, you can use any 2"/1.25"-adapter like Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B) # 2956214.
    The magnification of the Barlow depends on the distance to camera sensor or field stop of the eyepiece. We have described it in the PDF https://www.baader-planetarium.com/en/downloads/dl/file/id/240/product/1062/calculating_different_magnifications_with_the_vip_barlow.pdf which you can also find in the download-section ot the product website.
    A standard T-ring gives you a distance of 55mm with a classical DSLR. You can screw the Barlow directly or with the included 15mm T-2 extension onto the T-ring of your camera.
    Answer by: Baader Web Team (Admin) on Jul 15, 2020 9:03:00 AM
  66. Rated: 0
    7/12/2020 6:03 PM Baader Hyperion 68° Eyepiece Set (Starter)
    I've got three eyepieces with FL 5, 8 and 13. I used to view with my 2" Focuser and that was great.
    Now I'm trying to view with 1.25" focuser/barrel but I've mixed them up. Is there a way to identify which barrel belongs to which eyepiece?. The three 1.25" barrels have the same height but I could notice different lens diameter.

    https://www.baader-planetarium.com/en/downloads/dl/file/id/92/product/1208/hyperion_eyepieces_technical_data.pdf

    Answer rated: 3
    The smaller lenses belong to the eyepieces with the smaller focal lengths. The 5mm eyepiece e.g. has got a front lens with ca. 7mm diameter.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 9:38:00 AM
  67. Rated: -1
    7/11/2020 11:55 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    The telecompressor slides into the baffle of my Celestron 8SE SCT but is not secure and slides out. I use a 2" Baader Click-Lock and a 2" nose piece that attaches to my OAG. There is nothing securing the telecompressor inside the baffle. How can I make sure it does not slide out?

    Answer rated: 1
    This is tricky as the Alan Gee is meant to be held in place by a T-thread.

    If you have got one of our 2" star diagonals, you can attach it as described on page 7 of the manual, with
    Baader Expansion Ring 2"a/T-2i with 1mm optical path length (T-2 part #28) # 2958242
    and
    Baader 2" / T-2 Nose Piece and Camera adapter (T-2 part #16) # 2408150

    It should also be possible to remove he Clicklock, clamp the UAG in the telescope with Baader Reducing-Ring 2"i / T-2a, with 1.5mm optical length
    # 2958244 or Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21) # 2408160 and expand the thread again to SC for the Clicklock with 2"a / T-2i Zero-length reducing piece (zero optical length) # 2454833 - but please always remember that the reducing factor depends on the distance between the Alan Gee and the eyepiece.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 3:04:00 PM
  68. Rated: -1
    7/11/2020 12:04 AM Alan Gee Telecompressor Mark II (T-2 part #20)
    I am thinking of buying an Alan Gee MkII, I am mostly confused as its visual use and which diagonals to use with it. I have a 9.25 SCT (non-HD). Is is only recommended to use with 2" diagonals or can I use it with the smaller T2 diagonals such as the T2 BBHS Zeiss prism? I was thinking of using that with the #16 T2 2" nose piece holding the Alan Gee and the T2 1.25 with diopter adjustment #8. I would be using the Baader Hyperion aspheric with 1.25 nose piece as well as other Hyperion eyepieces with 1.25 nose pieces. Would the combination of the aforementioned be best? I only have been thinking about using the prism because I want to get the widest and brightest view possible visually, and I also want to use the diagonal for the future purchase of binoviewers. I also don't want to by another 2" diagonal especially the click lock as I already have a Celestron twist-lock 2" diagonal.

    Answer rated: 2
    You can use it as well with T-2 star diagonals, but you may have to use some T-2-extensions to reach the desired factor, as it depends on the distance between Alan Gee and eyepiece.

    If you are interested in visual use, we'd recommend instead the Universal Alan Gee II - Telecompressor (UAG II) # 2454405. This contains the same optics as the Alan Gee, but it is preconfigured for easy use with a T-2-prism and a binoviewer or an T-2 eyepiece clamp as shown in the manual at https://www.baader-planetarium.com/en/universal-alan-gee-ii-telecompressor-uag-ii.html You just need to screw it to the back of your telescope, or insert it into a 2" eyepieceholder, if available.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 3:37:00 PM
  69. Rated: 1
    7/10/2020 8:09 PM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    Looking at the Protective T-Ring with filter chamber, it does not look like there is much room to grip and thread in a 2" threaded filter. Is there some tool available to insert and remove the filters like the pin type face wrench? If not how does someone insert and remove a 2" filter without touching the lens in such a small space?

    Also, now that there are five different Canon EOS R camera models released, do you have any plans to make a version of this Protective T-ring with filter chamber that can directly connect to the Canon R Bayonet?

    Answer rated: 0
    There is no special tool. Most filters don't have a completely smooth filter cell, but provide some kind of grip, which is enough so screw them into the filter thread and to remove them again - you don't have to screw them in with force, just hand-tight. Usually, this thread is used to permanently mount 2"-filters in the T-ring. If you want to change the filter on a regular bases, you better use the 2" filter thread in the nosepiece.

    At the moment, we are not working on a Protective T-ring for other cameras, but all our nosepieces (for Wide T-rings as well as for standard T-rings or SC-thread) do have a 2" filter thread, so you can mount a 2" filter permanently in the nosepiece and protect it with the included dust-caps of the nosepiece, when it is not in use, without removing the filter.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 2:51:00 PM
  70. Rated: 0
    7/10/2020 8:02 PM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    In another question you answered that the optical length of the Protective T-ring with filter chamber is actually 11,8mm and not the 12mm listed in the product specifications. Which value is correct?

    Also, when using the Protective T-ring on a classic Canon EOS DSLR (44mm optical length) or with a new mirror-less Cannon R with their EF-EOS R adapter (20mm + 24mm optical length), this would put the total optical length at 55,8mm or 56mm.

    Considering a Baader 2mm filter, we would then want to add 0,6mm to the total optical length to compensate for the extra focal length caused by refraction through the filter. This would then mean the proper optical length should be 55,6mm with a filter installed.

    Based on the stated 11,8mm or 12mm optical length, that means the optical length would include an extra 0,2mm or 0,4mm in optical length respectively.

    Will this difference in optical length have an impact? I ask because in another question I asked about the UFC system you suggested fine tuning spacers to get to exactly 55,6mm optical length when using the UFC system with a 2mm filter.

    Answer rated: 0
    11.8mm should be correct, although this is already in a region where the production tolerances of all parts in your setup add up.

    If this is a problem depends on the f-ratio of your telescope. Fast systems have got only a very small region where the image is sharp, while slower optics are sharp over a larger distance. Also, many optical acessories work with some tolerances. Our MPCC coma corrector e.g. gives the ideal working distance with +/- 1mm tolerance, a Celestron EdgeHD with +/- 0.5 mm for perfect seeing conditions.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 4:10:00 PM
  71. Rated: 0
    7/10/2020 6:18 PM Baader UFC S70 / T-2 Adapter Telescope-Adapter (optical height: 1 mm)
    The picture shows what appears to be a 0,3mm M48 fine-adjustment ring (#2457916). Is that what is shown in the picture? If that is correct is one included with this item?

    Answer rated: -1
    If the T2 male thread is too long it can cause a collition with the filter slider. This ring is not a #2457916 it is just a little helper to avoid a collition.
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 10:21:00 AM
  72. Rated: 1
    7/10/2020 6:10 PM Baader Pushfix Reducer 2" to 1¼" (T-2 part #15a)
    Hello, I have a C8 edge hd with the Baader 2 Clicklock diagonal mirror #2956100. You can use the Baader Pushfix reducer (T2 part 15a) with this diagonal mirror to reduce the back focus with the 1,25 eyepieces?? Thanks!

    Answer rated: 1
    Yes, you can use the Baader Pushfix Reducer for this purpose. However you will additionally also need our Baader 2" (male) / T-2 (male) adapter #1508035
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/2-inch-sc-thread/baader-adapter-2%22-(male)--t-2-(male).html
    Answer by: Baader Web Team (Admin) on Jul 13, 2020 9:42:00 AM
  73. Rated: 3
    7/10/2020 10:51 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Is there an 2" BDS-RT Baader Diamond Steeltrack Focuser Adapter for Explore Scientific ED APO with a 54mm 0,75 outer thread? (I have a clicklock 54i that is the fitting Im looking for also for the focus adapter). If not, I’d like to put that up on the wishlist.

    Answer rated: 3
    So far we had no plans to produce such an adapter, you're the first to request this. We will keep this in the "wishlist" but can't guarantee anything.
    Answer by: Baader Web Team (Admin) on Jul 20, 2020 2:09:00 PM
  74. Rated: -1
    7/9/2020 4:01 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I want to do projection photography with the Zoom Mark IV using a Canon EOS R with and without the Hyperion-Barlow 2.25x using the 2" barrel with my telescope.

    I believe I can do this by using a Wide-T-Ring Canon R (2408336), a UFC S52 Camera-Adapter (2459119), a UFC Base (2459110), a UFC S70 / T-2 Adapter (2459130), a Baader TQC/TCR Heavy duty T-2 Quick Changing System (2459130) and a M43 / T-2 Adapter (2958080).

    What I am not sure of is exactly what UFC S70 and/or T-2 extensions I would need to get the recommended back focus for use with the full frame EOS R camera. I am also not sure if I could fit the #2459130 in the setup, it would be convenient but by no means necessary. I am also not sure if I would require different extensions when using the Barlow.

    Can you please confirm if these parts will work as I intend (with or without the #2459130), what extensions I should use to get the recommended back focus with the EOS R camera and if I need different extensions when using the Barlow?

    Answer rated: 2
    Under the link Downloads you can find our PDF according digiscopie:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/3117/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    I´d prefer to adapt the camera this way:
    https://www.baader-planetarium.com/en/baader-hyperion-t-adapter-m43i--t-2a-(m42x0.75).html
    https://www.baader-planetarium.com/en/baader-t-2--15-mm-extension-tube-(t-2-part-25a).html 2 pieces
    https://www.baader-planetarium.com/en/baader-tqctcr-heavy-duty-t-2-quick-changing-system-(t-2-part-06a-and-07).html
    https://www.baader-planetarium.com/en/baader-wide-t-ring-canon-eos-with-d52i-to-t-2-and-s52-4289.html

    And as a separate combination:
    https://www.baader-planetarium.com/en/baader-2%22-safety-kerf-nosepiece-with-2%22-filter-thread.html
    https://www.baader-planetarium.com/en/baader-ufc-s70--2%22-adapter-2%22-sc-thread-(f)-telescope-sided.html
    https://www.baader-planetarium.com/en/baader-ufc-base-(filter-chamber)-telescope-sided-s70-dovetail-receptor.html
    https://www.baader-planetarium.com/en/baader-ufc-2%22-sc-adapter-2%22-(m)-camera-sided.html
    https://www.baader-planetarium.com/en/baader-2%22-clicklock-eyepiece-clamps.html

    Then you´re able to fast change filters and eye pieces. Just take care that it needs about 60mm back focus and it doesn´t
    allow using the zoom with barlow. On the other hand, please refer the first digiscopie PDF last page that you can reach an
    enormous focal length anyway. It should´nt be neccessary using the barlow.
    Answer by: Baader Web Team (Admin) on Jul 10, 2020 2:22:00 PM
  75. Rated: -3
    7/9/2020 3:24 AM Baader Wide-T-Ring Canon R (for Canon R bajonet) with D52i to T-2 and S52
    I would like to use this Canon R Wide T-Ring and the UFC system as shown in the product image with the telescope. I want to use it to attach a Canon EOS R to my telescope's field flattener which has 55 mm of back focus and a male T-2 connector.

    Answer rated: 3
    Ok, the optical length (or back focus) of the camera is 20mm so we have 35mm left for the adapters. From flattener to camera you´ll need following parts:
    https://www.baader-planetarium.com/en/m48-fine-adjustment-rings-(03--05--1-mm)---aluminium.html 1mm
    https://www.baader-planetarium.com/en/m48-fine-adjustment-rings-(03--05--1-mm)---aluminium.html 0,3mm
    https://www.baader-planetarium.com/en/baader-ufc-s70--t-2-adapter-t-2-(f)-telescope-sided.html 1mm
    https://www.baader-planetarium.com/en/baader-ufc-s705-extension-5mm-with-s70-dovetail--dovetail-clamp-screws.html 2pc=10mm
    https://www.baader-planetarium.com/en/baader-ufc-base-(filter-chamber)-telescope-sided-s70-dovetail-receptor.html 13mm
    https://www.baader-planetarium.com/en/baader-ufc-s52-dovetail-camera-adapter-(eos--sony).html 2mm
    https://www.baader-planetarium.com/en/baader-wide-t-ring-canon-eos-with-d52i-to-t-2-and-s52-4289.html 8,3mm

    This is in summary 35,6mm because filters lay out the focus to extra focal caused by refraction through the filter. Rule of thumb is a third
    of thickness of filter according to 2mm thick filter is roughly 0,6mm.
    Answer by: Baader Web Team (Admin) on Jul 9, 2020 2:34:00 PM
  76. Rated: 1
    7/9/2020 3:13 AM Baader T-Ring Canon EF (EOS) to T-2
    If I use this with a Canon EOS R that has the Canon Mount Adapter EF-EOS R (#2971C002) attached, will it work with my telescope's field flattener which has 55 mm of back focus without any other T-2 system parts?

    Answer rated: 1
    Yes! Back focus length of the Canon EOS-R is 20mm and the EF-EOS-R adapter is 24mm. Plus this 11mm long Canon EOS EF bayonet ring gives you the needed 55mm back focus.
    Answer by: Baader Web Team (Admin) on Jul 9, 2020 9:27:00 AM
  77. Rated: -1
    7/9/2020 3:08 AM Baader T-Ring Canon EF (EOS) to T-2
    If I use this with a Canon EOS 5D Mark IV will it work with my telescope's field flattener which has 55 mm of back focus without any other T-2 system parts?

    Answer rated: 4
    Yes! The optical length of the camera is 44mm and this bayonet ring is 11mm so you get the needed 55mm back focus.
    Answer by: Baader Web Team (Admin) on Jul 9, 2020 9:07:00 AM
  78. Rated: 1
    7/8/2020 4:50 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    I bought the MPCC to use with a Skywatcher Explorer 150d newton. Using an asi294mc, the only way I will get focus at infinity is to screw the corrector directly in the 11mm m42-m42 ring that comes with the asi. Adding spacers to reach 55mm doesn’t work. I am thus far from that 55mm that is supposedly required to reach focus. Any idea about what is happening here??

    Answer rated: 9
    Do you have any extensions in use which are required to reach focus with an eyepiece? The MPCC is designed to work with a DSLR, that's why it has a working distance of 55mm. To reach focus with a DSLR (or a camera with MPCC), the focusser must be moved farther inwards than with an eyepiece. On some Newtonians, this is made possible by some extension tubes, which must be removed for photography - otherwise, the focuser tube would be in front of the main mirror.
    On the other hand, there are Newtonians which are designed strictly for visual or photographic use, both by focus travel and size of the secondary mirror. With these telescopes, it may be that they can't provide the backfocus needed for a DSLR or a coma corrector, although you can reach focus with a camera which requires as little backfocus as your ZWO.
    Please check the telescope's manual if there is any information about attaching a cmaera, especially a DSLR.
    Answer by: Baader Web Team (Admin) on Jul 9, 2020 8:19:00 AM
  79. Rated: 1
    7/2/2020 8:05 PM Baader 2"/90° Astro Amici-Prism with BBHS ® coating
    Should I unscrew the 2" nosepiece of this eyepiece by hand? If so, it should be clockwise or conter clockwise?

    Answer rated: -4
    You can unscrew it by hand, there are no tools necessary. To unscrew it, rotate the nosepiece counterclockwise.
    The Clicklockk is held in place with the tiny screws at the side, but the noseiece is only screwed onto the body. It is the part Baader 2" Safety Kerf nosepiece with 2" filter thread # 2408156 with a regular thread (an SC-thread).
    Answer by: Baader Web Team (Admin) on Jul 3, 2020 8:09:00 AM
  80. Rated: 3
    7/1/2020 11:40 PM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Can this filter be used as an internal energy rejection filter for H-alpha solar observation on 140mm and 60mm refractors? The ERF would be placed in front of the diagonal mirror, and the etalon behind the diagonal.

    What is the filter's throughput beyond 1000nm?

    Answer rated: 6
    We do NOT recommend this! No filter near focus can replace a front end blocker - as 100% of solar energy hit the filter close in front of the focus position. Front end energy blocking is mandatory for H-alpha work - but not so for white light work.

    Why - because in white light you could use a Herschel Wedge Prism to throw away 95.4 % of ALL entering energy - before it even reaches the first neutral density filter or dielectric continuum filter.

    This is not possible on H-alpha - you need 100% of the H-alpha wavelength, but preferably zero of anything else. so - in theory - you can do this as you describe - but the filter at that heating point can break on you any second.

    Also - all photographic narrowband filters ought to be fully blocked OD 4.0 from 390 nm to 1150 nm - as this is the sensitivity range of almost all CCD/CMOS-chips (most filter suppliers though do not show their blocking efficacy above 700 nm....).

    So the 3.5nm H-alpha-filter is surely blocked to 1150 nm - but our front end D-ERF-filters are blocked to 1450 nm - exactly to provide perfect solar safety. Above 1400 nm most optics do not pass IR anyhow.
    Answer by: Baader Web Team (Admin) on Jul 2, 2020 7:47:00 AM
  81. Rated: 1
    7/1/2020 11:32 PM BCF 1 - DSLR Astro Conversion Filter for Canon APS-C Cameras (all latest Models)
    Which H alpha filter do I need for a canon 450D?

    Answer rated: 3
    The BCF1 will work.
    Answer by: Baader Web Team (Admin) on Jul 2, 2020 8:23:00 AM
  82. Rated: 1
    7/1/2020 3:22 PM Baader 2" Amici-erecting-prism 45° with 2" SC-thread and 2"/1¼"-reducer
    I have a Celeston C5, used for terrestrial viewing. What benefits should I expect by using Baader 2" Amici-Prism 45° instead of the supplied diagonal? And it is possible to use a Click Lock adapter on it? If so, what model?


    Answer rated: -1
    If you have a regular 90° star diagonal instead of an Amici at the moment, the Amici will deliver correct-orientated images like in a pair of binoculars or with the naked eye.

    The free aperture of this Amici is larger than that of many smaller Amici prisms which are included with some telescopes, so there is less vignetting with eyepieces with longer focal lengths, but both the C5 and the Amici have only got a free diameter of 26-27mm, so there will be some vignetting with most 2" eyepieces.

    It is not possible to replace the eyepiece clamp with a Clicklock.
    Answer by: Baader Web Team (Admin) on Jul 1, 2020 3:29:00 PM
  83. Rated: 1
    6/30/2020 7:10 AM Baader 17mm Hyperion 68° Modular Eyepiece
    I want to use it as a 2" eyepiece, what will be the focal length?

    Answer rated: 4
    As 17mm eyepiece, you can use it both with 1.25" and 2" focusers.
    If you remove the 1.25" nosepiece with the included optics, you have a 21.8mm eyepiece, which fits only for 2" focusers.
    Answer by: Baader Web Team (Admin) on Jun 30, 2020 12:44:00 PM
  84. Rated: 0
    6/29/2020 5:45 PM Baader FlipMirror II Star Diagonal
    Can the Flip Mirror 2 be used with the Celestron Edge HD 11 and what adaptor is needed to attach it to the telescope back?
    Thank you

    Answer rated: 4
    Yes it can. You only need our SC / HD Ultra-Short T-Adapter #2958500B, as described on page 5 of our FlipMirror II Instruction manual: https://www.baader-planetarium.com/en/downloads/dl/file/id/1568/product/4285/instruction_manual_baader_flipmirror_ii_star_diagonal.pdf
    Answer by: Baader Web Team (Admin) on Jun 30, 2020 3:30:00 PM
  85. Rated: -3
    6/29/2020 4:08 PM Baader Hyperion DT-Ring SP54/M43
    What specific items would I need to attach the 2" Venus filter to a 62mm Nikon camera lens? I am not attaching anything to a telescope. I know I need the filter holder M48/SP54, but I am confused about the DT rings.

    Answer rated: 0
    Correct, you need the M48/SP54 filter holder #2408166 and in addition only the Hyperion DT-Ring SP54/M62 #2958062 to connect the filter directly to your camera lens.
    Answer by: Baader Web Team (Admin) on Jun 30, 2020 8:08:00 AM
  86. Rated: -2
    6/29/2020 3:42 PM Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    What's the easiest way to attach the "Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp" to Televue NP127is and keeping the optical path shortest for Denkmeier Binotron 27 system?

    Is there also a way how to add UFC to the path and keep somehow ClickLock detachable for the bino vs single eyepiece use?

    Answer rated: 0
    You can replace the 2" Clicklock with Baader Adapter 2" (male) / T-2 (male) # 1508035, then you have a male T-2-thread at the end of the star diagonal. Here, you can either directly attach a binoviewer with female T-2-thread, or use a T-2 quickchanger (# 2456313A or # 2456313), if it has the Zeiss micro-bayonet dovetail. If your bino-viewer should have a female 2"/SC-thread, you can use Baader 2"/2" Inverter Ring with 48mm filter thread # 1508020 instead - I can't find an info about which threads the Denkmeier offers.

    To connect the UFC to one of our 2" star diagonals, you can e.g. remove the 2" nosepiece. It has got a male SC-thread, the body a female SC-thread. Then you need
    1x Baader UFC S70 / 2" SC-thread (f) Telescope-Adapter (optical height: 1 mm) # 2459128
    1x Baader UFC Base (Filter Chamber) telescope-sided S70 dovetail receptor (optical height: 13 mm) # 2459110
    1x Baader UFC 2" (m) SC Camera-Adapter (optical height: 2 mm) # 2459120
    plus the filter sliders. This adds 16mm to the length.

    Depending on the threads at the focuser of your telescope, it may be possible to connect the star diagonal via the SC-thread – but then, you can't rotate it easily into a convenient position, so this would be only recommended for telescopes on an alt-az mount.
    Answer by: Baader Web Team (Admin) on Jun 30, 2020 2:02:00 PM
  87. Rated: 2
    6/28/2020 11:11 PM Baader T-2 / 90° Baader Roof-Prism with BBHS ® coating (T-2 part #02)
    Regarding the quality of visual observation, is there any difference between this T2 Roof prism (2456130) and the 2" Astro Amici Prism (2456120)?

    Answer rated: -2
    Both of our Astro-Amici Prisms are produced with the same specifications. There is no difference in the quality of visual observation - the only difference is the size.
    Answer by: Baader Web Team (Admin) on Jun 29, 2020 10:30:00 AM
  88. Rated: 0
    6/27/2020 6:52 PM Baader Double T-Filterholder 1¼"
    Can this holder be used to insert a filter before the MaxBright II binoviewer connected to a Prism diagonal T-2/90º 32mm? Is anything else needed?

    Answer rated: 0
    This should work, although you probably need a T-2-extension (7,5 or 15mm) so that the filter doesn't hit the prism. A mirror diagonal is less critical. But there is a higher risk of reflections because the filter is very close to the prism diagonal and the prisms inside of the bino-viewer. We'd recommend to place the filter in the nosepiece in front of the star diagonal.
    Answer by: Baader Web Team (Admin) on Jun 29, 2020 1:21:00 PM
  89. Rated: 1
    6/25/2020 4:50 PM Universal Alan Gee II - Telecompressor (UAG II)
    I’d be interested in using the universal Alan Gee with my Maxbright binoviewer (old version) and for visual mono with my meade acf 12”. I already own a click lock diagonal. I’m not interested in photography
    I’d appreciate your input about field of view with the acf and if it can be used with my old binoviewer.

    Answer rated: -3
    This should work without problems. You can attach the UAG-II to the T-thread of the old MaxBright binoviewer, too.

    The focal length of the telescope will ve reduced approximately by factor 5.9.

    Please note that the focal length of a Schmidt-Cassegrain changes, if you place accerories farther away, e.g. with a 2" star diagonal. That's why we recommend a smaller T-2-star-diagonal. We do not have data on how much the focal length of a Meade ACF changes with a 2" star diagonal exactly, but it shouldn't be too much.
    Answer by: Baader Web Team (Admin) on Jun 25, 2020 4:57:00 PM
  90. Rated: 1
    6/24/2020 4:10 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    i have this eyepiece and a ZWO camera. Is there some adapter i need to connect the two?

    Answer rated: 4
    You need
    - Hyperion / Morpheus® T-Adapter M43/T-2 # 2958080
    plus either a T-2/1.25" eyepiece clamp like one of these:
    - https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps.html?filter_threads_lenssided=536
    or for C-Mount
    - Baader C-Mount T-2 with integrated 1¼" Filterholder # 2958520

    In addition, you may need T-2-extensions to achieve the desired magnification, and to enlargen the image so that there are no more distortions at the edge which appear when the sensor is too close to the lens - this depends on the sensor size.
    We have described several adaptations in this PDF:
    Digiscoping - camera adaptations for afocal photography and eyepiece projection
    at
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1206/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jun 24, 2020 4:27:00 PM
  91. Rated: 1
    6/24/2020 2:36 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Since I have recently bought a 2" telescope, I am looking to add 2" (not 1.25" eyepieces) eyepieces.
    In appearance, the baader hyperion selection look like 2" with a 1.25" projection added on.
    My question: Are these eyepieces, basically 1.25" made usuable in 2" telescopes? Or 2" eyepieces with a 1.25 projection added on?

    Answer rated: 2
    Your first assumption is correct. They are, like most of our other eyepieces, in fact 1.25" eyepieces which can be used for 2" as well. The only "true" 2" eyepieces we currently sell are our Hyperion Asphercic 31mm and 36mm: https://www.baader-planetarium.com/en/accessories/optical-accessories/eyepieces.html?filter_eyepiece_opticaldesign=320
    Answer by: Baader Web Team (Admin) on Jun 24, 2020 7:50:00 AM
  92. Rated: 0
    6/23/2020 8:33 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I have a nikon z6 and need the exact part list needed to connect it to a celestron cpc 11 with the celestron reducer/corrector f/6.3. I would like two options one providing ability to use a filter and one without the ability to use a filter. Thank you.

    Answer rated: -3
    The reducer has got a backfocus of ca. 105mm.

    The Nikon Z has got a flange focal distance of 16mm, to which our Wide T-Ring adds 8.3mm. The
    - T-Adapter (C5, 6, 8, 9-1/4, 11, 14) #93633-A # 820760
    adds another 50mm, so you have a distance of 74,3mm and need another 30mm as T-2-extensions – e.g.
    - 2x Baader T-2 / 15 mm Extension Tube (T-2 part #25A) # 1508154.

    For the UFC, you can mount it directly to the SC-thread of the reducer e.g. with

    - Baader UFC S70 / 2" SC-thread (f) Telescope-Adapter (optical height: 1 mm) # 2459128
    - Baader UFC Base (Filter Chamber) telescope-sided S70 dovetail receptor (optical height: 13 mm) # 2459110
    - e.g. Baader UFC 2" (M48) Filter Slider # 2459112 for 2"-filters
    - Baader S52 dovetail Camera-Adapter for Wide-T-rings (optical height: 2 mm) # 2459119
    - Baader UFC S70/15 Extension 40mm # 2459143
    - Baader UFC S70 Extension 5mm # 2459141
    - Baader UFC S70 VariLock 15-20mm extension # 2459145 set to 20mm
    That's 81mm for the UFC plus 24mm for the camera + Wide T-ring

    This gives you a larger free aperture than the T-2-adaptation above. Of course, you can insert an empty filter slider to take photos without a filter.
    Answer by: Baader Web Team (Admin) on Jun 24, 2020 3:14:00 PM
  93. Rated: 1
    6/22/2020 8:39 PM Baader Hyperion DT-Ring SP54/M43
    I have a couple of Hyperion eyepieces and on the box they show this adapter connection to a camera for eyepiece projection photography. I purchased one and do not see anyway it screws onto the eyepiece and it does not connect to my Canon DSLR. Can you explain what adapters I need to connect my eyepieces to a Canon EOS Rebel T6 / EOS 1300D?.

    Thank you

    Answer rated: 1
    The Hyperion eyepieces feature two thread connections. Removing the dustcap reveals the M43 thread. Removing also the thread protection ring (made of silicone rubber) will reveal a SP54 thread.
    So the SP54 / M43 Adapter, where you asked your question, will not work because at first it would require an additional SP54 extension ring #2958090. And secondly it makes no sense because the M43 thread is already available.
    With the DT-Ring you can however make a lot of other connections. We strongly suggest that you first take a look at our PDF
    Hyperion Application Examples: https://www.baader-planetarium.com/de/downloads/dl/file/id/134/product/1209/hyperion_eyepieces_application_examples.pdf
    and secondly also our
    Digiscoping Brochure: https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1209/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jun 23, 2020 8:25:00 AM
  94. Rated: -1
    6/20/2020 11:04 PM Baader MaxBright® II Binoviewer with case
    I have strabismus. Should I have trouble using MaxBright II due to this condition?

    Answer rated: 1
    We cant judge the severity grade of your condition. If its light, than your eyes should be able to compensate. But we would advise you to first buy a cheap or used binoviewer (or try one out at a star party / astro show or so on) to find out if binoviewing in general is possible for you.
    Answer by: Baader Web Team (Admin) on Jun 22, 2020 10:00:00 AM
  95. Rated: -1
    6/19/2020 8:48 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have a Meade Instruments 07363 No.64 SLR Camera T-Adapter connected to the visual back port of my meade ETX 90mm telescope. I would like to connect my Hyperion Mark IV zoom directly to the male threaded T adapter end of this Meade adapter. Is there an adapter ring that fits into the telescope end of the Hyperion lens (similar to how the "A" and "B" adapter rings work) that will allow it to screw directly onto the T thread of this Meade #64?

    Answer rated: 4
    Yes, the Hyperion provides an SC-thread, which you can use for this adapter:
    2"a / T-2i Zero-length reducing piece (zero optical length) # 2454833
    Answer by: Baader Web Team (Admin) on Jun 22, 2020 9:41:00 AM
  96. Rated: -1
    6/19/2020 4:51 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I was told that the outside diameter at the turning ring of the Baader Hyperion 8-24mm Mark IV Zoom Eyepiece (1.25"/2") is 55.07mm. I was trying to make sure that this eyepiece would fit inside the Orion Variable Universal Camera Adapter for eyepiece-projection photography on my refractor telescope: https://www.telescope.com/catalog/product.jsp?productId=101417

    Unfortunately, it would not as the inside diameter of the adapter is 38.3mm,

    Do you have a similar product that I can use with this eyepiece for eyepiece-projection photography on my Orion ED80 refractor telescope...???

    Thanks in advance.

    Answer rated: 3
    You can use for your application our Classic Ortho / Plössl eyepieces with a maximum outer diameter of 34,8 mm:
    https://www.baader-planetarium.com/en/accessories/optical-accessories/eyepieces/q-turret-classic-ortho-plossl.html

    These are fixed focal lengths however. We do not have such narrow zoom eyepieces. We also have different eyepiece projection adapters if you're interested (but they also only accomodate our classic ortho/plössl eyepieces):

    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/projection-adapters/opfa---eyepiece-projection-adapter--(-i---vii-).html

    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/projection-adapters/adps---afocal-digital-projection-system-(-i---vii-).html
    Answer by: Baader Web Team (Admin) on Jun 19, 2020 9:21:00 AM
  97. Rated: 1
    6/17/2020 6:15 AM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I have a mewlon 250 crs and Nikon Z6 . what i need more with baader wide T-ring for Nikon Z bajonet ref 2408335. Cordially.

    Answer rated: -2
    This depends on the connections of your telescope (and if you need to keep a certain distance to a reducer) - I'm sorry, but we don't have all data here available.

    The easiest way is usually the S52 barrel #2958551, then you can adapt it like any 2" eyepiece.

    For all other configurations, please let us know which threads you have available or if you need to keep a certain distance.
    Answer by: Baader Web Team (Admin) on Jun 17, 2020 9:24:00 AM
  98. Rated: 0
    6/16/2020 4:34 PM Baader T-2 / 90° Baader Roof-Prism with BBHS ® coating (T-2 part #02)
    Is this T-2 Baader Roof prism recommended for using with Mark V and a Celestron 9.25 SCT ? If so, what additional accessories are needed for a complete configuration?

    Answer rated: 1
    To use this or any other T-2 prism with the Binoviewer you need on the binoviewer side:
    - Baader Heavy Duty T-2 QuickChanger (T-2 part #06A) # 2456313A
    to connect it to the Zeiss Microbayonet ring-dovetail.

    On the telescope side, you need either one of these nosepieces:
    - Baader Nose piece 1¼" / T-2 (T-2 part #14) # 2458105
    - Baader 2" / T-2 Nose Piece and Camera adapter (T-2 part #16) # 2408150
    or you can screw it directly onto a Schmidt-Cassegrain 2"-SC-thread with
    - Baader SC / HD Ultra Short T-Adaptor, 7mm optical length # 2958500B

    You can use this roof prism with a binoviewer, too. But please note that even astro-grade prism still has the roof edge. So, while it will not produce double images even at high magnifications, there can be reflections at the roof which goes straight through the center of the field of view. So, if you have a bright object in the center, there can be reflections (just like there are spike in a Newtonian telescope caused by the holder of the secondary mirror). You can reduce them by moving the planet/star to the side, but they are part of the optical design. As binoviewers are often used for observing planets, we usually recommend to use a standard prism (which also requires less length).
    Answer by: Baader Web Team (Admin) on Jun 17, 2020 11:35:00 AM
  99. Rated: 1
    6/16/2020 4:08 AM Mark V Großfeld (Giant)-Binocular
    What are the recommended accessories for using Mark V with a Celestron 9.25?

    Answer rated: 4
    We have described several adaptations in the manual which you can find in the download section of the MaxBright Binonoviewers website. For an SC, you basically only need a nosepiece. We also recommend a Glasspath Corrector 1.25x, although it is not absolutely necessary - but at higher magnifications, it removes the colour aberrations which may be visible even at an f/10 telescope.
    You can find sets with nosepiece and GPC here:
    https://www.baader-planetarium.com/en/accessories/optical-accessories/bino-viewer/maxbright-ii-sets.html

    Please make sure that you have a sturdy eyepiece clamp. For a compact adaptation, we also recommend a TZ-2 star diagonal which can be attached directly to the binoviewer, but reaching focus is no problem with a Schmidt-Cassegrain.
    Answer by: Baader Web Team (Admin) on Jun 16, 2020 10:41:00 AM
  100. Rated: 2
    6/15/2020 11:46 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    What do I need to attach a Nikon Z6 camera to a Celestron HD 14" telescope? Sorry I find your web site very confusing. Thanks for your help

    Answer rated: 1
    The Celestron C14 EdgeHD has a back focus of 146,05mm and needs a T-adapter like this (US Item #93622)::
    https://www.celestron.de/ce_de/t-adapter-48mm-edgehd-925-11-14.html
    We recommend this bigger M48 adapter instead of the smaller with T2 thread M42x0,75 because your camera has a full format sensor. From this adapter you have 55mm left which should be fine for DSLR cameras. But you have a mirrorless camera with 16mm back focus plus this Rings:
    https://www.baader-planetarium.com/en/baader-wide-t-ring-nikon-z-with-d52i-to-t-2-and-s52.html
    https://www.baader-planetarium.com/en/changer-ring-s52--m48.html
    which hight is 8,3mm. So you have a gap of 30,7mm between your camera and DSLR (55-16-8.3) which you can fill with this rings:
    https://www.baader-planetarium.com/en/baader-hyperion-finetuning-ring-28.html
    https://www.baader-planetarium.com/de/m48-fein-abstimmringe-aus-aluminium-(03--05--1-mm).html (2pc of 1mm and 1pc of 0.5mm)
    Answer by: Baader Web Team (Admin) on Jun 16, 2020 9:46:00 AM
  101. Rated: -3
    6/14/2020 9:04 PM Bundle: Hyperion Universal Zoom Mark IV with Hyperion-Barlow 2.25x (8-24mm / 3.6-10.7mm)
    For use with a binoviewer, should I buy one or two Barlows?

    Answer rated: 0
    If you want to use a Barlow lens, you should always place it directly in front of the eyepiece - otherwise, it would deliver a much, much higher magnification. A binoviewer has got an optical length of ca. 11cm, so you'd probably be way beyond the useful magnification - you can find more information in our PDF "Calculating different Magnifications with the VIP-Barlow" at
    https://www.baader-planetarium.com/en/downloads/dl/file/id/240/product/1062/calculating_different_magnifications_with_the_vip_barlow.pdf
    The calculations are similar for all Barlow lenses.

    Instead of using two Barlow lenses, we'd highly recommend to use different glasspath correctors (GPC) to achieve different magnifications with a binoviewer.

    You should use a GPC, anyway, to make sure that you reach focus and to eliminate any colour aberrations which might be caused by the prisms inside of the binoviewer. This way, you can also be sure that the image quality is good – if you use two BArlow lenses, both should be made in the same production run to avoid any small differences which are no problem when you use them for mono-viewing, but which become obvious when bino-viewing. That's also why both eyepieces should be bought together.

    And an additional bonus, aside of the quality: One GPC is cheaper than two Barlow lenses.
    Answer by: Baader Web Team (Admin) on Jun 15, 2020 8:19:00 AM
  102. Rated: 0
    6/14/2020 4:40 PM Baader DSLR-2" Filter Holder M48/SP54
    I have a number of Hyperion & Morpheus eyepieces, and I want to use 2 single polarizing filters to control moonlight, etc. I'll attach a 2" filter to the diagonal, but where should I put the second (either a 2" or 1.25") filter on the eyepiece? And where should it go on the Morpeus? If, on the Hyperion, it goes between the nosepiece and the body, will that affect the characteristics of the eyepiece?

    Answer rated: -1
    Both Hyperion and Morpheus eyepieces feature a 1.25" thread, so it is the easiest if you simply use a Baader Single Polarizing Filter 1¼"
    #2408343 for the eyepieces and a 2" for the star diagonal.
    If you already own two single 2" polarizing filters, you can place one in the reducing adapter from 2" two 1.25" - most of them provide a 2" filter thread, or you can use one of ours: https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps.html?filter_threads_eyepiecesided=516&filter_threads_lenssided=523

    If you insert a 2" filter into the body of a Hyperion, it will act like a finetuning ring with the length of the filter height (6 or 8mm, depending on the filter cell) and increase the focal length of the eyepiece. These rings and their effects are described e.g. in this PDF: https://www.baader-planetarium.com/en/downloads/dl/file/id/134/product/1210/hyperion_eyepieces_application_examples.pdf
    Answer by: Baader Web Team (Admin) on Jun 15, 2020 8:30:00 AM
  103. Rated: 1
    6/11/2020 3:49 PM Baader 2" Cool-Ceramic Safety Herschel Prism (Visual / Photographic)
    The documentation states that the Solar Continuum filter can be removed when using a fully apochromatic APO refractor*. What is implied is that a 1.8 ND filter should be substituted when doing visual observing – with of course the 3.0 ND filter still being in place. Please confirm.

    If this is the case, please also clarify if the 1.8 ND filter should be placed where the Continuum filter was with the 3.0 ND behind it closest to the eye piece, the other way around with the 3.0 ND closest to the prism with the 1.8 ND closest to the eye piece, or whether it makes no difference.

    *The documentation specifically mentions Astro Physics, TEC, and Zeiss. I am using a Tele Vue-85 which claims APO performance.

    Answer rated: 1
    We do not comment on the APO-status of the TV-85, but we confirm that visual and imaging results will show solar surface details in better sharpness when keeping the continuum filter in the light path.

    To be straight! The Herschel wedge warrants for a safe solar viewing experience, with only the ND 3.0 filter in place! However, the photopic reception of brightness is very different for different eyes (and related to age as well!).

    When adding a solar continuum filter, the user has the same amount of transmission reaching the eye as without such a filter - but only within a 10 nm wide part of the spectrum at 540 nm. For this reason the "overall brighness" is perceived as being less. But if the Herschel wedge (w. ND 3.0 filter in place) were transmitting a dangerous amount of energy - even the small 10 nm "window" would constitute a "danger".

    So for a 99.9 % majority of people it is not "necessary" from the aspect of safety, to add another ND -filter on top of the necessary ND 3.0 filter. But - a small number of people do inherit raised sensitivity for brightness, leading to eventual phototoxic reactions in the eye during prolonged and repeated exposure to light levels that would be perceived as normal by others.

    Effects of phototoxic overreaction have been exhaustively investigated for the new generation of LED and CREE light sources which can compete in their radiation intensity with solar brightness in the meantime - when stared into at close distance. So the same precautions as valid for direct intensive LED illumination must be observed for Herschel-wedge operation just as well.

    Fortunately most people have a "built in" aversive-reaction, to avoid excessive amounts of light falling onto the retina. So everyone observing the sun should be attentive to constantly observe his own "comfort feeling". If the visual brightness is experienced as causing strain on the eye, or an "afterglow-experience" will remain for some time when lifting the eye from the eyepiece, - in these cases a further added 0.9 ND filter will largely help to have a comfortable seeing experience. Adding a 1.8 ND filter though onto the 3.0 ND-filter will dim the solar image to a degree that fine solar details become invisible (unnecessarily).

    Do test the Herschel brightness experience in good faith for a few seconds with only the ND 3.0 filter in place (always!). Depending on your age then maybe add a 0.9 ND- or even 0.6 ND-filter, until the image brightness is perceived as comfortable even at viewing sessions of up to 3 minutes. After each 3 minutes a short pause is mandatory, to check for any "afterglow"- effects, for dizzyness or for impaired vision. This is because brightness strain on the eye can bring out hidden retina damages or very early retina dislocation that went unnoticed before.

    Only for imaging purposes, the ND 3.0 filter may be taken off the light path and replaced with one of the photographic ND-filters (0.6/0.9 or 1.8 ND) - so as to arrange brightness in a way that the shortest available camera exposure time can be made use of.
    Answer by: Baader Web Team (Admin) on Jun 15, 2020 2:42:00 PM
  104. Rated: 1
    6/9/2020 10:27 AM Baader M43a x 0.75 / T-2a Adapter (e.g. for Takahashi)
    I believe that This part with internal threads M43x0.75 should be able to accomodate the lens element of the baader VIp barlow. ??

    Answer rated: -1
    Yes, the small Barlow-element will fit here, too.
    Answer by: Baader Web Team (Admin) on Jun 9, 2020 12:22:00 PM
  105. Rated: 0
    6/8/2020 6:54 PM Baader Zenith Prism Diagonal T-2/90 ° with 32mm Prism (T-2 part #14)
    I am interested in your 1.25 star diagonals. I would like to upgrade from my stock 90 degree on my MAK-CASS. What is the preferred diagonal for this scope mirror or prism. Thanks for your time and consideration. Kind regards.

    Answer rated: 2
    Today, you can usually chose a good mirror and be happy; only some older high-end refractor telescopes needed a prism as part of their optical design.
    If you want to dig deeper into this question (which has no final answer), we recommend two PDFs on our website:

    Baader Star Diagonals (T-2 and 2") at https://www.baader-planetarium.com/en/downloads/dl/file/id/1617/product/1687/baader_star_diagonals_t_2_and_2.pdf – here we explain the differences between our various star diagonals and coatings

    Testreview - Mirror vs. dielectric vs. prism diagonal comparison - W. Paolini at https://www.baader-planetarium.com/en/downloads/dl/file/id/160/product/2871/testreview_mirror_vs_dielectric_vs_prism_diagonal_comparison_w_paolini.pdf – an in-depth test of mirrors and prisms.
    Answer by: Baader Web Team (Admin) on Jun 10, 2020 3:37:00 PM
  106. Rated: 1
    6/7/2020 8:00 AM 10x60 TEC Finder incl. finderbracket and plate
    The T2 /1.25 focuser is shown as an optional accessory for the Vario. Can it be attached to the Vario with the supplied parts or any extra rings required ?. Can it be attached to both the 45 and 90 degree prisms?

    Answer rated: 1
    Both the body of the VarioFinder and the included prism both do have male T-threads, so you can simply remove the existing eyepiece clamp or the Polaris eyepiece, which is attached to the prism via the T-thread, and replace them with any of our T-2-focusers like the Baader Focusing Eyepiece Holder 1¼" / T-2 # 2458125.

    These focusers also fit onto all our T-2-prisms and mirrors, including the one supplied with the VarioFinder.

    So, you can easily replace e.g. the Polaris Crosshair-eyepiece with the Baader Focusing Eyepiece Holder 1¼" / T-2 # 2458125 and use your existing 1¼" eyepieces.

    You can also combine the Polaris with Baader Nose piece 1¼" / T-2 # 2458105 and use it with every other telescope.
    Answer by: Baader Web Team (Admin) on Jun 8, 2020 9:35:00 AM
  107. Rated: 2
    6/5/2020 10:11 PM Baader 10mm Hyperion 68° Modular Eyepiece
    I bought a Baader Hyperion 10 mm telescope IP's, and it came with a rubber attachment. No instructions. What is it and how do I attach it to the eyepiece?

    Answer rated: 2
    You are probably talking about the winged eyecup, which is especially for bino-viewing.

    You can see the whole scope of supply in the PDF "Hyperion eyepieces application examples" at
    https://www.baader-planetarium.com/en/downloads/dl/file/id/134/product/1210/hyperion_eyepieces_application_examples.pdf
    Answer by: Baader Web Team (Admin) on Jun 17, 2020 9:10:00 AM
  108. Rated: 1
    6/5/2020 5:51 PM Baader MaxBright® II Binoviewer with case
    Can this be used for terrestrial viewing using an 8" SCT? Will the image be upright / mirror imaged / upside down?

    Answer rated: 9
    The binoviewer itself does not change the orientation of the image from telescope. In another words you´ll have the same image with or without it when using an eye pice. Therefore we recommend an amici prism for terrestrical view:
    https://www.baader-planetarium.com/en/catalogsearch/result/?q=amici&___from_store=de
    Answer by: Baader Web Team (Admin) on Jun 8, 2020 2:52:00 PM
  109. Rated: 1
    6/5/2020 2:22 PM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    What do I need to connect my SBIG ST-8300M to my CPC800XLT SCT? What will be the back focus of the ClickLock system?

    Answer rated: 7
    For the C925, you can use Baader 2" ClickLock SCL (3.3") clamp (C9¼" - C14") #2956233
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps/baader-2%22-clicklock-eyepiece-clamps.html#574=931
    to use any camera with a 2" nosepiece. It has got a length of 40mm. The ideal backfocus of a Schmidt-Cassegrain is about 5" (a little bit omre for the C925, see https://www.celestron.com/blogs/knowledgebase/what-are-the-optimum-back-focus-distances-for-celestron-scts
    So, to use it the perfect distance, you may want to get closer to this with an extension like Baader 2" ClickLock 47 mm extension #2956247 or some other extension tubes. But you'll reach focus without the extension, too.

    Celestron provides a T-adapter to SC which gives you the right distance, but it uses only the T-thread (M42x0.75) and will cause vignetting on a full-frame sensor (and is also calculated for a DSLR with 55mm flange distance.
    Answer by: Baader Web Team (Admin) on Jun 5, 2020 3:00:00 PM
  110. Rated: -2
    6/4/2020 6:35 PM Baader 2" Cool-Ceramic Safety Herschel Prism (Visual / Photographic)
    Can I use the BDSF sunscreen at the same time, to protect my lens from televue 85, and then put the herschell baader prism?
    Would it work well?

    Answer rated: 3
    When using the Safety Herschel Wedge, no additional front aperture filter is needed.
    Please also read the instructions for the Herschel Wedge thoroughly and only use this product if you feel well informed about the consequenzes of wrong handling.
    Answer by: Baader Web Team (Admin) on Jun 5, 2020 8:36:00 AM
  111. Rated: 0
    6/3/2020 8:43 PM Baader U-Venus-Filter (350nm)
    hello could you tell me if the characteristics are the best between 1.25 and 2 "for uv terrestrial imagery (uvivf)

    Answer rated: 0
    Sorry, we are not sure if we understand your question.
    Most camera chips and telescopes are already very insensitive in this spectral range - or optically not calculated for it.
    Therefore a purchase for UV-imaging has to start with a careful research to find out which imaging instruments are suitable. Unfortunately, we cannot take this research off your hands.
    Answer by: Baader Web Team (Admin) on Jun 8, 2020 2:41:00 PM
  112. Rated: 4
    6/3/2020 10:34 AM Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B)
    I also have a Celestron Evolution HD 8 telescope. My diagonal is 1.25 inches. Can I install the 2 inch Clicklock as the telescope’s new visual back, immediately followed by the 2 to 1.25 inch Clicklock Reducer, then my 1.25 inch diagonal (regular non-Baader)?

    Answer rated: 1
    Yes, no problem - all standard 2" accessories fit into the 2" ClickLock, and all 1.25" accessorieries fit into the 2"/1.25" reducer.
    Answer by: Baader Web Team (Admin) on Jun 3, 2020 10:39:00 AM
  113. Rated: 0
    6/3/2020 9:08 AM 6,5 mm Morpheus® 76° widefield eyepiece
    My telescope is a Celestron NexStar Evolution 8 HD. I have a Morpheus 6.5 mm eyepiece and want to do eyepiece projection with a Celestron Neximage 10 camera. Page 2 of the Morpheus Instruction Manual lists required parts to do this but I don’t understand the multiple choice part selection I should consider. First, the camera is at the top with immediately below it either a Clicklock clamp 2458100 or a focusing eyepiece holder 2458125. Is there a purpose for choosing 2458125 which can move (also cheaper than the Clicklock clamp which doesn’t move)? Then there is a T-2 extension tube in three sizes. How do I determine which size to purchase (7.5, 15, 40mm)? I also have a Hyperion Zoom eyepiece and would the same choice of required parts apply to it?

    Answer rated: 2
    Please take a look at this PDF, where we describe the different camera adaptations:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/2846/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf

    There you will also find the formula which gives you the effective focal length which you reach with this method. It depends on the distance between eyepiece and sensor. Also, with a larger sensor like a DSLR, you need a larger distance, otherwise there will be distortions at the field of view. Also, the desired f/ratio depends on the pixel size of your camera; it shouldn't be slower than f/30; cameras with very small pixel even work best at f/10, otherwise the pixel size and the resolution of your camera don't match.

    So, you should determine the desired effective focal length and match the T-2-extensions to it. With a long-focal-length telescope like a Schmidt-Cassegrain, you'll probably prefer the Hyperion zoom over the Morpheus because of the resulting focal length.

    Both Morpheus and the recent Hyperion eyepieces require the M43/T-2-adapter #2958080.

    You can use both 1.25" clamps. The Clicklock gives a firmer grip, while you can better finetune the distance with the cheaper clamp - and it is especially interesting for focusing, so that you can avoid any mirror shift by telescopes like a Schmidt-Cassegrain.
    Answer by: Baader Web Team (Admin) on Jun 3, 2020 9:24:00 AM
  114. Rated: -1
    6/2/2020 10:54 PM Baader Q-Barlow 2.25x / 1.3x
    Please can you share the focal length of the q-barlow? Thanks

    Answer rated: 2
    The focal length is 45,5 mm.
    Answer by: Baader Web Team (Admin) on Jun 3, 2020 4:21:00 PM
  115. Rated: 1
    6/2/2020 3:53 PM Baader 36mm Hyperion Aspheric 2" Eyepiece
    Can this eyepiece be used in "eyepiece projection" configuration as telecompressor (speed booster)? I need to fit moon from my Celestron C11 on an APS-C sensor (~14mm diam Moon)

    Answer rated: 0
    No, eyepiece projection will always increase the effective focal length and give you a higher magnification.

    You need a Telecompressor like the Alan Gee # 2454400 - but even there with a factor of .59, the moon would probably be slightly too large with a focal length of 1652mm. You can increase the reducing factor by increasing the distance with additional T-2 extension rings, but the image circle will also become smaller. The image circle of the Alan Gee is 15mm, so it should just work - but this so close to the edges of the specifications that it should be tested at the moon - and it can make a difference if the moon is in apogee or perigee.

    But you can use the Hyperion 36mm, attach a smartphone e.g. with the Celetron NeXYZ smartphone adapter and use your smartphone camera to take pictures of the complete moon.
    Answer by: Baader Web Team (Admin) on Jun 3, 2020 8:52:00 AM
  116. Rated: -1
    6/2/2020 4:59 AM Glasspathcorrector 1:1,25 for Baader-Binoviewer with T-2 thread (MaxBright® II and MaxBright®)
    Is it possible to screw a 1.7x GPC into the front of my 2” T2 diagonal? I currently turn it into the Maxbright II, but that results in just 1.45x. I’d like to move it forward, in front of the diagonal, in order to increase the power. I can’t change the 2” nosepiece because that would require me to add adapters (and light path) to my Tak in order to use a 1 1/4” diagonal nosepiece.

    Answer rated: 1
    You can insert the GPC in our 2"/T-2-nosepiece, if you still have the plastic ring which is included with the GPC. This will give you a higher magnification and is described on page 13 of the manual:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/1614/product/4317/manual_baader_maxbrightr_ii_binoviewer.pdf

    Depending on the GPC (T-2 or Zeiss microbayonet), you may have to turn the lens package around.

    You can change the configuration of the 1.25x and 1.7x GPCs, so that the wide rim of the body faces either towards the eyepiece or the telescope. This way, you can install the lens element in such a way that the convex lens faces towards the telescope as indicated in the small sticker included with the box and shown on top of this page. To do so, you must remove the lens package from the body and install it the other way round.
    Answer by: Baader Web Team (Admin) on Jun 2, 2020 3:25:00 PM
  117. Rated: -1
    5/31/2020 6:26 PM Telecentric System TZ-4 (4x focal length)
    Hi, I'm thinking of buying the Telecentric System TZ-4 (or possibly a TZ-3) where my telescope is a Lunt 100mm H-alpha Double-Stacked. Would you also recommend that I purchase the M68 Tele-Compendium? In truth, I'm not entirely sure of the purpose of the M68 other than to provide the necessary tube extensions to ensure the TZ-4 reaches focus.
    Many thanks for your help.

    Answer rated: 1
    This depends on the weight which you are going to attach to the Telecentric.

    The TZ4 provides a T-thread on the camera side and a 2" nosepiece on the telecope side. If this connection is strong enough to keep your accessories in place without flexing, you don't need the M68 Telecompedium. But a simple eyepiece clamp may be to small for a long adapter system like an H-alpha filter with a binoviewer or a heavy camera, so to avoid flexure, there is the M68-system, which can be attached to the focuser with a screw connection (if the focuser provides the matching threads). Then, flexing can only be caused by the focuser – and those with M68-threads are usually designed for heavy equipment.

    If you have problems with flexing, you should give the Telecompendium a try.
    Answer by: Baader Web Team (Admin) on Jun 3, 2020 8:16:00 AM
  118. Rated: 2
    5/28/2020 11:42 PM Baader Wide-T-Ring Sony Alpha and Minolta Maxxum with D52i to T-2 and S52
    I own a sony alpha 900 full frame camera. I have got a normal T2 adapter with a 2" out, and I have noticed some vignetting. I Wonder if using this "Wide versión" would eliminate the vignetting.
    Would I need a different T2 to 2" adapter?
    Also I am going to use a mpcc III coma corrector. Will I need something else to avoid vignetting as well with the corrector?

    Answer rated: 1
    Please check the manual of your camera – Sony uses two different bayonets; if you camera uses the E-bayonet, you need this T-ring:
    Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 und S52 # 2408317

    On its product side, you can see the difference between T-2 and M48:
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/t-rings-wide-and-classic/baader-t-ring-sony-enex-bayonet-with-d52m48-to-t-2.html

    Due to mechanical limitations, on some cameras, the free aperture is still limited to 41mm, while e.g. Canon uses a wider bayonet and offers up to 48mm of free aperture. To maximise the free diameter, you need another 2" nosepiece: 2" / S52 Nosepiece # 2958551

    So, a wide T-ring will remove vignetting as much as possible, but on some camera brands the camera bayonet is the bottleneck, not the T-2-thread. Please check the free aperture of your camera and the corresponding Wide-T-ring for further details.

    Please also check the complete optical length – the Wide-T-rings do not all provide the standard T-2-flange distance of 55mm, so you may need some spacers. (This was done to make them work with configurations where you need to fight for every millimeter.) You can see the differences by comparing their optical length to that of the standadr T-ring, the data is given in the technical data of each T-ring.
    Answer by: Baader Web Team (Admin) on May 29, 2020 10:31:00 AM
  119. Rated: 0
    5/28/2020 10:59 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    I am interested on 2" MPCC Mark III Coma corrector, but I have a Sony Alpha 900 Full Frame camera. Even though I understand I can use it "as it comes" with some vignetting, I wonder what else would I need in order to fit it not with the normal T2 but with the 48mm option to get (supposely) full coverage.
    I have seen that the T2 adapter I already have include something very similar to this (https://www.baader-planetarium.com/en/baader-m48-spacer-ring-for-mpcc-iii--protective-eos-t-ring.html), so I wonder if I can just use the T2 adapter I have without that, or if I would need a different one, for example "Baader Wide-T-Ring Sony Alpha and Minolta Maxxum with D52i to T-2 and S52" (not sure if this is the one I have)
    I am afraid once I have ordered the corrector I might end up needing something else...

    Answer rated: 2
    This will probably not work, because the diameters of the insets of T-rings are not standardized – the adapter ring will probably not fit into your existing T-ring.

    Vignetting which is caused by the T-thread (M42x0.75) can be removed with a Wide-T-Ring, but it may also be caused by the camera bayonet, so please check if a wider T-ring will actually be of use, or if the camera is the problem.

    Please also note that Sony uses two bayonets, one is compatible with Minolta and the other one is the E-bayonet.
    Answer by: Baader Web Team (Admin) on May 29, 2020 10:49:00 AM
  120. Rated: 1
    5/27/2020 8:10 PM Baader 2" ClickLock Diagonal Mirror
    Will it work for deepsky use?

    Answer rated: 2
    Yes of course, many of our customer use this mirror not only for solar observation but also for deepsky.
    More information on our prisms and mirrors can be found here: https://www.baader-planetarium.com/en/downloads/dl/file/id/1617/product/1687/baader_star_diagonals_t_2_and_2.pdf
    Answer by: Baader Web Team (Admin) on May 28, 2020 8:34:00 AM
  121. Rated: -1
    5/27/2020 5:04 AM Baader Sky Surfer V (Night & Day Design) Red-Dot-Finder
    What is the thread size on the alt-azimuth adjusting screws? I find it cumbersome using to use a coin or screwdriver in the dark to make the adjustments and would like to replace them with something that can be turned without a too. But I don't know what is the proper thread size.

    Answer rated: 0
    We are sorry - this is another reminiscence concerning the origin of this product. This product was once meant to be used on a gun - and be adjusted one time.
    Hence the set screws are "well hidden" and only accessible w. some effort. At this time we have not changed this part of the design and we do not have any replacement av. for this thread.
    However - we are thankful for this piece of kind criticism and will try to address this with future productions - however - the next one is already in the makes.
    Answer by: Baader Web Team (Admin) on May 27, 2020 3:43:00 PM
  122. Rated: -2
    5/25/2020 6:41 PM M68 to 2" UNFi Conversion Ring
    do you know if my TS Optics Photoline reducer/corrector 0,79x, 2" would fit in to your M68 to 2" UNFI Conversion ring?
    I also don't know what UNFI stands for.
    Thank you!

    Answer rated: 2
    If your corrector has got a male SC thread, it should fit without problems.
    The "i" in UNFi stands for internal or female thread, and UNF is the thread standard. This thread may be better known as 2" SC-thread, as it is the standard thread used on the smaller Schmidt-Cassegrains.
    If you need a male thread, there is also Baader 2"/2" Inverter Ring with 48mm filter thread # 1508020
    Answer by: Baader Web Team (Admin) on May 26, 2020 10:29:00 AM
  123. Rated: 1
    5/24/2020 6:07 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Do you have an M117x1 adapter for the 2" BDS-RT focuser?
    This is to go onto a 10" GSO RC telescope.
    Also, what is the thread type on the back (the mount thread)?
    Thank you.

    Answer rated: 1
    Actually this focuser is made to use on a refractor telescope. The inner tube of this focuser has a diameter 63mm so please check if it can intrude
    your OTA. A drawing of this focuser you can see here:
    https://www.baader-planetarium.com/de/downloads/dl/file/id/28/product/2858/bds_rt_dimensions_technical_drawing.pdf
    At the time we don´t have an adapter to direct mount the focuser to M117. Please contact your dealer from where you bought the OTA to find an
    adapter - so far I can see several adapter are already available at TS.

    Usually this focuser will be used with cassegrain type telescopes:
    https://www.baader-planetarium.com/en/accessories/telescope-accessories/focusers/baader/2%22-bds-sc-baader-diamond-steeltrack.html
    https://www.baader-planetarium.com/en/downloads/dl/file/id/29/product/2856/bds_sc_dimensions_technical_drawing.pdf
    Answer by: Baader Web Team (Admin) on May 25, 2020 9:15:00 AM
  124. Rated: 1
    5/21/2020 11:12 PM Baader 2"/M68/3.3" Ultrashort 2" clamp for C11/C14/Meade SC´s
    The description says this is the same as 2458196 + 2408145. I already have 2956233 (ClickLock clamp for 3.3" SCL), which I think includes the 3.3" nut (2408145), but I don't see how to attach the ultrashort clamp (2458196) to the nut (2408145) when purchased separately, because the nut has a dovetail connection and the clamp has a threaded connection. Is there another adapter that's needed to attache the two?

    Answer rated: 1
    Unfortunately this was an error in the description which was discovered very recently actually and corrected in the specifications and german description. But apparently we forgot to change the english description. The description has now been updated with the following text, hopefully this clears it up. Sorry for the inconvenience! Here is the text:

    Please Note: The Ultrashort clamp installed in this adapter #2458197 is not identical to the Ultrashort 2" Eyepiece clamp M68 / M60 (#2458196) which is available separately. The adapter #2458197 uses an older type of clamp #2458196, which can be recognized by the fact that it has only two knurled screws, while the individually available clamp has three screws. In contrast to the M60 thread of the #2458196 adapter, the older clamp used here has a ring dovetail on the telescopic side to accept the included 3.3" connection thread (T-2 component #18) (#2408145)
    Answer by: Baader Web Team (Admin) on May 25, 2020 11:43:00 AM
  125. Rated: 1
    5/21/2020 11:04 PM Baader UFC T-2 (m) Camera-Adapter (optical height: 2 mm)
    Is there a version of this with female thread? My camera, when configured for 6.5mm back focus, has male thread. Adding an f-to-f adapter on top of this one puts me over the max back focus.

    Answer rated: -2
    Unfortunately no - it has been standard for decades that a camera has got a female T-thread. Only recently, the first manufacturer has started to put male T-threads onto the cameras. At the moment, we don't have a female, camera-sided UFC-adapter.
    Answer by: Baader Web Team (Admin) on May 23, 2020 1:03:00 PM
  126. Rated: -1
    5/21/2020 2:29 AM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    OK, A bit confused re the products I need.
    I wish to connect my Nikon Z6 to my Astro-Physics 130 GT, with the 2.7" focuser. I have purchased the Wide T ring for the Z camera, as well as the universal filter changer. I am not using a reducer or field flattener. What else do I need to purchase?

    Answer rated: 0
    You need a matching camera-sided adapter ("back plate") for the UFC; there are several options

    The best would be
    Baader UFC S52 dovetail camera-adapter #2459119
    which fits directly to the Wide T-Ring, if you remove the T-2-inset from the Wide-T-Ring (there should be an Allen key included with the T-ring to do this). This gives you the widest free aperture and a permanent connection to the UFC, so it's probably the best if you attach the UFC to your telescope with a 2" nosepiece.

    If you prefer a screw-coupling, you can also replace the T-2-inset of the Wide-T-ring with the optional
    Reducing piece S52 / M48 # 2958552
    and combine it with
    Baader UFC M48 (m) Camera-Adapter # 2459116
    This lets you use the full diameter of a 2" nosepiece or filter, and you can easily unscrew the camera from the filter holder

    Otherwise, you can use the
    Baader UFC T-2 (m) Camera-Adapter # 2459115
    for a screw-coupling.
    This is the standard solution as it was used for years, but you are limited to about 40mm of clear aperture because of the T-2-thread – so, if you use a full frame camera, there will be some vignetting at the edges. It's fine for APS-C and smaller sensors.

    Answer by: Baader Web Team (Admin) on May 23, 2020 12:17:00 PM
  127. Rated: 2
    5/20/2020 9:14 PM Baader Color Filter-Set Moon and Planetary (6 colors)
    Does the 2" Filter Set (2458310) come with six of your stackable filter cases (2459253)? The picture of the set on your website shows non-stackable clamshell cases which may just be an old photo. I just want to me sure if I order the set from USA distributor Alpine Astronomical (SKU: FCFS-2) that it will come with the stackable filterboxes. Thanks!

    Answer rated: 2
    Yes, the 2" filter set does come with our stackable filter cases. It is correct that the picture on our website was outdated, apologies. We have removed it from the product page.
    Answer by: Baader Web Team (Admin) on May 25, 2020 1:27:00 PM
  128. Rated: 0
    5/19/2020 6:56 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Is the center hold 3/8" thread?

    Answer rated: -1
    It is a standart metric M10 thread.
    Answer by: Baader Web Team (Admin) on May 20, 2020 4:45:00 PM
  129. Rated: -1
    5/19/2020 6:48 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Will this adapter work with the Celestron Evolution tripod? Just wanted to be sure. I wasn't sure if "Evo" in the description was short for "Evolution."

    Answer rated: 1
    No, it is meant that you can set this adapter on a Baader T-Pod tripod or Baader Short Pillar III with Universal Base-Ring. With this flange you can
    find an alternate to the original Celestron Evolution tripod.
    Answer by: Baader Web Team (Admin) on May 20, 2020 4:49:00 PM
  130. Rated: 0
    5/13/2020 6:19 PM Baader U-Venus-Filter (350nm)
    Hello, what's the actual size of your 1(1/4)" filters in "mm"?
    I have a Samsung lens 20-50mm, that is a 40,5mm. Can I use this filter size our I need a adapter? If I need a adapter... What adapter is suggested for this lens? Thank you.

    Answer rated: 3
    There is no standard for 1.25"-filters, common threads are
    M 28,5 x 0,50mm
    M 28,5 x 0,60mm
    1 1/8 Zoll x 40 GpZ
    We have designed our filter cells to work with almost any eyepieces and filter holders, so while the thread diameter is 28,5mm, the thread is something special.

    We do not have an adapter for 1.25" filters to camera threads, only for 2" filters, as the smaller filters are too small for most cameras. There, you need
    #2408166 Baader DSLR 2" Filter-Holder M48 / SP54: https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html
    This fits to the M54-filter thread of camera lenses.
    Based on the SP54 thread, we offer many more adapters for various camera threads, our so-called Hyperion DT-rings. https://www.baader-planetarium.com/en/catalogsearch/result/?q=sp54

    Answer by: Baader Web Team (Admin) on May 18, 2020 11:00:00 PM
  131. Rated: 2
    5/13/2020 10:59 AM Baader 8mm Hyperion 68° Modular Eyepiece
    I have a Celestron Regal M2 80 mm spotting scope and was interested in buying some fixed focal length eyepieces to add to my original Celestron zoom eyepiece.

    I read on the Baader-Planetarium.com website that some spotting scopes have difficulty getting infinity focus with your Baader Hyperion eyepieces and therefore, with your 8-24 mm zoom eyepiece, additional (spacer ) rings are provided to achieve this.

    The website specifically refers to Celestron Ultima spotting scopes. Do you know if this is also the same with Celestron Regal scopes or not?

    If it is, can these rings [a] be purchased and [b] will they fit on your other Baader Hyperion eyepieces?

    I was specifically interested in the Baader Hyperion 68 degrees 8 mm and the Baader 31/36 mm Hyperion Aspheric eyepieces.

    Answer rated: 1
    Astronomical eyepieces have to come close to a spotting scope. The Hyperion Zoom Mark IV is designed to be compact enough, so these rings shorten the body of the eyepiece. Unfortunately, they only fit onto the Hyperion Zoom Mark IV.

    The Hyperion Aspheric (31 and 36mm) will not work with any spotting scope as their 1.25"-adapter is too long. The 8mm will work without any problems (as well as all HYperions except the 5mm and the discontinued 3.5mm), but it provides the same magnification as the original eyepiece from Celestron. The 5mm will probably not work, at least it doesn't work with the Zeiss Diascope spotting scopes.

    On the other hand, all our newer eyepiece lines (the Morpheus and the Classic Ortho/Plössl) will work with your spotting scope out of the box.
    Answer by: Baader Web Team (Admin) on May 13, 2020 4:16:00 PM
  132. Rated: 0
    5/11/2020 2:36 PM Baader Takahashi Mewlon Aux-Adapter M71/M72 to fit #2558230
    I need an M72 inverter. I have an M72 female thread that needs to be an M72 male thread to mount my accessory. Can you help. I only see M72 to M68 which doesn't help me.

    Answer rated: 0
    I'm sorry, but we don't have such an adapter.
    Answer by: Baader Web Team (Admin) on May 12, 2020 10:27:00 PM
  133. Rated: -3
    5/10/2020 7:29 PM Microstage II Digiscoping Adapter
    I have a Sony RX100 VI (mk6) I’m trying to digiscope on a Celestron Regal m2 65ed. I believe the regal has a T2 adapter. Will this work?

    Answer rated: 3
    Unfortunately, as far as we can see, the Sony RX is a compact camera, where you can neither remove the lens nor use a filter thread. So, there is no chance to attach it to a T-thread.

    But you can use the Baader Microstage II Digiscoping Adapter # 2450330 for compact cameras, which doesn't use the T-thread, instead it clamps onto the sides of the eyepiece.
    Answer by: Baader Web Team (Admin) on May 11, 2020 1:50:00 PM
  134. Rated: 0
    5/8/2020 8:42 AM BCF 2 - DSLR Astro Conversion Filter for Canon Full-Format Cameras (all latest Models)
    I really need a bcf filter 4ea for canon 6d, can I get it?

    Answer rated: 0
    Unfortunately this filter is not available anymore. We are very sorry.
    Answer by: Baader Web Team (Admin) on May 11, 2020 11:50:00 AM
  135. Rated: -1
    5/6/2020 9:45 PM Baader U-Venus-Filter (350nm)
    How it is possible/which filter holder should I buy to mount 2" Baader filters (U Venuse filter, UV/IR cut filter) onto DLSR camera lenses with the diameter of 49 mm and 52 mm (Canon), please?

    Answer rated: 2
    This is possible with the following items:
    - Baader DSLR-2" Filter Holder M48/SP54 # 2408166
    - Baader Hyperion DT-Ring SP54/M49 for DTAdapter II&III and Hyperion Eyepieces # 2958049
    - Baader Hyperion DT-Ring SP54/M52 for DTAdapter II&III and Hyperion Eyepieces # 2958052

    The first adapter provides an SP54-thread, from which you can find adapters for most lens threads at https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/dt-rings.html
    Answer by: Baader Web Team (Admin) on May 7, 2020 9:33:00 AM
  136. Rated: 0
    5/1/2020 3:59 PM Baader 2" Cool-Ceramic Safety Herschel Prism (Visual / Photographic)
    Hi,
    I'm interested in the Herschel Prism 2" Photographic Version.
    I would use on a Takahashi FS-60Q refractor : what kind of adaptator I should use in order to connect the prism on it ?
    The Taka FS60-CB has M56 right at the end of the tube, and has also an extension tube with M52 at the end.
    Cheers,
    Olivier

    Answer rated: 0
    Hello Olivier Dexheimer,

    by using our 2" #2956255 M56i x 0,75-ClickLock you will get the most stable and versatile connection we can imagine.

    Best Regards,
    Baader Web Team
    Answer by: Baader Web Team (Admin) on May 4, 2020 10:18:00 AM
  137. Rated: -3
    5/1/2020 1:27 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Would this adapter work on an EQ6 tripod?

    Answer rated: -1
    Unfortunately this does not fit
    Answer by: Baader Web Team (Admin) on May 7, 2020 2:48:00 PM
  138. Rated: -3
    5/1/2020 11:03 AM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Please advise the output shaft diameter (mm) for both sides of the focuser knobs. One shaft is connected to the black colored knob, and the opposite side shaft is connected to the gold colored knob. I can't find the shaft diameters in any of the drawings.
    Thank you

    Answer rated: -3
    At the left side under the black knob the axis has a diameter of 7mm and a machined flat 1mm deep. At the right side under the brass knob the
    diameter is 2,5mm and the machined flat is 0,1mm deep.
    Answer by: Baader Web Team (Admin) on May 8, 2020 10:44:00 AM
  139. Rated: 0
    4/28/2020 6:05 PM 2" Glasspathcorrector® 1,8x for Refractors and SC's
    What difference is there between this 1.8x glasspath corrector for refractors and Sc with the small 1.7x glasspath corrector??
    Thanks.

    Answer rated: -2
    The 2"-GPCs avoid vignetting when used with fast telescopes, where a smaller prism or even a 1.25"-nosepiece may cut off the light path.
    The disadvantage is that you must use the T-2 Maxbright mirror diagonal (#2456100) and can't use different GPCs to achieve different magnifications with only one pair of eyepieces.

    On the other hand, you gain the most back focus – about 80 mm instead of 20-65mm with the smaller GPCs.
    Answer by: Baader Web Team (Admin) on Apr 29, 2020 9:21:00 AM
  140. Rated: 0
    4/28/2020 2:13 PM Baader Prism Diagonal T-2/90° 32mm
    I'd like to know if the diagonal housing for Part #2456005 and #2456095 are the same with respect to the T2/eyepiece side.

    Answer rated: 0
    Yes, both products have the same housing design and are mechanically identical.
    Answer by: Baader Web Team (Admin) on Apr 29, 2020 9:15:00 AM
  141. Rated: 0
    4/27/2020 9:53 PM 2" Glasspathcorrector® 1,8x for Refractors and SC's
    I wanted to ask if the Glasspathcorrector 1.8x for refractors, is it also a field flattener or is it only the glasspathcorrector for Newtons??
    A greeting.

    Answer rated: 2
    As our binoviewers are not made for photography, but for visual observations, the glasspath correctors do not flatten the image – eyepieces are designed to handle curved image planes, so we optimized the GPCs for use with eyepieces.

    The GPC for Newtonians corrects the coma as well as the color aberrations of the prisms inside of the binoviewer, the other GPCs correct onla for the color aberrations.
    Answer by: Baader Web Team (Admin) on Apr 28, 2020 1:59:00 PM
  142. Rated: -1
    4/27/2020 7:47 PM Baader 36mm Hyperion Aspheric 2" Eyepiece
    Is this eyepiece compatible with a Celestron C8HD? An astronomer told me that this piece may not be a good choice for the C8HD's internal corrector.

    Answer rated: -4
    So far, we had no complaints about the EdgeHD and the Hyperion eyepieces. On the contrary, we are often surprised how non-problematic these optical systems are, as many photographers use the telescope with an additional focuser and thus place the camera at wrong distances, and are still happy with the results.

    So, after all that we have seen or heard, there is no problem, and we can – and do – recommend them for the EdgeHD, too.
    Answer by: Baader Web Team (Admin) on Apr 28, 2020 10:05:00 AM
  143. Rated: -5
    4/27/2020 8:16 AM Baader T-2 BBHS ® Mirror Diagonal
    The mirror of the 2456103 diagonal it is mage of ceramic Sitall?
    Regards

    D. Barounis

    Answer rated: -5
    Yes, it is. Please check out also our Overview of Baader Star Diagonals and Prisms:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/1617/product/2871/baader_star_diagonals_t_2_and_2.pdf
    as well as our post on BBHS reflective properties:
    https://www.baader-planetarium.com/en/blog/baader-bbhs-reflective-properties/
    Answer by: Baader Web Team (Admin) on Apr 27, 2020 11:10:00 AM
  144. Rated: 1
    4/26/2020 12:23 AM Baader 2" Cool-Ceramic Safety Herschel Prism (Visual / Photographic)
    Could you please let me know how to use this prism in conjuntion with 1.25" double stack cotinuum + polarizing filter + Maxbright II binos?. Thanks in advance.

    Answer rated: 1
    The basic adaption of our bino-viewers is by replacing the 2" ClickLock of the Herschel with
    Baader Adapter 2" (male) / T-2 (male) # 1508035
    Then you have a T-2-thread, onto which you can mount the binoviewer or the T-2 QuickChanger as described in the manual (page 18 in the manual of the MaxBright II); the 2"-filters of the Herschel wedge fit into the 2"/T-2 adapter. We recommend a T-2 quickhanger, so that you can insert the glasspath correctors for T-2 into the binoviewer; be careful with the 2.6x gpc as it may hit the filters in the Herschel.

    By using the T-2-connection, you can also use
    Baader T-2 Conversion Ring # 2958110 plus
    Baader Double T-Filterholder 1¼" # 1508030
    to mount a 1.25" filter in front of the binoviewer. Again, this may be problematic with the 2.5x gpc as it faces towards the telescope and not into the binoviewer, so make sure that you have enough backfocus.

    Installing a single polarizing filter is tricky, as you can't rotate the binoviewer as easily as an eyepiece. There should be enough place to mount the filter in front of the double stack and use the T-2 quickchanger to access it for adjusting the brightness.
    Answer by: Baader Web Team (Admin) on Apr 28, 2020 12:18:00 PM
  145. Rated: 1
    4/22/2020 12:07 PM 2" Glasspathcorrector® 1,8x for Refractors and SC's
    Could you explain to me what is the difference between 1.8X GPC and 1:1.7X GPC?
    Thank you

    Answer rated: 1
    1.7x is exclusively for Newtonians and has coma correction integrated
    1.8x is for Refractors and SC's only
    Answer by: Baader Web Team (Admin) on Apr 23, 2020 3:10:00 PM
  146. Rated: 0
    4/22/2020 9:38 AM Steel tips for Baader T-Pod Aluminium Tripod
    What is the real diameter of the sharpening in order to understand if it may be used with my tripod?

    Answer rated: 0
    The thread of the steel tips is M10. The widest part of the steel tip itself is a hexagon with a "diameter" of 17 mm. The steel tips end rounded. They are not exactly sharp. The diameter of the rounding is aprox. 2.5 mm.
    Answer by: Baader Web Team (Admin) on Apr 22, 2020 3:48:00 PM
  147. Rated: 3
    4/21/2020 9:37 AM Baader 2" Cool-Ceramic Safety Herschel Prism (Visual / Photographic)
    I wanted to know if the Herschel prism is recommended to use it with a D-ERF filter in front of the lens to prevent heat from entering and protect the tube? or the D-ERF is only recommended for use in H & alpha ??

    Answer rated: 2
    Generally you can use the Herschel Wedge on normal refractors without DERF. The DERF is mainly designed as a prefilter for Halpha telescopes. But in case you want or need to keep the heat out of the OTA you can also combine the Herschel Wedge with an DERF
    Answer by: Baader Web Team (Admin) on Apr 21, 2020 9:57:00 AM
  148. Rated: -2
    4/21/2020 1:32 AM Universal Alan Gee II - Telecompressor (UAG II)
    Can it be used in the Takahashi Mewlon 180c? With Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part # 21). The Mewlon to S / C converter would also be used in the telescope of course.

    Answer rated: 3
    The item was developed for Schmidt Cassegrain Telescopes from Celestron and the optical properties of these telescopes are the basis of its design. At other types of optics the UAG II produces a very clear astigmatism and - there is no way to reach focus
    Answer by: Baader Web Team (Admin) on Apr 21, 2020 11:06:00 AM
  149. Rated: 4
    4/20/2020 9:59 PM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    #2956254 M54a x 1-ClickLock (Skywatcher / Orion)
    I have a Quattro and the manual says this is a 54.5mm x 1 thread. I have verified this by threading a 54mm x 1 accessory on to the scope and it was very loose. What exactly is the threading on your ClickLock?

    Answer rated: 0
    It is known that this thread is made with a big tolerance so we decided to do our adapter with a diameter of 54,2mm. It is always a kind of
    gambling producing accessories for other brands. Hopefully Sky-Watcher won´t change it. Lastly our ClickLock will fit fine.
    Answer by: Baader Web Team (Admin) on Apr 21, 2020 10:19:00 AM
  150. Rated: 0
    4/20/2020 1:59 PM Baader MaxBright® II Binoviewer with case
    I would like to know what is the light transmission of both side of the binoviewer? Do you know how does it compares to Televue or Deinkmeier binoviewer regarding light transmissions?

    Answer rated: 5
    The Maxbright II definitely is on par in transmission with TV- or Denk-binos. We have applied the same optical coatings and beam splitter technology as on the Mark V. We do not endeavor to run into a number competition concerning transmission values and we do NOT try to supersede the exaggerations we see in the Denk-specs. TV is remarkable conservative and we do not claim to be better.

    However - we have worked more than four years on making this product irresistible and we did put all experience from 35 years of making binocular viewers into this latest bino of ours. This is NOT just some astro-modded operation-microscope-bino from Taiwan or China. Our product is the smaller version of the Mark V, were we had bought the design and production drawings from Carl Zeiss Jena 25 years ago.

    We do tender components for our products worldwide and we do the assembly and QI here in house. If you were to read through the manual for this product (see "Downloads" tab) it ought to become obvious that no one else has given it more care to make this as universal in usability as ever possible. The development costs were too huge to fail. We dearly hope people will see this - at the spot - when using this product the first time.
    Answer by: Baader Web Team (Admin) on Apr 20, 2020 2:01:00 PM
  151. Rated: -4
    4/20/2020 1:01 AM Baader Short Pillar III w/o Flange Adapter
    Can it be mounted on the Celestron Heavy Duty CPC 1100 tripod?

    Answer rated: 1
    This item is only for being mounted on our pier and not for tripods
    Answer by: Baader Web Team (Admin) on Apr 20, 2020 11:08:00 AM
  152. Rated: -1
    4/12/2020 2:46 PM Carl Zeiss 1¼" Abbe Barlow lens 2x
    Do you have any transmission information for this barlow in the 300-400nm range? The transmission curve shown suggests a very steep fall off. We wish to offer a 2x barlow for imaging Venus with the U filter and this may or may not be suitable.

    Answer rated: 1
    The transmission in UV is only about 50%.
    Instead we would recommend our Q-Barlow with about 65% transmission:
    https://www.baader-planetarium.com/en/baader-q-barlow-2.25x--1.3x.html
    Answer by: Baader Web Team (Admin) on Apr 14, 2020 9:05:00 AM
  153. Rated: -1
    4/12/2020 3:55 AM Baader UFC 2" (M48) Filter Slider
    What is the purpose of the thin black 'washer' in Baader UFC 2" (M48) Filter Slider? Is it for some filter with thread protruding too much? Or is it for correcting optical path distance?

    Answer rated: 0
    The purpose of these washers is indeed to prevent the thread protruding too much. Below is the original message we published back in 2017 when we got aware of this issue. It is a mistake that none of this information made stayed on the product page, we will fix that asap.

    We regret the fact that some of our cell-mounted 2" filters and those of other manufacturers slightly extend over the back of the 2" (M48) filter slider. Unfortunately, some filter threads from our production actually have a 0.3 mm longer thread. We had tried to provide the maximum optical height for filter holders from other providers - and that unfortunately has gone to our own disadvantage. <br>
    We are currently producing very thin spacer rings, so that our, as well as the filters of other manufacturers can not be threaded in too far. We will be pleased to send you these on request. For the moment, we ask you not to thread the filter completely so that the thread does not overlap.
    Answer by: Baader Web Team (Admin) on Apr 14, 2020 9:25:00 AM
  154. Rated: -1
    4/9/2020 10:23 AM Baader Prism Diagonal T-2/90° 32mm
    On the male side, the diameter of theopening reduces when approching the prism. Can 1.25" eyepieces pass thourgh it and reach the prism?

    Answer rated: 2
    When you have a normal eyepiece from an regular manufacturer - and when you use our T-2 eyepiece clamp - this cannot happen.
    Answer by: Baader Web Team (Admin) on Apr 9, 2020 10:33:00 AM
  155. Rated: 1
    4/6/2020 11:13 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Hi, is there a synta small format (86.4mm) RT adapter available for diamond steeltrack refractor focuser?

    Answer rated: -2
    The small Synta refractors don´t have the necessary backfocus and tube diameter for attaching the Diamond Steeltrack, therefore we have no adaptors created for this size
    Answer by: Baader Web Team (Admin) on Apr 6, 2020 11:38:00 AM
  156. Rated: 0
    4/3/2020 9:48 PM Baader Wide-T-Ring Fujifilm X with D52i to T-2 and S52
    I want to connect my Fujifilm X-H1 to a Meade 70mm Astrograph with the ability to install a filter between the scope and the camera. What parts will I need in addition to this T-ring?
  157. Rated: 4
    3/31/2020 9:03 AM Baader 2" ClickLock Diagonal Mirror
    Can a UFC be inserted between the 2" barrel nosepiece and the diagonal body (point A in this discussion: https://www.baader-planetarium.com/en/blog/optical-tube-lengths-of-clicklock-mirror-diagonal) by using #2459128 and #2459120 for the telescope and camera adapters on the UFC respectively?

    Answer rated: 1
    The parts you mention should work fine to connect the UFC between the diagonal body and the 2" barrel. However, due to the threads, the end position of the UFC cannot be adjusted to your preferation, it might stop at an unfavourable position. We are thinking about developing an Camera-sided UFC adapter with S58 dovetail receptor. This would allow exact positioning to your needs. However it will take months before this product may come to the market.
    Answer by: Baader Web Team (Admin) on Mar 31, 2020 9:55:00 AM
  158. Rated: 1
    3/31/2020 12:29 AM Baader MaxBright® II Binoviewer with case
    I have a Celestron 1100 Edge HD, will this Binoviewer work with that? And if so, what accessories will I need?
    I also have a 70mm SolarMax III. Will I be able to use it with that? Again what accessories will I need?

    Answer rated: 2
    Its hard to answer this question in general. Yes, the MaxBright II Binoviewer will work with an Celestron 11" EdgeHD. But there are many ways to adapt it. Most (if not all) customers will use a Binoviewer on a SC telescope in combination with a star diagonal. There are many different star diagonals available (or even our Baader FlipMirror II) and many possible ways to adapt it. We recommend that you look at our extensive 24-page manual, which illustrates many possible adaptation options and required adapters: https://www.baader-planetarium.com/en/downloads/dl/file/id/1614/product/4317/manual_baader_maxbrightr_ii_binoviewer.pdf

    Furthermore we recommend to take a look at our PDF: Manual and Recommended Use of Baader Star Diagonals (T-2 and 2"):
    https://www.baader-planetarium.com/en/downloads/dl/file/id/1617/product/1687/baader_star_diagonals_t_2_and_2.pdf

    Unfortunately we don't sell the SolarMax III and don't know its thread sizes and most of all the available backfocus (but we strongly assume that it is very much too small). So we cant comment here on required accessories or functionality.
    Answer by: Baader Web Team (Admin) on Apr 2, 2020 2:29:00 PM
  159. Rated: -2
    3/31/2020 12:00 AM Baader H-alpha 7nm CCD Narrowband-Filter
    You state that this filter can be used down to f/2.8. Since I already have one of these filters I wonder if it will be possible to use it with a RASA 8" f/2 that I just bought? What problem may occur and do I really need the ultrafast filter?

    Answer rated: 0
    There will be significantly less signal arriving at the chip area. The exposure times will then be up to 10 times longer - but still so short that it can only be quantified by comparing the signal strength/exposure times with and without filters. A set of real high speed filters will be inevitable. And it is not just a matter of shifting wavelengths. The filter has to be constructed differently from the coating layer arrangement to avoid strong vignetting.
    Answer by: Baader Web Team (Admin) on Apr 2, 2020 10:04:00 AM
  160. Rated: -2
    3/29/2020 12:52 PM Laser Colli - Mark III
    I'm looking for an instruction manual for my baader laser colli mk2.
    Particually the battery's?
    Thanks

    Answer rated: 4
    You can find the instruction manual from the website under <downloads> or direct by this link:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/157/product/1123/adjustment_collimation_of_newtonian_telescopes_with_the_help_of_the_laser_colli_mark_iii.pdf
    On the last page you can see that the Laser Colli needs SR41 batteries, positive side faces out.
    Answer by: Baader Web Team (Admin) on Apr 1, 2020 9:18:00 AM
  161. Rated: -4
    3/25/2020 11:15 PM Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment (T-2 part #08)
    What is optical lightpath length in mm? thank you

    Answer rated: -3
    The optical lightway can be found under the Tab "Specifications". It is adjustable from 32 - 38 mm.
    Answer by: Baader Web Team (Admin) on Mar 26, 2020 9:16:00 AM
  162. Rated: 3
    3/25/2020 1:50 AM Baader FlipMirror II Star Diagonal
    I cannot get the image in the eyepiece to center. I'm using the Baader Focusing Eyepiece holder. I have moved the adjustable T2 ring to its limit, but the image when centered in the camera is at the edge of the field of the eyepiece. Ideas?

    Answer rated: 4
    You probably need to adjust the two brass pins on which the mirror rests in its lower position. This way, you can move the image along the optical axis of the telescope (either closer to the telescope or to the camera).

    To test this, take a look through the eyepiece and move the mirror slightly up - if the star moves in the desired direction (or contrary to it), then you need to adjust the brass pins. Please see page 11 in the manual (chapter 3 - Adjusting the mirror). If it moves sideways instead, things get complicated. But that's most probably the solution.
    Answer by: Baader Web Team (Admin) on Mar 25, 2020 10:58:00 AM
  163. Rated: 0
    3/24/2020 9:15 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    I have a nikon Z6 that I want to use with my Sky-watcher Esprit 100ED Super AP0 telescope that requires 63mm from the 48mm field flattener to the camera Sensor (16mm from sensor to camera lense ring mount on my Z6). I want to use your wide T-ring adapter with your universal filter changer and your 2 in round filters. But for the life of me I can't figure out your system to set up what I need? Can you recommend the components I would need? Thanks,

    Answer rated: -1
    Due to the thickness of the glass, we neeed to add 1/3 of the filterthickness to the backfocus required, which makes it aprox. 63,7 mm. You should keep this in mind when making the calculations later on.

    Since the Field Flattener has a M48 Male thread, you would need the #2459129 Telescope Side Adapter
    https://www.baader-planetarium.com/de/baader-ufc-s70-m48-(w)-adapter-teleskopseitig-m48-gewinde.html

    Next you would need a few spacers which can be calculated by subtracting from the required backfocus, the optical length of the other needed adapters. A list with the calculations and the needed articles is included below. We determined that you would need one 5 mm spacer #2459141
    https://www.baader-planetarium.com/de/baader-ufc-s70-extension-5mm-%E2%80%93-mit-s70-schwalbenschwanz-bzw.-s70--fassung.html

    as well as a VariLock spacer set at 18,4 mm #2459145
    https://www.baader-planetarium.com/de/baader-ufc-s70-varilock-15-20-mm-beidseitig-s70-schwalbenschwanz-bzw.--fassung.html

    Then you would need the UFC Basis #2459110 which has an optical length of 13 mm,
    https://www.baader-planetarium.com/de/baader-ufc-basis-teleskopseitig-s70-schwalbenschwanz.html

    the 2" Filter Slider #2459112 (we suggest one slider for each filter, which makes changing filters faster and more comfortable),
    https://www.baader-planetarium.com/en/baader-ufc-2%22-(m48)-filter-slider.html

    the S52 UFC Camera Adapter #2459119,
    https://www.baader-planetarium.com/en/baader-ufc-s52-dovetail-camera-adapter-(eos--sony).html

    and the Nikon Z Wide T-Ring #2408335.
    https://www.baader-planetarium.com/en/baader-wide-t-ring-nikon-z-with-d52i-to-t-2-and-s52.html

    To represent everything in a more compact way, I'm putting the whole information in a list form below:

    - Article description- -Article number- -Optical length-
    1- M48i UFC Telescope Adapter #2459129 1 mm
    2- S70 UFC Extension Ring 5mm #2459141 5 mm
    3- S70 UFC VariLock 15 - 20 mm #2459145 18,4 mm
    4- UFC Base Filter Chamber #2459110 13 mm
    4a- UFC Filter Slider #2459112 0 mm
    5- S52 Camera dovetail Adapter #2459119 2 mm
    6- Nikon Z Wide T-Ring #2408335 8,3 mm
    7- Nikon Z Flange-to-chip Distance ------------ 16 mm
    _________________________________________________________
    Total optical path: 63,7 mm
    Answer by: Baader Web Team (Admin) on Mar 25, 2020 10:23:00 AM
  164. Rated: 1
    3/22/2020 1:54 AM Baader 24mm Hyperion 68° Eyepiece - Non Variable
    Where can I get replacement dust caps for Hyperion 24mm and 13mm

    Answer rated: 0
    Please ask your dealer were you bought the eyepieces or the distributor in your country. You can find dealers and distributors with our store locator: https://www.baader-planetarium.com/en/storelocator
    Answer by: Baader Web Team (Admin) on Mar 23, 2020 8:54:00 AM
  165. Rated: 2
    3/20/2020 9:33 AM Baader FlipMirror II Star Diagonal
    In order to use the OAG port at the base of the flip mirror, the prism can only go so high before it will hit the mirror when ‘down’. If your connection to the telescope relied on a 1.25” nosepiece rather than a 2” / T2 /M48 connection, would the light ever reach the prism as it would be too low to pick up any light?

    Answer rated: 1
    In its downward position, the mirror has got a length of ca. 2,5cm, so there are only 2-3mm for an autoguider prism. This might just work, but we wouldn't recommend (and be at peace with ourselfes).
    To be honest, autoguiding is usually used for larger sensors which would be obstructed by a 1,25"-focuser anyway, and most focusers which are strong enough for a flip mirror, a camera, a guiding camera and maybe even an eyepiece are 2"-focusers, so we preferred a larger mirror.
    Answer by: Baader Web Team (Admin) on Mar 20, 2020 2:48:00 PM
  166. Rated: 1
    3/16/2020 11:10 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have the Hyperion Universal Zoom Mark IV and wondered if you have an adapter to connect it to a Canon Powershot G9 camera so that I can take afocal photos. Thank you.

    Answer rated: 7
    As far as we can see from the specs which are online, the camera does not have a filter thread to use lens filters, so no direct connection to the eyepiece is possible. May the camera's manual or your photo dealer know if external filters can be used - then we'd need to know the filter thread.

    Without a filter thread, the only option is a camera stage like our Microstage II Digiscoping Adapter # 2450330
    https://www.baader-planetarium.com/de/microstage-ii-digiscoping-adapter.html
    Answer by: Baader Web Team (Admin) on Mar 17, 2020 8:44:00 AM
  167. Rated: 2
    3/12/2020 9:21 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    Can the MPCC be used with the Hyperion Zoom 2.25x Barlow lens for imaging? I can use the Focusing Eyepiece Holder and Varilock combination to connect them, but will this actually work and if so, what length should I set between the MPCC and Barlow?

    Answer rated: -1
    The MPCC is an tool for Deep Sky photography with Newtonian telescopes. It not designed for use with an Barlow lens that you normally use for high power photos or visual observations mainly of Solar System objects. The barlow lens would magnify the middle of the field wich is mostly coma free anyway. We suggest to work with the Hyperion Zoom and Barlow lens and without MPCC.
    Answer by: Baader Web Team (Admin) on Mar 13, 2020 2:40:00 PM
  168. Rated: 0
    3/8/2020 1:18 PM Baader Full-Frame CCD Narrowband-Filterset I (H-alpha 7 / OIII / SII)
    how can you see which side of the filter should go to the telescope in the filterwheel and which side to the camera - unmounted filters 36mm

    Answer rated: 1
    We have this in our FAQ:
    Always put the more reflective side towards the telescope side. To guide you we already put a small arrow on the filter rim, on those filters were the position matters. This arrow indicates which face of the filter should be directed towards the sky (telescope-sided). All cell-mounted filters are already oriented in a way that the most appropriate filter face is facing the sky when the filter would be mounted directly onto the front end of the nosepiece of a camera.
    If you mount your filter the other way, any reflected light would have a short way to the camera sensor, resulting in a higher risk of getting some kind of back-reflections inside the camera field. Many sensors have highly reflective areas near to the light sensitive area, also the area with the bonding contacts is sometimes highly reflective.

    But: this is true only for instruments without optical elements near to the focal plane. If you have f.e. a coma corrector, field flattener, focal reducer, focal extender (to a lower degree due to concave surface), or in extreme cases a whole lens group for more complex field corrections a few centimeters in front of the filter it could be useful to flip the filter against the rule from above (thus having the arrow pointing away from the telescope). Cause in such cases the likelihood of reflections from the sensor could be lesser then fort- and back- reflections from such glass-surfaces. If in doubt, it helps to make some test images from a star field with bright stars, using the filter in both ways for comparison.

    Should you really have some reflections with both positions it can be more effective to add a spacer between filter and camera, eventually shifting the reflection out of the image field. With focal correctors having curved surfaces changing the filter-lens distance could help also.
    Answer by: Baader Web Team (Admin) on Mar 11, 2020 8:25:00 AM
  169. Rated: -2
    3/8/2020 4:43 AM Baader H-alpha 7nm CCD Narrowband-Filter
    I would like to install your 2" H-alpha 7 nm filter in an Astromechanics lens adapter/controller. However, the threads are located at the back of the adapter, and this means that the filter would thread in with the threads on the lens side, and the filter body facing the camera. I think that this is backwards from the way that the filter would be mounted in a typical filter wheel. I think that the orientation should be immaterial, but is that true? Thank you.

    Answer rated: 5
    It shouldn't make any difference, but we always recommend that the more shiny side of the filter faces away from the camera to avoid reflections.
    Answer by: Baader Web Team (Admin) on Mar 11, 2020 10:28:00 AM
  170. Rated: 2
    3/6/2020 9:09 PM Baader T-2 / 90° Baader Roof-Prism with BBHS ® coating (T-2 part #02)
    Will the T-2 Quick Release work with the T-2/90 degree roof-prism with bbhs coating?

    Answer rated: 0
    Yes, the housing has T-2 threads and the T-2 Quick Change System can be used with this diagonal just as shown in this picture:
    https://www.baader-planetarium.com/media/extendware/ewimageopt/media/inline/42/5/tqc-tcr-schwerlast-t-2-schnellwechselsystem-5a4.jpg
    Answer by: Baader Web Team (Admin) on Mar 9, 2020 8:18:00 AM
  171. Rated: 0
    3/3/2020 10:32 AM Optec FocusLynx External Temperature Probe-Kit
    Is this the Optec # 19539-FocusLynx temperature probe kit complete, inkl. cables and adapter kit?

    Answer rated: 0
    The Optec FocusLynx External Temperature Probe-Kit comes with the temperature sensor with 6 pin DIN connector, splitter box, RJ connection cable, velcro strap and adhesive pad. For an image of the items included, please click the following link.

    https://www.optecinc.com/astronomy/catalog/focuslynx/images/19539_005_full.jpg
    Answer by: Baader Web Team (Admin) on Mar 3, 2020 4:37:00 PM
  172. Rated: -4
    3/1/2020 1:55 PM 2" Glasspathcorrector® 1,7x for Newtons incl. T-2 change ring
    What is the optical path length of this gpc?

    Answer rated: 0
    The length of this Item is 92mm. The diameter ist 2" and must be insertet into a 2" focuser completely down to the flange. The focus gain is 80mm
    so with most commercial newtonians you´ll reach focus. A list according the different GPC and focus gain you can find here on page 5 and 10
    https://www.baader-planetarium.com/en/downloads/dl/file/id/433/product/1264/mark_v_gro_feld_giant_binocular_user_manual_12_pager.pdf
    Answer by: Baader Web Team (Admin) on Mar 2, 2020 3:14:00 PM
  173. Rated: -7
    2/29/2020 5:43 AM Hyperion Mark IV Zoom to M54 Kowa TSN 770 / 880 Adapter
    Is it possible tht you can offer an adabter ring for a Optolyth tbs ga hdf 2nd generation M37 x .75?

    Answer rated: -2
    Unfortunately, we do not have a suitable adapter for these spotting scopes, and we are not working on one at the moment.
    Answer by: Baader Web Team (Admin) on Mar 4, 2020 2:58:00 PM
  174. Rated: -3
    2/28/2020 9:07 PM Baader Hyperion DT-Ring SP54/M58 for DTAdapter II&III and Hyperion Eyepieces
    What is the thin ring used for?

    Answer rated: 1
    For some reasons it can be hard to unscrew the adapters so this thin ring helps to decrease the friction for ease unscrewing.
    Answer by: Baader Web Team (Admin) on Mar 2, 2020 11:09:00 AM
  175. Rated: -1
    2/28/2020 5:36 AM Baader Pan 3 "/ EQ Dual clamp 370mm (for Losmandy and Vixen-standard)
    Do you have a hole spacing and hole type diagram for this product that will allow me to assess it for compatibility with my mount? If so, would you be willing to email it to me or alternatively, post it with the item description in your online shop?

    Regards,

    Rob Worrall

    Answer rated: -1
    Thanks for bringing this to our attention. The document you inquire has been available before but due to some error in this system was deactivated. We've brought the hole-pattern diagram back to the Tab "Downloads" on the product page. Here is the direct link to the document: https://www.baader-planetarium.com/de/downloads/dl/file/id/308/product/4522/pan_3_eq_clamp_370mm_dual_mounting.pdf
    Answer by: Baader Web Team (Admin) on Feb 28, 2020 10:10:00 AM
  176. Rated: 1
    2/26/2020 7:27 AM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    I work with a Cambo x2 pro system mounted on my Canon 5ds.
    Now i want to experiment with UV photography so i bought a SCHNEIDER-KREUZNACH COMPONON 60mm f/5.6 ENLARGER LENS which fits on my cambo x2 pro system. I'm not sure where to place the uv-filter, in front of my lens or is it better to place it in front of my body? For example: if i buy a Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2" and put a 2" UV filter in there, does my EF mount cambo fit on the T-Ring or do i have to buy another adapter to do so? I'm a bit lost, can someone help me out? Thanks

    Answer rated: -6
    Der Protective T-Ring hat eine Baulänge von 12mm und ist inclusive Filter (die optisch wirkasame Baulänge verlängert sich, wenn ein Filter in den Strahlengang eingebracht wird, abhängig von der Dicke des Filters) etwas länger als ein Standard T-Ring.
    Wir kennen das Combo-System nicht - es ist schwer zu sagen, ob genug Platz vorhanden ist und dann noch der Fokus erreicht wird.

    Komplett unvorhersagbar ist es, ob durch eine verkippte Linse irgendwelche störenden Reflexionen zwischen Filter und Objektiv auftreten. Zwischen Kamera und Filter ist das kein Problem, und wenn es Reflexe zum Objektiv gibt, sollten sie eigentlich zur Seite hinausgespiegelt werden - falls sie dort nicht auf irgendwelche reflektierenden Flächen im Objektiv treffen. Das müsste ma wirklich ausprobieren...

    Einfacher wäre es wohl, wenn Sie den Filter vor das Objektiv setzen. Wenn es ein Filtergewinde hat, benötigen Sie dazu den
    2" Filterhalter M48 auf SP54 für (D)SLR # 2408166
    Dann steht Ihnen das SP54-Systemgewinde zur Verfügung, und Sie können mit den Hyperion DT-Ringen
    https://www.baader-planetarium.com/de/zubehoer/adapter-foto-zubehoer/kameraadapter/dt-ringe.html
    auf die gängigen Filtergewinde von Kameras (oder andere Step-Up/Down-Ringe) adaptieren.

    Nachteil dieser Adaption: Der Filter sitzt vor dem Objektiv und kann bei Weitwinkel vignettieren. Dafür sind Reflexionen und Abstände kein Problem.
    Answer by: Baader Web Team (Admin) on Feb 26, 2020 9:22:00 AM
  177. Rated: -1
    2/25/2020 12:14 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Does this flange fit with c11 nexstar gps?

    Answer rated: 0
    Yes you can put the NexStar 11 GPS onto this adapter flange too.
    Answer by: Baader Web Team (Admin) on Feb 27, 2020 2:11:00 PM
  178. Rated: -5
    2/21/2020 7:55 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Do you have an adapter for the Explore Scientific ED102 Triplet APO for the Baader Planetarium 2 Inch Steeltrack Crayford?

    Answer rated: 3
    Obviously this telescope you can get in three different versions (Essential Line, Professional Line, High-End Line) with different focusers.
    We don´t know what type do you have. Maybe ask a dealer who is selling this telescope to find out out what thread is in use to connect the
    focuser. So far there are so many different brands and types on the marked we cannot have all informations about. Unfortunately Explore Scientific
    doesn´t offer those necessary data. A data sheet for the Steeltrack you can find here:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/28/product/2858/bds_rt_dimensions_technical_drawing.pdf
    Answer by: Baader Web Team (Admin) on Feb 24, 2020 10:19:00 AM
  179. Rated: 1
    2/19/2020 3:12 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    I have a Scopos TL 805 and I would like to change my eyepiece because I have tilt.
    I would like to have a clarification concerning the fixing of the BDS-RT (# 2957210).
    Indeed, I have contradictory information. In the specifications, I see that the fixing is possible in 88mm dovetail but on this site:
    https://agenaastro.com/baader-2-diamond-steeltrack-refractor-focuser-2957210.html
    72mm dovetail receiver permits 360-degree rotation of focuser with single-screw locking.
    He's talking about a 72mm dovetail.
    Can you clarify this point or offer me a fixing solution?
    cordially

    Answer rated: 3
    The Steeltrack RT has got an 88mm dovetail (S88), on which the telescope adapter is attached to (an S88 to M68 adapter is included). Any adapter which is connected to this dovetail is locked by 6 screws (five headless screws to adkust the tension plus one large locking screw which can be operated manually without tools). If you open the large screw, you can totate the Steeltrack around every adapter which uses the S88 dovetail.

    The Steeltrack doesn't come with a 77mm-dovetail, so I suppose that's just a typo on the website of Agena.
    Answer by: Baader Web Team (Admin) on Feb 20, 2020 8:40:00 AM
  180. Rated: -1
    2/18/2020 6:49 PM Baader MaxBright® II Binoviewer with case
    What is the lightpath length of this binoviewer?

    Answer rated: 6
    The value of 110 mm +/- ca. 1mm (same as in the Mark V) was measured on a refractor. The small error margin of the measurement is caused mainly because of the diopter adjustment. Because of the not-standardized position of the field stop in eyepieces, it is always a good idea to plan with a security margin of some more millimeters.
    Answer by: Baader Web Team (Admin) on Feb 19, 2020 8:53:00 AM
  181. Rated: 0
    2/17/2020 5:30 PM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    I have a Celestron EdgeHD 800 8" SCT and have #2956220 SC / HD (2") - Clicklock.

    Which T Adapter and fully pushes into ClickLock and provides the correct optical path length to use with a Nikon T Mount DSLR?

    Answer rated: 7
    We don´t have a dedicated solution for your request. With the following Items you can get an adaption for your purpose:
    https://www.baader-planetarium.com/en/baader-2%22--t-2-nose-piece-and-camera-adapter-(same-as-used-by-sbig)-(t-2-part-16).html
    https://www.baader-planetarium.com/en/baader-hyperion-2%22-finetuning-stopring-with-brass-clamping-ring-and-2-thumb-screws.html
    https://www.baader-planetarium.com/en/baader-hyperion-finetuning-ring-28.html
    The finetuning ring works as an extender and with the stop ring you can fix the length you need. We recommend using a vernier caliper so you can
    set it to the length of your demand. Please hold in mind that the 2" SC thread from OTA is 10mm long and therefore the optical length of the ClickLock
    is decreasing from 47mm to 37mm.
    Answer by: Baader Web Team (Admin) on Feb 18, 2020 11:11:00 AM
  182. Rated: 2
    2/14/2020 5:07 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    Is it possible to connect the MPCC to a DT RING SP54 /M52 ?
    If yes which intermediate ring should I use.?
    Thank you

    Answer rated: 1
    You can use
    Baader Hyperion DT-Ring SP54/M52 for DTAdapter II&III and Hyperion Eyepieces # 2958052
    to get from SP54(female) to T-2 (female), then you can screw this adapter to the T-2-thread of the MPCC and have a male M52-thread on the camera/eyepiece side of the MPCC.

    But please do not ask about the correct distances for a camera lens, we never tested this under the stars.
    Answer by: Baader Web Team (Admin) on Feb 19, 2020 9:45:00 AM
  183. Rated: -3
    2/11/2020 4:00 PM Baader C-Mount Canon EOS
    I want to attach my Celestron Neximage 10 to my Canon eos lenses. Canon eos cameras optical distance from the back of lens to the sensor is 44mm. The distance of this adapter is 26mm and the back focus of my Neximage is 13.1 mm. Would I need an extension tube 5 mm long to achieve focus? Thank you, David.

    Answer rated: -1
    Yes - even if you might be able to reach focus without the 5mm extension, the sensor would be so far away from the distance for which the lens is designed, that the quality would suffer.
    So, we highly recommend the extension.
    Answer by: Baader Web Team (Admin) on Feb 12, 2020 9:43:00 AM
  184. Rated: 2
    2/10/2020 7:44 PM Baader Short Pillar III w/o Flange Adapter
    What is the recommended weight capacity of the pillar?

    Answer rated: 0
    This depends on the connection to the pillar below. The short pillar itself is made of massive steel, this part itself can easily handle ~100kg of weight, the question is how solidly you are mounting it onto your pillar.
    Answer by: Baader Web Team (Admin) on Feb 11, 2020 12:19:00 PM
  185. Rated: 5
    2/8/2020 7:10 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I want to connect the Hyperion 8-24mm Mark IV zoom to my Nikon D5600. I don't see a specific Nikon T-ring converter. What do I need to connect the eyepiece to my camera? Thank you.

    Answer rated: 4
    We do have four different Nikon T-Rings for different camera models:
    https://www.baader-planetarium.com/en/catalogsearch/result/?q=nikon

    Regarding required extensions, we highly recommend to look at our Digiscoping Instruction Manual:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/0/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Feb 10, 2020 8:45:00 AM
  186. Rated: 2
    2/8/2020 4:58 PM Filter cell 2" Low Profile, 6mm height
    What has to be the maximum and minimum diameter of an unmounted filter in order to properly fit into the filter cell 2" low profile? Is a 50mm diameter filter going to be suitable to be mounted in your 2" filter cell? Thank you.

    Answer rated: 6
    Unfortunately a 50 mm filter will not fit into our cells because the connecting male/female (standard) threads measure 48mm as outer diameter - and consequently the female side must be smaller then that in clear diameter, otherwise filter cells could not be combined. Accordingly the largest glass diameter could be 47.5 mm and the smallest possible size would be 46.5 mm, whereas this already will be problematic because the filter substrate will need some camfer (ground bevel) in order to protect the glass from chipping. So in reality the filter should not be smaller than 47 mm.
    Answer by: Baader Web Team (Admin) on Feb 17, 2020 11:11:00 AM
  187. Rated: 6
    2/7/2020 7:11 PM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    Can the lever position for the Baader Click-Lock M60 (Vixen thread) be adjusted? I don't see any set screws like are on other models.

    Answer rated: 2
    Unfortunately the M60 ClickLock is one of the few where this is not possible
    Answer by: Baader Web Team (Admin) on Feb 10, 2020 8:37:00 AM
  188. Rated: 9
    2/6/2020 6:32 PM Baader UFC (Universal Filter Changer)
    Ich habe kameraseitig den UFC T2 male Adapter, gibt es auch einen UFC T2 female Adapter um auch ZWO Kameras ohne den Umkehrring anschließen zu können? Oder gibt es dafür eine andere Lösung?

    Answer rated: -5
    Diesen Adapter mit Innengewinde führen wir nicht. Das Außengewinde der Kamera würde sonst in die UFC Basis hinein ragen, der Filterschieber
    somit anstoßen.
    Answer by: Baader Web Team (Admin) on Feb 7, 2020 10:02:00 AM
  189. Rated: 1
    2/6/2020 7:03 AM Baader CCD Complete Filterset II (L-RGB-C / H-alpha 7nm / OIII 8.5nm / SII 8nm)
    I use a light sensitive sony A7S system camera for astrophotography. Is this filter set the most suitable/best set for a light sensitve system camera ?

    Answer rated: 0
    RGB-filters are only necessary for monochrome cameras, as they are requires to combine monochrome-images to a colour image.

    S-II might work, but a standard DSLR (without astro-modification) camera is not very sensitive for this part of the spectrum. These narrowband filtersets are better suited for a monochrome camera, as with such a narrowband filters always only a part (for red only every fourth) pixel is used.

    If you aren't in a too light-polluted region, you're better off with a UHC-S or - if you are focussing on planetary nebulae and supernova remnants - maybe an O-III filter. Then you can use the whole sensor at one time.
    Answer by: Baader Web Team (Admin) on Feb 6, 2020 8:21:00 AM
  190. Rated: 3
    2/2/2020 6:00 PM BCF 1 - DSLR Astro Conversion Filter for Canon APS-C Cameras (all latest Models)
    Will this filter fit a Canon 600D? I assume it will but have to ask.

    Answer rated: 0
    Yes, it will fit in a Canon 600D
    Answer by: Baader Web Team (Admin) on Feb 3, 2020 9:17:00 AM
  191. Rated: -1
    1/30/2020 9:57 PM Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    What diagonal would you recommend for a Takahashi TSA-102 (fl 816mm / F/8) a Baader 2" BBHS ® Mirror Diagonal or Baader 2" BBHS ® Prism Diagonal?

    Answer rated: 4
    Both diagonals would fit fine with the Takahashi. Because of the extremely low chromatic dispersion of the TSA the BBHS mirror is matching a bit
    better comparing the prism. However this is talking about nearly nothing but Takahashi owners wants the last percentage of performance.
    Answer by: Baader Web Team (Admin) on Feb 4, 2020 4:06:00 PM
  192. Rated: 0
    1/30/2020 12:59 AM Baader 36mm Hyperion Aspheric 2" Eyepiece
    Is there a small “mistake" with the drawing of the 31mm and 36mm Aspheric Hyperion EPs? Doc: G\Prosp\Baa\Zub\Okulare\Tabelle_Aspheric-Okulare

    They show the reference surface (plane) or focal plane of the EP as being at different points within the same 31mm or 36mm Hypeion Aspheric EP, when it has the 2” adapter exchanged for a 1 1/4” adapter?

    Since I have the lens and know that the 1 1/4” adapter contains no additional optics, I think it’s unlikely that this can vary with the same EP (with the same P/N) in the box zB both focal points (focal references) cannot be for the same EP.

    I have seven Hyperion EPs and have just added another one - the 36mm Aspheric EP. I suspect I will eventually "succumb" and buy the 31mm as well! One thing about all Baader-Planetarium products is the very detailed descriptions and especially the Q&A provided which greatly helps with pre-sales inquiries.

    Simon

    Answer rated: 0
    The drawing can be a little confusing, but it is correct: The reference plane is the part of the eyepiece which sits on top of the eyepiece holder of your telescope (the mechanical stopper), but it is not the position of the focal plane - that is inside of the 2"-barrel. Because the 1.25" barrel is longer, the focal plane is in different distances from the reference plane (the end of the telescope).

    For the 2"-configuration, the distance is the value "E", and for the 1.25"-configuration, it is "F".
    Answer by: Baader Web Team (Admin) on Jan 30, 2020 8:12:00 AM
  193. Rated: 3
    1/29/2020 6:34 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Will this adapter work with the AVX tripod?

    Answer rated: -3
    No, unfortunately the AVX uses a new design for its base, and the flange does not fit.
    Answer by: Baader Web Team (Admin) on Jan 30, 2020 8:48:00 AM
  194. Rated: 2
    1/28/2020 11:25 AM Alan Gee Telecompressor Mark II (T-2 part #20)
    Is it possible to use the telecompressor with a C11 ?
    In that that case is there any adaptator to be used ?
    What if a crayford is used ?

    Answer rated: -6
    As both C14 and C11 also offer the standard 2" SC-thread, the Alan Gee can be used with these telescopes, too (as long as you don't remove the 2" SC thread and only use the larger 3" thread).

    But we are working on a version of the Alan Gee for 2" eyepiece holders like our 2" Clicklock or a regular focuser. We think that it will be available in no lather than early spring (just follow our Newsletter at https://www.baader-planetarium.com/de/newsletter/), it will be more intuitive to use than the regular Alan Gee. This should be the better solution for you as you can easily use it with your 2" focuser.
    Answer by: Baader Web Team (Admin) on Jan 29, 2020 8:53:00 AM
  195. Rated: -5
    1/22/2020 4:40 PM Baader Solar Continuum Filter 1¼" (double stacked)
    With my Baader Solar Continuum Filter 1¼" (double stacked), I get a kind of "double image", both visually and photographically. Is this normal? How could this effect be avoided?

    Do you plan to sell a 2" version?

    Thanks,

    Jesús

    Answer rated: 0
    These "double images" are normal and are caused by the tilt of the two filters. They cannot be avoided and actually are the reason why the filter works so well. We have explained this in more detail on the Important Notes for our (also double-stacked) K-Line Filter. Please check out the following PDF:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/8/product/1399/important_notes_on_the_stacked_k_line_filter.pdf

    As for your second question: A 2" double-stacked Solar Continuum (or K-Line) Filter unfortunately is not possible, because it would require a much larger filter cell than our normal cells.

    Answer by: Baader Web Team (Admin) on Jan 23, 2020 10:55:00 AM
  196. Rated: -1
    1/20/2020 9:43 PM The Original: Baader Planetarium
    I have a Baader Planetarium that is in good working order. However, the little white globe that sits in the center of it (over the little electric bulb) is slightly broken at its base and needs to be replaced. Can you please help me get a replacement little white globe?
    Steve Shackelford
    Professor of Aeronautics
    Mt. San Antonio College
    Walnut, California

    Answer rated: 3
    Thank you for using our Baader Planetarium which we now produce in the 53rd year.
    Unfortunately we only have a few cosmetically imperfect solar caps left from the plastic molded version that we used for long years.
    Today we are using a glass-molded cap, because it is more durable. But this would require to modify the lamp holder of your planetarium - and it would be quite expensive to send the middle part of your planetarium (without the star globe) to us in Germany for doing the modification. So if you were to accept the plastic cap with a few dimples, we could send it to our US-distributor for Baader astronomical products (www.AlpineAstro.com) so that he could send it to you at an economical outlay of altogether US $ 25,-

    Please let us know if this would be acceptible.
    Answer by: Baader Web Team (Admin) on Jan 21, 2020 10:34:00 AM
  197. Rated: 3
    1/15/2020 3:28 PM Baader MaxBright® II Binoviewer with case
    Do I need any additional accessory, that is not included in "MaxBright II Binoviewer with case", to use it with the Stellarvue 90 f7 Raptor Triplet Refractor? Thanks

    Answer rated: 4
    The MaxBright II has two front-connection options:
    1. A female T-2 thread to adapt onto most common photographic equipment
    2. A Zeiss ring-dovetail as it has been established by Carl Zeiss for more than 50 years.

    We will soon publish an extensive manual that shows the multitude of accessories that we recommend to combine with the MB II in order to adapt this onto most every telescope with the shortest possible optical length.

    We cannot equip the MB II with the star diagonal that you certainly would need with your refractor in order to have a convenient way of looking through the telescope, because all users of Newtonian telescopes could not make use of this star diagonal. Accordingly it will be a matter of the customer or the dealer to help finding the appropriate adapters or star diagonals for the telescope in question and most of all, to enable this adaptation without wasting precious backfocus. This is the reason why we have developed a multitude of T-2 prism star diagonals with T-2 threads on both sides. Because you could choose for your refractor whether you want to use a 2" nosepiece to put it in front of the star diagonal or whether you opt for a 1.25" nosepiece.

    So please have a bit more patience until we publish the MB II manual and check our website for star diagonals. Because furthermore we are preparing an extensive document to explain all the differences and benefits of our various star diagonals in exhausted detail, this will also be published within the next month.
    Answer by: Baader Web Team (Admin) on Jan 20, 2020 4:46:00 PM
  198. Rated: -3
    1/14/2020 11:35 PM Baader DSLR-2" Filter Holder M48/SP54
    I would like to know which of your products do I need to attached a U-Venus-Filter 2" on Canon 50mm f1.8 EF Lens (thread size 49mm). Thank you!

    Answer rated: 3
    You need this product where your asking from (2" DSLR Filter Holder #2408166) as well as our Hyperion DT-Ring SP54/M49 #2958049
    https://www.baader-planetarium.com/de/hyperion-dt-ring-sp54m49.html
    Answer by: Baader Web Team (Admin) on Jan 15, 2020 8:19:00 AM
  199. Rated: -1
    1/13/2020 5:29 PM Fluorite Flatfield Converter (FFC) / 3x-8x
    I'm considering Baader FFC for magnifying Venus image through U-Venus filter. Is this better transparency with UV around 350nm wavelength than the other conventional ones such as your VIP 2x barlow.

    Answer rated: 1
    The sharpness performance is definitely better. Only the attenuation through the glass is comparable. In the FFC there are two elements of pure fluorite crystal. This is outstandingly transparent at 350 nm.
    But there are two more elements from regular molten glass also in this lens collection. Therefore the pure amount of "normal" glass is about the same.
    Nevertheless the transmission at 350 nm should be 90%.
    Answer by: Baader Web Team (Admin) on Jan 17, 2020 8:11:00 AM
  200. Rated: 0
    1/12/2020 7:22 PM Baader 2" Amici-erecting-prism 45° with 2" SC-thread and 2"/1¼"-reducer
    Please tell me if Baader 2" Amici 45° Erecting Prism, is suitable for Sky-Watcher Skymax-150 PRO Maksutov-Cassegrain Telescope. Thanks. Best regards.

    Answer rated: 1
    The Sky-Watcher Skymax 150 Pro has a 2" SC thread on the OTA so this Amici prism will fit well.
    Answer by: Baader Web Team (Admin) on Jan 13, 2020 10:57:00 AM
  201. Rated: 0
    1/11/2020 12:10 AM Baader 2" ClickLock M74i x 1 clamp (for Skywatcher Esprit, TS-Optics and Omegon)
    Hi, would this model work with an ONTC Newtonian focuser:
    TS-Optics 2" UNC V-Power?
    Thank you

    Answer rated: 0
    The ClickLock clamp does not fit on the UNC V-Power focuser because the focuser has only a M65 thread outside for which we don´t have
    a ClickLock available.
    Answer by: Baader Web Team (Admin) on Jan 13, 2020 10:07:00 AM
  202. Rated: 4
    1/10/2020 7:43 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have a Nikon D7100. Which adapter do I need to connect the Hyperion Universal Zoom Mark IV, 8-24mm eyepiece to the camera directly (I already have a T-Ring adapter for Nikon). I purchased the Hyperion M43 and DT-Ring DP54 as suggested in the picture with no luck

    Answer rated: 12
    The SP54-thread is inteded to make a connection to the filter thread of a camera lens.

    To attach the camera body directly, you need the Hyperion / Morpheus® T-Adapter M43/T-2 # 2958080

    In addition, you should add two T-2 / 15 mm Extension Tube # 1508154 for an APS-C-camera like the D7100 or one T-2 / 40 mm Extension Tube # 1508153 for full-frame-cameras. Otherwise, the sensor will be too close to the eyepiece, and there will be distortions at the edge of the image.

    Please take a look at the following PDF, where we describe all possible adaptations to the eyepieces:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/3117/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jan 22, 2020 3:38:00 PM
  203. Rated: -1
    1/10/2020 6:01 PM Baader Hyperion Finetuning-Ring, 14 mm
    Can these be used with the 31 mm Aspheric please?

    Answer rated: 8
    Unfortunately this will not work because of different optical design than the other Hyperion eyepieces
    Answer by: Baader Web Team (Admin) on Jan 13, 2020 2:58:00 PM
  204. Rated: 9
    1/6/2020 8:42 PM Baader U-Venus-Filter (350nm)
    What adapter would be needed to have the 2" UV filter work on a 72mm SIGMA 18-300mm lens?

    Answer rated: -5
    Assuming that 72mm is the filter thread size of the objective lens, you will need the following combination of adapters:
    #2408166: Baader DSLR-2" Filter Holder M48/SP54
    https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html
    #2958062: Baader Hyperion DT-Ring SP54/M62
    https://www.baader-planetarium.com/en/baader-hyperion-dt-ring-sp54m62-for-dtadapter-iiandiii-and-hyperion-eyepieces.html
    #2958072: Baader Hyperion Stepper-Ring M62 onto M72
    https://www.baader-planetarium.com/en/baader-hyperion-stepper-ring-m62-onto-m72.html


    Please check out also our "DIGISCOPING"-Brochure with many more information:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1768/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 10:20:00 AM
  205. Rated: 3
    1/4/2020 1:54 PM Baader Neodymium (Moon & Skyglow) Filter
    Waqas already asked similar but few years have passed. I've noticed you have a kind of universal adapter. Basically I want to use this filter with as many lenses I can. But you've stated the thread here is a telescope thread. How should I go about using the filter with my camera lenses? I have step up and down rings from the 80s to the 40s in mm but i suspect they're useless for this thread.

    Answer rated: 5
    The answer provided to the other question is still valid. The most important adapter to use our 2" Filters with camera lenses is our DSLR-2" Filter Holder M48/SP54 (#2408166). https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html
    Based from the SP54 thread, we have lots of Step Up- and Down Adapters, our "Hyperion DT-Rings".

    Please check out also our detailed PDF on Digiscoping:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1769/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 10:52:00 AM
  206. Rated: -1
    1/4/2020 3:26 AM Mark V Großfeld (Giant)-Binocular
    Is a glasspath corrector necessary for use on an SCT to correct color? I plan to use a Mark V on a Celestron 14 and do not want to add more focal length and higher power than the C14 already has. Thankyou for the answer.

    Answer rated: 5
    At f/10, the light path of the telescope is parallel enough that you can usually work without a glasspath corrector, although it may still be interesting to achieve further magnifications.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 8:37:00 AM
  207. Rated: 2
    1/3/2020 3:42 PM VIP 2x modular barlow lens, visual and photographic
    Is the VIP-Barlow indeed compatible with an 2'' Amici diagonal ? if yes, what is/are the model(s) do you suggest ?

    Answer rated: 4
    The VIP Barlow is compatible with any star diagonal, this includes amici prisms. But of course, by doubling the magnification, optical impurities of the optics become more obvious, and most amicis aren't made for magnifications beyond 60-100x.

    So, you should use a high-quality amici prism like
    - Baader 2"/90° Astro Amici-Prism with BBHS ® coating # 2456120
    or
    - Baader T-2 / 90° Baader Roof-Prism with BBHS ® coating (T-2 part #02) # 2456130

    Both are designed for astronomical use and high magnifications. With the T-2/90° prism, you can insert the barlow element into the housing of the prism as shown in the sketch in the description of the VIP-barlow, which saves you some opitical length for a short adaptation. Or you can use it in 1.25"-configuration. If you want to use it with a 2" eyepiece clamp, make sure that it doesn't hit the prism.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 11:38:00 AM
  208. Rated: -3
    1/2/2020 11:16 AM Baader 2"/M68/3.3" Ultrashort 2" clamp for C11/C14/Meade SC´s
    I have C14, T2 star diagonal and Mark5 and wanna use binovewer..
    If I use this ultashort 2inch clamp.. It's likey very inconvinient d.t short visual back..
    How about this clamp and Mark 5 for binoviewing??

    Answer rated: 2
    If you want to increase the distance between eyepiece/binoviewer and the back of the C14 for comfortable viewing, we recommend instead the SCL (3,3")-ClickLock (9¼" HD, 11" SC/HD and 14" SC/HD) #2956233, which also lets you use the complete diameter of the straylight baffle inside of the telescope.

    The Ultrashort clamp is recommended when you have to fight for each mm to get into focus.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 9:30:00 AM
  209. Rated: 6
    1/2/2020 3:27 AM Baader L-RGB CCD-Filterset
    Are the Baader LRGB filter sets parfocal?

    Answer rated: 3
    Yes, all filters of a set have the same thickness (usually 2mm for filters in a filter cell and 3mm for filters withoiut filter cell).
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 3:00:00 PM
  210. Rated: 0
    12/31/2019 2:48 AM Baader Wide-T-Ring Fujifilm X with D52i to T-2 and S52
    In the answer posted above, customers are advised that the Baader Wide-T-Ring Fujifilm X cannot be successfully used with a RASA 8 and a Fujifilm XT camera. However, on September 10, 2019, Team Celestron posted a successful report from SEBASTIAN VOLTMER directly into the Baader blog indicating that the Baader Fujifilm adapter is well suited for use with the RASA 8. Baader Planetarium staff even commented on that blog post. Can we now assume the Baader Fujifilm adapter can be used with the RASA 8? If so, please advise if the universal filter changer can also be used. If it can, please specify exactly which parts are needed to use with Baader f / 2 high-speed filters. Thanks in advance for your assistance.

    Answer rated: 1
    Our Wide T Ring puts the Fuji XT3 26mm away from the sensor, while Celestron has designed the RASA for a distance of 25mm. So, the ring is 1mm too far away and does not work - officially. But as the image of Mr. Voltmer shows (https://www.celestron.de/ce_de/rasa-8-erfahrungsbericht-mit-fujifilm-x-t3-sebastian-voltmer/), it is still inside (or close enough to) the tolerances, so that the Wide T-Ring can actually be used and produce very nice images.

    But unfortunately, there is not enough space to use an additional filter drawer. We are working on a very flat filter holder and tilter for the RASA 8, the Baader FCCT (Filter Changer and Camera Tilter), but it will only work with astronomical cameras which need less backfocus than a DSLR/mirrorless camera. But please remember that there is not much use in using narrowband filters with a colour camera, as then only one fourth of the pixels is used (usually those sensitive for red, while those for green and blue get no signal). For monochrome astronomical cameras, the FCCT will be an interesting solution. We hope that it will be available in spring 2020.
    Answer by: Baader Web Team (Admin) on Jan 8, 2020 3:04:00 PM
  211. Rated: 0
    12/26/2019 7:36 PM MIBAS (Midas Iraf Baader Astronomy Suite)
    We are interested in working with the MIBAS software for use with the BACHES device. While the product page shows that it is intended for use through a virtual machine on Windows computer, we are interested in learning if this can be installed directly onto a LINUX machine, and if so, how would we go about doing this direct install? Thank you for your help!

    Answer rated: 0
    MIBAS is a Fedora linux os with preinstalled and configured MIDAS, IRAF as well as many other useful
    programs for astronomy. IN order to make all those programs work specific versions of compilers and shared libraries
    were configured and modified. Especially pymidas will not work out of the box if you would install it in a standard linux system.
    Therefore we strongly recommend using the virtual machine as is.
    It is possible however to use just the BACHES reduction pipeline within your own MIDAS installation.
    If you wish to do so, please contact us as the official MIDAS release does not contain the latest version of the BACHES specific pipelines.
    Answer by: Baader Web Team (Admin) on Dec 29, 2019 9:59:00 AM
  212. Rated: 0
    12/26/2019 7:16 PM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Could you please let me know if the 3.5nm H-alpha filters would work with APOs in the f/3.6 range?

    Answer rated: 0
    Yes, the filter will work with your insturment.
    Answer by: Baader Web Team (Admin) on Dec 29, 2019 10:17:00 AM
    Answer rated: 0
    Yes. However - an Apo at 3.6 most probably needs a flattener/reducer, positioned quite near to to the image plane. In this case halos (= retro-reflections from these lens surfaces onto the chip) may be unavoidable - regardless of the filter maker.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 9:56:00 AM
  213. Rated: -1
    12/24/2019 10:54 PM Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment (T-2 part #08)
    Hello

    I just bought a Hyperion 2.25x Barlow (A and B bodies included) and a T2-1.25'' adapter with microfocusing.
    I would like to use the Barlow at a lower amplification than nominal 2.25x without screwing/unscrewing the lens cell into the eyepiece barrels.
    What is please the amplification if I will use the Barlow only with the B body + T2-1.25'' adapter ,please ?
    In other words,I intend to use the Barlow without A body.

    Thank you,regards ,Mircea

    Answer rated: -1
    The magnification depends on the distance between the barlow lens and the field plane of the eyepiece, which is usually at the connection between the 1.25" barrel and the wider housing of the eyepiece. You can find the fomula and information about calculation in the following PDF: https://www.baader-planetarium.com/en/downloads/dl/file/id/240/product/1062/calculating_different_magnifications_with_the_vip_barlow.pdf
    These calculations are also valid for other Barlows than the VIP-barlow, for which the PDF was written.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 11:30:00 AM
  214. Rated: 0
    12/23/2019 11:18 PM Baader H-alpha 7nm CCD Narrowband-Filter
    When ordering the 31mm narrowband filters where do I state that I want them unmounted?

    Answer rated: 0
    Please write us an email with your order and special requirements to:
    kontakt@baader-planetarium.de
    We will send you an official quotation about the unmounted filters.
    Answer by: Baader Web Team (Admin) on Dec 29, 2019 10:24:00 AM
  215. Rated: -2
    12/21/2019 2:01 PM Travel Case für NexStar SE 4/5
    Can you give detailed instructions about using the case in English? I bought a case and I’m struggling to put in a 5SE.

    Answer rated: 2
    There isn't much of a manual, but you can see the configuration in this image: https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/96/d/travel-case-fur-nexstar-se-4-5--d1d.jpg

    You may have to open the clamp which connects the mount to the telescope, to move the telescope so that it fits with into the foam. The foam is rather stiff to keep the telescope in its position, but it will take on the form once the telescope is inside of it.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 11:09:00 AM
  216. Rated: -1
    12/21/2019 1:46 PM BCF 2 - DSLR Astro Conversion Filter for Canon Full-Format Cameras (all latest Models)
    What is the optical thickness of this filter?

    Answer rated: 2
    It is the correct thickness for the specified cameras.
    Please understand that we cannot provide the data, because it is our intellectual property.
    Answer by: Baader Web Team (Admin) on Jan 7, 2020 11:20:00 AM
  217. Rated: 0
    12/21/2019 12:03 PM Baader Short Pillar III w/o Flange Adapter
    Is this product suitable for Celestron CGX mounts?

    Answer rated: -1
    To use it with Celestron CGX, you need in addition both
    Universal Base-Ring for Baader Short-Steel-Pillar III # 2451155
    and
    Baader Tripod Adapter Flange for Celestron CGX / CGX-L # 2451118

    Answer by: Baader Web Team (Admin) on Jan 7, 2020 3:05:00 PM
  218. Rated: 4
    12/17/2019 2:16 PM BCF 1 - DSLR Astro Conversion Filter for Canon APS-C Cameras (all latest Models)
    I am going to modify Nikon D5600 for astrophotography and want to replace the stock filter with IR/UV cut filter from Badder. I want to increase the Hydrogen-alpha sensitivity. In your website I only see unmounted filters for Canon bodies. Is there any filter I can use for Nikon APS-C body ? I am fine to cut it to proper size in case your filter size is bigger. May I please request your suggestion on which one to purchase ?


    Thanks & Regards
    Diganta De

    Answer rated: 1
    None of our filters for modifying Canon cameras works for Nikon or Sony cameras. And we do not have other choices of filters to replace the original filter in the cameras of these brands. We are very sorry.
    Answer by: Baader Web Team (Admin) on Dec 17, 2019 2:33:00 PM
  219. Rated: 5
    12/16/2019 11:20 PM Baader f/2 Highspeed-Filters (H-alpha, O-III, S-II)
    for a scope like the skywatcher esprit 100 reduced to F3.58, which narrowband filters do you think would work best ?? the high speed filters vs the 7nm vs 3.5nm filters ?

    Answer rated: 5
    Because of the small aperture and the F 3.58 ration we would recommend 7nm normal filters, not highspeed
    Answer by: Baader Web Team (Admin) on Dec 17, 2019 12:59:00 PM
  220. Rated: -1
    12/16/2019 9:43 PM Baader Wide-T-Ring Canon R (for Canon R bajonet) with D52i to T-2 and S52
    I just ordered the new Canon Ra. I would like to find an M48 ring to screw my corrector on.
    Do you have a compatible ring?
    Is this ring compatible?

    Thank you very much for your reply.

    Answer rated: -1
    For M48 you will need our S52 / M48 adapter #2958552 as mentioned in the product description and images.
    https://www.baader-planetarium.com/en/changer-ring-s52--m48.html
    Answer by: Baader Web Team (Admin) on Dec 17, 2019 8:36:00 AM
  221. Rated: -2
    12/14/2019 2:12 PM Baader UFC (Universal Filter Changer)
    Do you know if is possible adapt a glass path corrector to a Baader maxbright binoviewer?

    Answer rated: 2
    For the glasspath correctors # 2456314, # 2456316, # 2456317, which are mounted inside of the T-2 star diagonal or nose piece, this is no problem, if there is enough back-focus. If you use one of our T-2-star-diagonals (if possible the prism, as it has got the shortest optical length), it is the best if you mount the UFC with T-2-adapters on both sides between star diagonal and telescope. Then you can use the T-2-threads of your star diagonal and its nose-piece.

    To mount the UFC directly in front of the binoviewer, you need the Baader T-2 / 7.5 mm Extension Tube # 1508155. Insert the glasspath corrector into extension tube and place it between UFC and binoviewer.

    For those binoviewers where the glasspath corrector is placed inside of the binoviewer with Zeiss Micro-bayonet (some combinations of MaxBright II and Mark V), just mount the UFC via T-2 in front of binoviewer or star diagonal.

    It is not recommended to use the UFC with the 2" glasspath correctors for Newonians (# 2456300, # 2456301) or SCs & Refractors (# 2456305), because then distances are wrong.
    Answer by: Baader Web Team (Admin) on Dec 16, 2019 8:19:00 AM
  222. Rated: 0
    12/12/2019 10:08 PM Steeldrive II Motor Unit
    Is it possible to operate the Steeldrive II with just ASCOM? I am doing that with the old classic Steeldrive.

    Answer rated: 2
    Yes, the SteelDrive II can be operated via ASCOM for the use in 3rd party programs like MaximDL, APT etc.
    The ASCO Driver is installed together with the SteelGoII software.
    Answer by: Baader Web Team (Admin) on Dec 13, 2019 8:31:00 AM
  223. Rated: 8
    12/12/2019 7:41 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    I've very interested in this product but want to make certain I'm clear on what I would need to use it with my old model C9.25, ZWO ASI1600MM Pro (6.5mm back focus distance), ZWO EFW (20mm thick) and ZWO OAG (16.5mm thick).

    In addition to the Alan Gee & the provided 19mm spacer tubes, I would need:
    BTA T-adapter
    Baader Varilock 29 (at 20mm position)
    Baader Centering ring

    Is that correct?
    Thank you.

    Answer rated: 5
    Yes, you need
    - Centering ring for Alan Gee II Telecompressor # 2454410 to use the Alan Gee at the C925
    - Baader T Adapter (BTA) for SC and MAK Telescopes # 2408160
    - Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool # 2956929 at ca. 20mm

    You can play around a liitle bit with the length of the VariLock to vary the magnification factor, if you want to.
    Answer by: Baader Web Team (Admin) on Dec 16, 2019 12:37:00 PM
  224. Rated: 4
    11/20/2019 1:57 AM BCF 1 - DSLR Astro Conversion Filter for Canon APS-C Cameras (all latest Models)
    Does this filter work for a Canon 4000D?

    Answer rated: -1
    Yes, this will fit
    Answer by: Baader Web Team (Admin) on Nov 26, 2019 2:46:00 PM
  225. Rated: -1
    11/19/2019 5:37 PM
    What is the hole diameter of the 3 central holes down the centre of the clamp?

    Answer rated: 3
    The two outer holes are clearance holes with a diameter of 9 mm. The one in the middle is a 1/4 - 20 UNC thread hole. This is the standard thread used on camera tripods.
    Answer by: Baader Web Team (Admin) on Nov 21, 2019 12:15:00 PM
  226. Rated: -3
    11/18/2019 2:15 PM Fluorite Flatfield Converter (FFC) / 3x-8x
    If I use the FFC with an F/4.5 Newtonian (16") will I also need a coma corrector for imaging on a full frame sensor or can I use the FFC on its own.

    Answer rated: 0
    Because of the > 3x focal lenght extention of the FFC, you will most likely see just some rest of coma at the edges of the field. But if you place an coma corrector and an FFC in a row, the image quality will degrade in the whole field. Therefore its better to use only the FFC without coma corrector
    Answer by: Baader Web Team (Admin) on Nov 18, 2019 3:28:00 PM
  227. Rated: -1
    11/17/2019 8:53 PM BCF 2 - DSLR Astro Conversion Filter for Canon Full-Format Cameras (all latest Models)
    If I modify my dslr with a baader bcf filter inside the sensor, the photos after modification will be only red without any blue or green?Or just more red plus blue and green as before?

    Answer rated: 1
    The Baader BCF is more open in the red part of the spectrum, means all other colours pass the filter plus some more red. This gives "normal" (daylight) photos a pink touch that you can correct in image processing
    Answer by: Baader Web Team (Admin) on Nov 18, 2019 8:48:00 AM
  228. Rated: 5
    11/12/2019 1:20 AM Baader UFC (Universal Filter Changer)
    Will your new upcoming RASA 8 adapter be compatible with 17mm back-focus cameras? Will there be tilt adjustment available for these types of cameras?
    Thanks

    Answer rated: 4
    Yes, this latest addition of the UFC-family - the new RASA 8 / S70 UFC-Adapter (#2459136) which will launch on our website very soon - is compatible with 17 mm back-focus cameras such as ATIK Horizon. The UFC allows to change any kind of filter from 1 1/4" up to 50x50 mm square in front of the RASA 8.

    The only function, that still might be left to desire, is an easier way to reach the front adjustment hex-screws of the RASA 8. Due to the very short backfocus available, it is somewhat difficult to reach these screws and to "tweak" the star sizes in each corner of the image to absolute perfectness.

    So - in order to even reach this goal (exchange filters AND effortlessly adjust the camera tilt), in February latest we will launch a separate product - only produced for the RASA 8: the FCCT (Filter Changer & Camera Tilter). This unit will feature 3D-printed filter sliders and be only able to accept filters in diameters of 31 mm / 36 mm / and 2"(47.4 mm) w/o cell mount. This is a revolution for the RASA 8 since it makes perfect adjustment of all stars in the field a joy. Already now the first imagers are using this solution as prototypes and the results are outstanding, see here: https://www.baader-planetarium.com/en/blog/rasa-8-extreme-images-michael-jaeger-with-ccd-camera-f2-highspeed-filter/
    Answer by: Baader Web Team (Admin) on Nov 13, 2019 4:00:00 PM
    Answer rated: 3
    The RASA 8" UFC-Adapter is now available:
    https://www.baader-planetarium.com/en/baader-ufc-s70-rasa-8-adapter-telescope-sided-with-rasa-thread.html
    Answer by: Baader Web Team (Admin) on Nov 19, 2019 11:42:00 AM
  229. Rated: -5
    11/9/2019 1:17 PM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    Hi,
    I just bought an Explore Scientific 127ED APO FCD-1 2'' R&P focuser (https://www.bresser.de/fr/Astronomie/Telescopes/EXPLORE-SCIENTIFIC-ED-APO-127mm-f-7-5-FCD-1-Alu-2-R-P-Focuser.html)

    What kind of Baader 2" ClickLock eyepiece clamps version should i take ?

    Thanks

    Answer rated: 2
    Bresser is selling this optic with different versions like essential line or proffessional line etc. To be sure please unscrew your 2" clamp and
    take a ruler - it must be 54mm or 63mm diameter. And please take a look at this picture where you can find all data:
    https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/72/3/baader-2-clicklock-eyepiece-clamps-from-t-2-to-41-2df.jpg
    The M54 clamp is #2956263 the M68 is #2956269
    Answer by: Baader Web Team (Admin) on Nov 11, 2019 11:53:00 AM
  230. Rated: 0
    11/6/2019 1:43 PM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    Can the Baader Diamond Steeltrack® (BDS-SC) Focuser for Schmidt–Cassegrains be used with Maksutov–Cassegrains (specifically Orion Optics (UK)'s OMC200 (https://www.orionoptics.co.uk/OMC/omc200maksutovca.html)? If so, I'll order the focuser straight away! Many thanks. – Peter Gill

    Answer rated: -1
    We don´t sell Orion Optics products so please see the technical drawing and compare/check with your telescope if it will fit:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/29/product/2856/bds_sc_dimensions_technical_drawing.pdf
    Answer by: Baader Web Team (Admin) on Nov 6, 2019 3:41:00 PM
  231. Rated: -1
    11/4/2019 10:41 AM Baader UFC M54x0,75 (m) Camera-Adapter (optical height: 2 mm)
    What is the precise specification of the 8 screws that attached this to the filter base? I do not have a micrometer but they look like they might be M2.5. Please can you confirm the spec?

    Answer rated: 1
    The screws are M3x8 - please search also for ISO 10642

    Answer by: Baader Web Team (Admin) on Nov 4, 2019 12:37:00 PM
  232. Rated: -1
    11/1/2019 4:43 PM Baader UFC (Universal Filter Changer)
    What size are the set of 8 screws that secure any of the camera-side adapters to the UFC chamber. Also do you sell spares?

    Answer rated: 3
    The screws that we use are standard M3 x 8 mm Hexagon socket countersunk head cap screws (DIN-EN-ISO 10642). Unfortunately we do not offer spares for these screws, but they are easily found in any hardware store or even in different online retailers like Amazon.
    Answer by: Baader Web Team (Admin) on Nov 12, 2019 12:04:00 PM
  233. Rated: 1
    11/1/2019 12:14 PM Baader 36mm Hyperion Aspheric 2" Eyepiece
    I have bought this eyepiece (2nd hand) and use it on 2 dobson 254/1200 and 355/1600, it produce coma at half of fieldview. Is this eyepiece design for such telescopes???

    Answer rated: 2
    You need a Coma Corrector like our MPCC wich you can screw in the eyepiece. Please look at the manual of the MPCC for this you need to scroll down on the product site to "Downloads" https://www.baader-planetarium.com/en/2%22-mpcc-mark-iii-%28multi-purpose-coma-corrector-for-newtons%29.html
    Answer by: Baader Web Team (Admin) on Nov 4, 2019 9:13:00 AM
  234. Rated: -3
    10/28/2019 10:18 AM Baader MaxBright® II Binoviewer with case
    Please could you tell me what would i need (if i need anything) to make it work on a televue 76 mm refractor ?

    Answer rated: 2
    You need:
    - the backfocus length of your telescope
    - a 2" or 1.25" nosepiece, if you can't use the T-2-thread of binoviewer to connect it to your equipment
    - maybe a star diagonal - we recommend our T-2-prisms because they allow for a very short adaptation and save valuable backfocus
    - probably a glasspat corrector to reach focus - we recommend the 1.25x, as it also removes colour fringes at faster telescopes.

    You need to determine the backfocus of your telescope either from the back of the 1.25" or 2" eyepiece clamp or a T-2-thread, if available. You can do this e.g. by pointing the telescope with fully retracted focuser at the moon. Hold a piece of paper behind it and measure the distance at which you can see a sharp image of the moon - that's the available backfocus. Attach all necessary accessories to the telescope when determining the back focus.

    If you intend to use it with a star diagonal, you have to include this, too. The available backfocus must be longer than that of the binoviewer with all accessories.

    For example, the shortes combination would be
    - 2"/T-2-adapter/nosepiece #2408150, optical length 2,5mm
    - T-2/90° star diagonal #2456005 with 32mm-prism, optical length 35mm
    - MaxBright II Bino in T-2-configuration, optical length ca. 110mm (give or take a little bit for diopter compensation and focal plane of the eyepieces)
    then you need a backfocus of at least 147,5mm.

    Then you can choose a matching glasspath corrector to reach focus, and/or replace the star diagonal. The glasspath correctors save you back focus, but the also increase the magnification by the given factor:
    Glasspathcorrector 1:1,25 for Baader-Binoviewer with T-2 thread (MaxBright II and MaxBright) # 2456314: Backfocus gain 30mm
    Glasspathcorrector 1:1,70 for Baader-Binoviewer with T-2 thread (MaxBright II and MaxBright) # 2456316: Backfocus gain 65mm
    Glasspathcorrector 1:2,60 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright II and Mark V) # 2456317: Backfocus gain 120mm

    So, if you choose the 2.6x corrector, you only need about 28mm of backfocus, but the magnification increases by factor 2.6. We always recommend at least the glasspath corrector 1.25x, because they also remove the colour fringes which are introduced by the prisms inside of the binoviewer at fast telescopes (faster than ca. f/10).

    The glasspath corrector is mounted inside of the star diagonal, our T-2-diagonals are prepared for it. If you use your own star diagonal, you can mount 2"/T-2-adapter #2408150, optical length 2,5mm or Baader Nose piece 1¼" / T-2 (T-2 part #14) # 2458105 in front of the binoviewer and insert the glasspath corrector there.
    Answer by: Baader Web Team (Admin) on Oct 28, 2019 10:38:00 AM
  235. Rated: -2
    10/28/2019 2:59 AM Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
    Do u know which baader adapter fits my Meade 6000 115mm APO triplet refractor?

    Answer rated: 1
    We do not have the specifications for all telescopes available on the market. If there is enough back focus, you can always insert one of the 2"-extensions #2956237 37mm ClickLock extension or #2956247 47mm ClickLock extension into your existing eyepiece clamp.

    Otherwise, we need the specifications of your telescope - does it provide a thread or a dovetail, and can you unscrew your existing clamp? Then you can measure the thread as described here: https://www.baader-planetarium.com/en/blog/clicklock-clamp-for-your-telescope/ Chances are good that we already have a ClickLock with the matching thread.
    Answer by: Baader Web Team (Admin) on Oct 28, 2019 9:31:00 AM
  236. Rated: -3
    10/27/2019 3:54 PM Mounting Block for counterweight shaft M14 Ø16
    What is the distance between the two M6x15mm fixing holes of the mounting block for counterweight ?

    Answer rated: -2
    The distance (center to center) is 40mm.
    Answer by: Baader Web Team (Admin) on Oct 28, 2019 10:20:00 AM
  237. Rated: 1
    10/25/2019 9:04 PM Filter cell 1¼" classic (8mm height)
    What is the internal diameter of the filter cell? I am intending to use these filter cells to house several 25mm OD / 5mm thick filters. Will the smaller filter fit and be secured with the locking ring?

    Answer rated: -1
    Unfortunately, this will not work - the filter cell has got a clear aperture of 26.5mm, so a 25mm-filter would just fall through the filter cell.
    Answer by: Baader Web Team (Admin) on Oct 28, 2019 9:00:00 AM
  238. Rated: 0
    10/24/2019 8:02 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    It is usefull on a Meade LX200 classic 10" f/10? Does it works also as field flattener?

    Answer rated: 5
    You cannot insert the Alan Gee in the baffle tube of the Meade telescope like its possible with a C8. But you can install it with other methods (mounting in front of an mirror or prism or camera) that you find described in the manual in the download section of the product page. Unfortunately the corrected image circle is not big enough for full format
    Answer by: Baader Web Team (Admin) on Oct 25, 2019 3:06:00 PM
  239. Rated: -5
    10/24/2019 5:54 PM Baader UFC 2" FLI Camera-Adapter (optical height: 10 mm)
    Do you have any image about of setup FLI PL 16803 adapter and UFC base for RASA 11"? Regards

    Answer rated: 2
    In the download section of the UFC product page you find a pdf from Christoph Kaltseis about UFC and RASA image train. Its in German but has many photos https://www.baader-planetarium.com/en/downloads/dl/file/id/351/product/3081/rasa_11_und_ufc_celestron_image_train.pdf
    Answer by: Baader Web Team (Admin) on Oct 25, 2019 3:04:00 PM
  240. Rated: -5
    10/23/2019 9:08 AM Baader 2" ClickLock Diagonal Mirror M68 thread (Zeiss)
    I’m considering buying your M68 diagonal as part of a project to widen my optical path. It is clear how to connect this to a refractor that has various MXX connections. I also have a legacy 6 in Celestron SC and am not sure how to connect the M68 diagonal to the 2 in screw. It would be obvious which of your adapters to use if I had eg a 9.25 Edge but the step down to the smaller one on the C6 is not clear. I do not want to use the 2in diagonal.

    Answer rated: -3
    You can equip the standard 2" Clicklock star diagonal with a M68-thread using Baader M55/M68 (Zeiss) Adapter for 2" CL-Stardiagonal # 2956110 (https://www.baader-planetarium.com/en/baader-m55m68-(zeiss)-adapter-for-2%22-cl-stardiagonal.html), but then you still have a 2"-star diagonal basically.

    The M68-star-diagonal hasn't got this simple option for reconfiguration to 2"-SC-thread. But you can use

    - Baader M68 Conversion Ring # 2458195 to change the male M68-thread of the star diagonal to a female thread (https://www.baader-planetarium.com/en/baader-m68-conversion-ring.html)
    - M68 to 2" UNFi Conversion Ring # 2458232 to change the female M68 to female SC-thread (https://www.baader-planetarium.com/en/m68-to-2%22-unfi-conversion-ring.html)
    - Baader 2" NexStar locking ring. # 2458270 as a counter nut to set the orientation of the star diagonal at the telescope (otherwise it would stop wherever the thread ends). https://www.baader-planetarium.com/en/baader-2%22-nexstar-locking-ring..html

    Of, course, this isn't a cheap solution as one more adapter is required, but I'd recommend the NexStar Locking ring whenever you want to screw a star diagonal onto a Schmidt-Cassegrain.
    Answer by: Baader Web Team (Admin) on Oct 23, 2019 9:09:00 AM
  241. Rated: -8
    10/22/2019 7:11 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    Several people have asked about using the M48 thread for use with Nikon F to M48 Mount adapters. You suggest using the EOS adaption which is no use at all. I would like to use the MPCC's M48 with an 8300 CCD system that has a 55mm Back Focus. How critical is the 55mm Back Focus? Would it still provide a sharp flat field for an 8300 sensor (22.5mm diagonal) at 57.5mm??

    Answer rated: 1
    The backfokus tolerance is +/-1mm.

    I'm not sure if I understand your problem correctly - in M48-configuration, the MPCC needs 2mm *more* of back focus. So, if your setup has got 55mm of backfocus, you are too close to the MPCC, at a distance of 52.5mm. By adding 1.5-2mm, you get into the specified distance. You can bridge this gap e.g. with our M48 spacer rings https://www.baader-planetarium.com/en/m48-fine-adjustment-rings-(03--05--1-mm)---aluminium.html in 0.3, 0.5 and 1mm thickness. But more than about .5mm does not work - and this is only possible if the thread of your camera adapter is not recessed. Depending on how well the threads fit to each other, it might be a good idea to secure the camera with the camera strap at the telescope, so that it can't fall down.

    On the other hand, if you have a camera adapter with S52-ring-dovetail, you can try the Baader M48 Spacer Ring for MPCC III / Protective EOS T-Ring # 2458405 - often, you can remove the T-2-thread and access a ring-dovetail.

    But as the Nikon-F-bajonet has got a diameter of only 44mm, which is smaller than the lens of the MPCC and smaller than the sensor of the 8300, you can also use T-2 instead of M48.

    To make full use of the larger diameter of M48 - e.g. for an Off-Axis-Guider or if you have a large camera bajonet - take a look at the RCC I, Rowe Coma Corrector # 2956800 which provides a much larger back focus and is designed to allow for an off-axis-guider between camera and coma corrector.
    Answer by: Baader Web Team (Admin) on Oct 23, 2019 9:32:00 AM
  242. Rated: -1
    10/22/2019 4:24 PM FLI's Color Filter Wheels
    what is the thickness of the unit of the 2" square filter unit with 5 filters
    I need to know extra back focus introduced
    Is there a mechanical drawing online

    Answer rated: 1
    You find the drawings of the filter wheels on http://flicamera.com/cfw/index.html when you click on "Colour wheel specification" and then on the little pdf logo "Download Drawing"
    Answer by: Baader Web Team (Admin) on Oct 23, 2019 9:00:00 AM
  243. Rated: 0
    10/22/2019 1:04 AM Bundle: Hyperion Universal Zoom Mark IV with Hyperion-Barlow 2.25x (8-24mm / 3.6-10.7mm)
    Can Hyperion Universal Zoom be used on a camera together with Hyperion-Barlow 2.25x at once?

    Answer rated: 5
    If you can use the eyepiece with barlow for visual use, there is usually also no problem with attaching a camera. This is mostly a problem with refractor spotting scopes, where you often can't focus to infinity with the Barlow lens.

    Please note that you will achieve a very high magnification and a low f-stop with the Barlow; you can find the formulas for calculating the effective magnifications in this PDF: https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/3117/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Oct 23, 2019 9:03:00 AM
  244. Rated: 2
    10/19/2019 1:52 AM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    I have this item can I use the nosepiece from it with your Nikon wide tring adapter? Do you have an IR cutoff filter that will screw into the nosepiece?

    Answer rated: -1
    The 2"-nosepiece has got the S52-dovetail and fits into our Wide-T-Rings, you just have to remove the T-thread from the Wide-T-ring with an Allen key.

    The UV/IR-Cut-Filter #2459210A fits into the 2"-filter-thread of any standard 2"-nosepiece, including the one of this adapter.
    Answer by: Baader Web Team (Admin) on Oct 21, 2019 8:20:00 AM
  245. Rated: -4
    10/15/2019 8:49 PM Baader UFC (Universal Filter Changer)
    I have an orion ed80cft that I use with a field flattener or a focal reducer. Both are optimized to be placed right after my dslr..would the ufc attach directly to the flattener or reducer (scope side)?
    Also, when attaching to the celestron 6" refractor would I attach the ufc directly to the T-ring and then the dslr?
    In all of these cases I would need to attach a 2" nosepiece o