Most Recent Product Questions
  1. Rated: 0
    5/18/2019 1:55 PM Baader Hyperion DT-Ring SP54/M46 for DTAdapter II&III and Hyperion Eyepieces
    Could you please let me know if this is the correct and only item I would need to mount your 2” filter on a camera lens with a 46mm front thread?

    Answer rated: 0
    You will need this adapter, but in addition also our 2" Filter holder M48/SP54
    https://www.baader-planetarium.com/en/filters/filter-accessories/baader-dslr-2%22-filter-holder-m48sp54.html
    Answer by: Baader Web Team (Admin) on May 20, 2019 8:55:00 AM
  2. Rated: 0
    5/18/2019 12:11 PM Baader H-alpha 35nm CCD Filter
    Hi, Astrograph use these filters as internal ERFs in solar telescopes, tested in refractors up to 152mm. I have been using a 1.25" version in a Vixen 110mm VMC with no issues. I am considering using a 2" in a 180mm Mak. Is there a specification for the watts per square cm on the filter and a specification for the maximum working temperature? I calculate there would be 26W incident on the filter spread across it, with 1.3W transmitted. Andrew.

    Answer rated: 0
    We are NOT RECOMMENDING these filters for solar observation or photography at all! If somebody does this, its on his own risk, it may lead to permanent damage of the eye or the camera/telescope setup. We are warning and recommend not to use these filters as an internal ERF - they are not designed for this use. We have no values for working temperature a.s.o.
    Answer by: Baader Web Team (Admin) on May 20, 2019 12:44:00 PM
  3. Rated: 0
    5/17/2019 9:48 PM Baader Hyperion 68° Eyepiece Set (Starter)
    The recommended distance from the m43 thread on the eyepiece to the sensor on a APS-C DSLR camera is T-Adapter(7.5mm) + 30mm extension + T2-ring(55mm flange-back). By using a 40mm extension instead of a 30mm I get more magnification, but what's most important when doing photography is to minimize the abberations/lense errors as much as possible. Which distance is best for this? 40mm extension or 30 mm extenion?

    Answer rated: 0
    This is an empiric value. You need 40mm of distance to get rid of the distortions at the edges with a full-frame-camera; for APS-C, 30mm are sufficient.

    We did not notice obvious influences on the image quality by increasing the distance/magnifications, only the exposure times get longer when you increase the distance. Of course, if you are close to the resolution limits of the optical system, too much magnification is not helpful, but but as long as you don't exceed the resolution power of your telescope, it should not matter whether you use 30 or 40mm with APS-C.
    Answer by: Baader Web Team (Admin) on May 20, 2019 8:26:00 AM
  4. Rated: 0
    5/17/2019 6:24 AM Baader 2" ClickLock eyepiece clamps
    i have a C8 edge hd 8" sct with baader 2" click lock and I would like to use my nikon d5300 with an adapter, with which to use a filter without using the UFC. What could I buy?

    Answer rated: 0
    The 8" EdgeHD has got a backfocus of 133mm, the SC-Clicklock is 47mm long.
    For an APS-C-camera, you can use T-2-adapters without problems and don't need a larger diameter for the adapters. So, you can use the standard T-ring, which gives you 55mm backfocus for the DSLR.

    To adapt the APS-C-camera to the 8" EdgeHD with a Clicklock, we'd recommend
    - 1x T-Ring Nikon to T-2 # 2408300 (55mm backfocus to the camera sensor)
    - 1x Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool, set to 28.5mm, # 2956929
    - 1x Baader 2" / T-2 Nose Piece and Camera adapter # 2408150 (total length 2,5mm)
    - 1x 2" Clicklock #2956220 (length 47mm, you already have this part)

    This gives you a total length of 133mm without a filter.

    You can screw any filter with a 2" housing into the 2" nosepiece (just like into any eyepiece). The filter will move the focus outwards by ca. 1/3 of its thickness, so a 2mm filter will move the focus about 0.7mm outwards. If you set the Varilock to 29mm, you are within the 8" EdgeHD's specified working distance of 133.35 +/-0.5mm.

    A full-frame camera would require a Wide-T-Ring to make use of the full aperture; for the smallet APS-C, the T-2-combination works fine.
    Answer by: Baader Web Team (Admin) on May 20, 2019 9:07:00 AM
  5. Rated: -1
    5/12/2019 5:02 PM Baader UFC 2" (M48) Filter Slider
    I have a Celestron 8" Edge SCT, Baader 2" filters and a recently acquired Atik Horizon. What UFC components would I need to start with?

    Answer rated: 1
    The C8 EdgeHD has got 133mm backfocus from the SC-thread, the Atik 13mm from the T-2-thread, so we have 120 cm backfocus.

    You need:
    2459128 - 2" UNF-adapter (2" SC-thread) - 1mm length
    2459110 - UFC Filter Changer Base - 13mm length
    2459115 - T2-adapter - 2mm length

    Which gives a remaining backfocus of 104mm. You can use either the UFC-extensions (larger, and bring the filter closer to the camera):
    2x 2459143 - 40mm UFC-extension (=80mm)
    1x 2459141 - 5mm UFC-extension (=5mm)
    1x 2459145 - VariLock, set to 19mm

    Or you use a combination ot T-2-extensions, which would be cheaper, but increase the distance to the camera, e.g.
    2x Baader T-2 / 40 mm Extension Tube (T-2 part #25B) # 1508153 (=80mm)
    1x Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm (T-2 part #25Y) # 2956929 set to 24mm

    In addition, you need filter slider; for mounted 2"-filters
    Baader UFC 2" (M48) Filter Slider # 2459112

    With the VariLock, you can also take in account the focus shift introduced by the filter; add 1/3 of the filter thickness to the length of the setup (e.g. 0.66mm for a 2mm thick filter)
    Answer by: Baader Web Team (Admin) on May 13, 2019 9:17:00 AM
  6. Rated: 0
    5/10/2019 7:23 PM Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment (T-2 part #08)
    My 2.25x zoom Barlow will not fit into this eyepiece holder. What am I doing wrong?

    Answer rated: 0
    If the ClickLock is fully opened (by rotating the larger ring counterclockwise), the Hyperion Zoom Barlow should fit into the Clicklock easily.
    If you look into the Clicklock clamp, you will see too clamping bars - they should vanish completely into the housing when the Clicklock is open. You may have to give them a small push once.
    But you should be able to insert the Barlow or any 1.25" eyepiece at least a little bit into the Clicklock.
    For further advice, we need some more information - can insert it only a little bit into the Clicklock or not at all?
    Answer by: Baader Web Team (Admin) on May 13, 2019 8:52:00 AM
  7. Rated: 0
    5/6/2019 5:13 PM Baader H-alpha 35nm CCD Filter
    Hi, can I use this H-alpha 35nm filter with your solar film to get images of the chromosphere, prominences, filaments etc on the Sun? I would be imaging with a dslr. Thanks.

    Answer rated: 0
    WARNING! This filter is only for Deep Sky imaging! Experiments on the sun are not recommended, this would be dangerous for your your eye! A proper Halpha solar filter for taking photos of prominences and filaments needs to be below 1nm (around 0,8-0,3nm).The 35nm filter is much too open for this and way too bright. Adding an Astrosolar film in front of the telescope will reduce all wavelength, Halpha too, so that you don´t see anything.
    Answer by: Baader Web Team (Admin) on May 7, 2019 9:28:00 AM
  8. Rated: 0
    5/6/2019 3:29 PM Baader M68/S68 Changer to fit Zeiss adapter system (dovetail clamp only)
    Can you please tell me if this will fit over a 39.7 mm circular male dovetail.

    Answer rated: 0
    The inner clear diameter of this item is 61,5mm so it should work. More technical data is to find under the link <specification> at the website.
    Answer by: Baader Web Team (Admin) on May 7, 2019 9:18:00 AM
  9. Rated: 0
    5/5/2019 2:48 AM Baader 2" ClickLock eyepiece clamps
    Are you thinking about making a 70mm (71mm?) Clicklock nosepiece for Planewave telescopes?

    Answer rated: 0
    For Planewave Telescopes we suggest our M68/Securefit Adapter #1323840, which can be mounted directly to Hedrick/IR90 Focusers OR to the Securefit extensions.

    Then you can use our M68 Clicklock #2956268. Make sure you have enough backfocus after the ClickLock. Old 17" and current 20" do not allow for the ClickLock and 2" Diagonal. You wont reach focus.
    If you need NO 2" Diagonal you may need M68 Extensions. In this case we suggest our M68 Adapterset for Planewave which includes various Extensions and the Planewave Adapter.
    Answer by: Baader Web Team (Admin) on May 6, 2019 8:15:00 AM
  10. Rated: 0
    4/29/2019 8:24 PM Baader 5mm Hyperion 68° Modular Eyepiece
    I have a Zeiss Diascope 85T and would like to attach the Baader Planetarium Hyperion 5 mm 1.25" Eyepiece - HYP-5 #2454605 using the Baader Zeiss Diascope Bayonet 1.25" Eyepiece Adapter - DIA-BAYO #2454500. However, your Hyperion eyepieces application examples file (download) does not list HYP-5 as compatible with the Zeiss spotting scope with 1 1/4 inch adapter.
    From your document - Visual Observation:
    The Hyperion 21-/17-13-/8 mm eyepieces may be adapted to the Zeiss spotting scope with the aid of a bayonet-adapter #2454500.
    Can the HPY-5 also be adapted to the Zeiss Diascope 85T with 1 1/4 inch adapter (2554500)?

    Answer rated: 0
    Unfortunately, the 5mm Hyperion (and the old 3.5mm) does not work with the Zeiss Diascope. The eyepiece fits mechanically, but you can't focus to infinity.
    Answer by: Baader Web Team (Admin) on Apr 30, 2019 8:16:00 AM
  11. Rated: 1
    4/28/2019 8:18 AM Steeldrive II motor focuser with Controller
    I own a Diamond Steeldrive 1, with handcontroller, for my 2" BDS-SC Focuser.
    Where do I download the newest drivers, firmware and SteelGo software for this focus motor and handcontroller?
    All I can find on your website is either for the Steeldrive classic, or the Steeldrive II.

    Kind regards
    Anders Lange

    Answer rated: 0
    The Diamond SteelDrive and the SteelDrive for classic Baader focusers are identical apart from the motor unit housing geometry.
    Please download the latest ASCOM drivers from the DOWNLOADS tab.
    Answer by: Baader Web Team (Admin) on Apr 30, 2019 11:01:00 AM
  12. Rated: 0
    4/26/2019 10:48 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    Hi.
    Will it work on a C6? How big is the corrected field at 0.35X? And at 0.59X? Thanks

    Answer rated: -1
    The baffle tube of the C6 is not wide enough to insert the Alan Gee.
    Answer by: Baader Web Team (Admin) on Apr 29, 2019 9:12:00 AM
  13. Rated: 0
    4/26/2019 9:42 PM Baader T-2 BBHS ® Mirror Diagonal

    Answer rated: 0
    1) The mirror diagonal will affect the image the least, as it only reflects the light without changing it. Today, mirrors are the most common star diagonals.
    2) The roof prism will give you an erect, upright image suitable for terrestrial observations. It is one of the very few of its kind which also work at high magnifications. But there is alwaysa slight chance for reflections at the "edge" of the roof because of the optical design of these prisms.
    3) The prism is similar in quality to the mirror, but there may be some colour aberrations in fast telescopes because the light passes through the prism. On the other hand, some lens telescopes were especially designed to work with prisms and delivered best results with prisms. Another benefit of prisms is that they don't require as much back focus as a mirror, that's why we recommend them e.g. for binoviewers.

    For a comparison between mirror and prism, you may also be interested in the comparison at https://www.baader-planetarium.com/de/downloads/dl/file/id/160/product/1244/testreview_mirror_vs_dielectric_vs_prism_diagonal_comparison_w_paolini.pdf
    Answer by: Baader Web Team (Admin) on Apr 29, 2019 8:44:00 AM
  14. Rated: 0
    4/26/2019 9:35 PM Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B)
    I recently purchased a Celestron 8" Edge HD SCT. I would like to change the Celestron supplied setup with secure Baader diagonal and connectors, while remaining to use 1.25" eyepieces. I'm thinking following setup (starting from back of SCT) for visual observations:
    1. Baader # 2958500B - SC / HD Ultra Short T-Adaptor (https://www.baader-planetarium.com/en/baader-sc-ultra-short-t-adaptor-for-c-581114.html)
    2. Any of the Baader T-2 diagonals (https://www.baader-planetarium.com/en/accessories/optical-accessories/prism-and-mirror-star-diagonals.html)
    3. Baader # 2956214 - 2" to 1¼" ClickLock Reducer (https://www.baader-planetarium.com/en/baader-2%22-to-1%C2%BC%22-clicklock-reducer-(t-2-part-15b).html)
    If I'm not mistaken the various items should all connect together via the T-2 threads.
    Is this a good setup?

    Answer rated: 0
    Yes, this combination will work. However, you will either have to open the Ultra Short adaptor to rotate the star diagonal for a comfortable viewing position, or lock it only so much that can still rotate with some pressure (which of course wouldn't be as stable as when you tighten it). So, I'd recommend this mainly for azimuthaly mounted telescopes. On an equatorial mount, the eyepieces moves more, and you will more often want to change its position.

    We'd usually recommend a 2" Clicklock #2956220 for the telescope and a 2" nosepiece #2408150 for the star diagonal, then you can rotate it more easily. This setup would be a little bit longer, but more versatile.
    Answer by: Baader Web Team (Admin) on Apr 29, 2019 8:26:00 AM
  15. Rated: 0
    4/26/2019 1:13 AM Steeldrive II motor focuser with Controller
    The aux output for a dew heater is stated at up to 10w. If I attached a slightly higher rated dew strip (for example 15w) to that output, would it be able to operate safely (albeit limited to a maximum of 10w of power) or would there be a risk of damaging the controller?

    Answer rated: -1
    The AUX power output is fused. The controller would not be damaged beyond repair, but the fuse would have to be replaced.
    This would probably have to be done at our company as it is a small SMD part.
    Answer by: Baader Web Team (Admin) on Apr 26, 2019 9:44:00 AM
  16. Rated: -1
    4/21/2019 7:12 PM Baader UFC (Universal Filter Changer)
    I have a Celestron Edge 800HD with 0.7 reducer and a QHY 163C Camera. What parts will I need to use a 2" filter changer?

    Answer rated: -1
    The QHY163 should have 17,5mm of backfokus, but please verify this in your camera manual as we don't have the camera here.

    The 8" EdgeHD reducer requires a distance of 105mm to the sensor, so we have 87.5mm for the UFC.

    You need:
    2459128 - Adapter for SC-thread of the telescope/reducer - 1mm length
    2459110 - UFC base - 13mm length
    2459115 - T-2-Adapter with male thread, fits into your camera - 2mm length

    For the remaining 71,5mm, you can use several extensions, e.g.
    - Baader UFC S70 Extension 15mm # 2459142
    - Baader UFC S70 Extension 40mm # 2459143
    - Baader UFC S70 VariLock 15-20mm extension # 2459145
    If you set the VariLock to 16.5mm, you should have the perfect distance.

    You can also use the smaller T2-extension tubes and Varilocks instead:
    - Baader T-2 / 40 mm Extension Tube (T-2 part #25B) # 1508153
    - Baader VariLock 46, lockable T-2 ExtensionTube 29-46mm with spanner tool (T-2 part #25V) # 2956946

    It is in general a good idea to keep the filters closer to the camera, so the UFC-extensions should be better that the T-2-extensions - the closer a filter is, the less will optical distortions of the filter be a problem.

    In addition, you need the filter sliders according to your filters:
    - Baader UFC 2" (M48) Filter Slider # 2459112
    - Baader UFC D 50.4 Filter Slider # 2459113
    - Baader UFC 50x50 Filter slider # 2459114
    - Baader UFC D 36 mm AUX-Filter-Holder (requires #2459113) # 2459152
    - Baader UFC 1¼" AUX-Filter-Holder (requires #2459113) # 2459153
    Answer by: Baader Web Team (Admin) on Apr 23, 2019 12:38:00 PM
  17. Rated: 0
    4/21/2019 12:33 PM Steeldrive II motor focuser with Controller
    Does it exist a Linux / Indi driver for Steeldrive II ?

    Answer rated: -1
    Currently there is no linux/INDI driver.

    If you need to control the SteelDrive II on a linux machine,
    we can provide you with the serial command protocol for direct communication with the device.
    Answer by: Baader Web Team (Admin) on Apr 23, 2019 12:23:00 PM
  18. Rated: -1
    4/20/2019 9:23 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Can I use c mount camera to Baader Hyperion Universal Zoom Mark IV. Which adapter I shall select to connect the mark IV to c mount thread camera.

    Answer rated: 0
    Yes, you can - please take a look at page 5 of the PDF https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/3119/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf which we have also linked to in the Downloads section.

    You need
    - Hyperion / Morpheus T-Adapter M43/T-2 #2958080
    - 1" C-Mount T-2 adapter Filterholder #2958520

    And spacers between these two adapters, depending on the size of your sensor and the desired effective focal length. The larger the sensor, the farther away should it be from the eyepiece to avoid distortions at the edge of the image.
    Answer by: Baader Web Team (Admin) on Apr 23, 2019 10:14:00 AM
  19. Rated: 0
    4/19/2019 1:13 AM 1 kg leveling Counterweight
    What are the dimensions of the 1kg counterweight? (2951401)

    Answer rated: -1
    The diameter is ca. 6cm, the height (without screw) ca. 4.6cm
    Answer by: Baader Web Team (Admin) on Apr 23, 2019 11:38:00 AM
  20. Rated: 1
    4/18/2019 3:11 PM 1¼" / M41 Eyepiece-Adapter for Kowa TSN 770 / 880 Spotting Scopes
    1¼" / M41 Eyepiece-Adapter for Kowa TSN 770 / 880 Spotting Scopes
    your first picture of the adapter shows the grub screw visible on inside so will marr the eyepiece barrel, is it because the bronze compression ring has moved ?

    thanks

    Answer rated: 0
    Thank you for your keen eye - the brass ring had indeed moved on the part we used for the photo. If it is in the right position, it covers both locking screws, and nothin will happen to the eyepiece. It can be moved easily into a conveniant position, where both locking screws are covered.
    Answer by: Baader Web Team (Admin) on Apr 23, 2019 11:34:00 AM
  21. Rated: 1
    4/12/2019 2:46 PM Hyperion Zoom 2.25x Barlow lens
    Hello. I initially posted this question regarding the Mark IV zoom eyepiece but should have posted it in connection with the 2.25 Hyperion barlow (which I am now doing).

    I recently purchased both the Hyperion Mark IV zoom and Hyperion 2.25 barlow and have a question regarding set-up.

    While the box for the zoom suggests that the barlow is attached directly to the eyepiece (see caption "thread for Hyperion Barlow" and arrow pointing directly at the eyepiece), the manual (https://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf) indicates at p. 11 that "the barlow is attached onto the 1¼" nosepiece" (i.e. nosepiece between eyepiece and barlow).

    Could you please advise as to the correct set-up? Does it matter one way or the other (my preference would be not using the eyepiece but I am happy to do so if this will improve performance)?

    Many thanks in advance for responding at your very earliest convenience. Your kind assistance is much appreciated.

    David

    Answer rated: 2
    Both ways are possible and work equally good. We recommend to attach the Barlow to the 1.25" nosepiece of the Hyperion Zoom with the Adapter A, because this is more sturdy and also works with all other eyepieces.
    But you can as well remove the 1.25" nosepiece from the Hyperion Zoom if this is better suits your needs. So, both options work equally in regards of optical performance, and you freely chose the mechanical adaption which you like better.
    Answer by: Baader Web Team (Admin) on Apr 15, 2019 10:28:00 AM
  22. Rated: 0
    4/12/2019 2:35 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Hello.

    I recently purchased both the Hyperion Mark IV zoom and Hyperion 2.25 barlow and have a question regarding set-up.

    While the box for the zoom suggests that the barlow is attached directly to the eyepiece (see caption "thread for Hyperion Barlow" and arrow pointing directly at the eyepiece), the manual (https://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf) indicates at p. 11 that "the barlow is attached onto the 1¼" nosepiece" (i.e. nosepiece between eyepiece and barlow).

    Could you please advise as to the correct set-up? Does it matter one way or the other (my preference would be not using the eyepiece but I am happy to do so if this will improve performance)?

    Many thanks in advance for responding at your very earliest convenience. Your kind assistance is much appreciated.

    David

    Answer rated: 1
    Both ways are possible and work equally good. We recommend to attach the Barlow to the 1.25" nosepiece of the Hyperion Zoom with the Adapter A, because this is more sturdy and also works with all other eyepieces.
    But you can as well remove the 1.25" nosepiece from the Hyperion Zoom if this is better suits your needs. So, both options work equally in regards of optical performance, and you freely chose the mechanical adaption which you like better.
    Answer by: Baader Web Team (Admin) on Apr 15, 2019 10:23:00 AM
  23. Rated: -3
    4/10/2019 10:19 PM Baader UFC (Universal Filter Changer)
    Welche Konfiguration muss ich haben für eine CCD ZWO Kamera auf eine Celestron RASA 83 (Wie Starizona Filter Slider - RASA 8 - ZWO Cooled) ?


    Answer rated: -1
    Unsere Lösung um einen UFC an den RASA8 anzuschliessen wird bald verfügbar sein, jedoch noch nicht jetzt (15.Apr.)
    Es können Kameras mit bis zu 13mm Backfokus angeschlossen werden, z.B. ZWO mit abschraubbarer Verlängerung/Umkehrring mit 11mm.
    Vielleicht möchten Sie unseren Newsletter abbonieren um frühzeitig darüber informiert zu werden wenn der UFC für den RASA8 verfügbar ist.
    https://www.celestron.de/en/newsletter/
    Answer by: Baader Web Team (Admin) on Apr 15, 2019 12:18:00 PM
  24. Rated: -1
    4/10/2019 4:01 PM Baader Takahashi Adapter M72/M68 (Zeiss)
    Hello, I need to make connection between Takahashi M72 female thread and Baader BBHS prism diagonal, with shortest possible lightpath. Please suggest which Baader adapter(s) do you recommend to use. Thank you!

    Answer rated: 2
    The shortest adaptioation is probably
    - Takahashi Adapter M72/M68 (Zeiss) # 2558230, optical length 10mm
    - M68 to 2" UNFi Conversion Ring # 2458232 (that's the female SC-thread), optical length 5mm
    - Baader 2"/2" Inverter Ring with 48mm filter thread # 1508020

    Then you just have to remove the 2" nosepiece from the prism and insert the inverter ring, so that you can attach the M68 und the M72 adapters. But please note that this is a fix connection, which you can't easily rotate.

    If you want to rotate it (and can't rotate the whole focuser), you can use in addition
    - Baader M68/S68 Changer to fit Zeiss adapter system (dovetail clamp only) # 2458180
    plus
    - Baader M68/S68 steel change ring to fit Zeiss adapter system (dovetail-ring only) # 2458185
    with a combined length of 25mm.

    Instead, you could also use
    - Takahashi Adapter M72/M68 (Zeiss) # 2558230, optical length 10mm
    - Baader Ultrashort 2" eyepiece clamp # 2458196, optical length 12mm
    and use the prism with its 2" nose piece. Then you can clamp the prism like any standard 2" accessories and rotate it as you like it.
    Answer by: Baader Web Team (Admin) on Apr 15, 2019 10:31:00 AM
  25. Rated: 3
    4/10/2019 4:05 AM Baader 2" ClickLock eyepiece clamps
    Which Baader Clicklocks, adapters/diagonals are usable and or recommended for Takahashi Mewlon 210?

    Answer rated: 1
    First you need this adapters that you have access to a wide range of further accessories by the common M68 Zeiss thread:
    https://www.baader-planetarium.com/en/baader-takahashi-mewlon-aux-adapter-m71m72-to-fit-2558230.html
    https://www.baader-planetarium.com/en/baader-takahashi-adapter-m72m68-(zeiss).html

    Then, for example, you can screw on this Items:
    https://www.baader-planetarium.com/en/baader-2%22-clicklock-eyepiece-clamps.html Item No. #2956268

    An alternate if its back focus critical:
    https://www.baader-planetarium.com/en/baader-ultrashort-2%22-eyepiece-clamp.html

    To be more flexible with this Items you´re able fast from visual to photographical or any other application:
    https://www.baader-planetarium.com/en/baader-m68s68-changer-to-fit-zeiss-adapter-system-(dovetail-clamp-only).html
    https://www.baader-planetarium.com/en/baader-m68s68-steel-change-ring-to-fit-zeiss-adapter-system-(dovetail-ring-only).html
    https://www.baader-planetarium.com/en/baader-2%22-clicklock-diagonal-mirror-m68-thread-(zeiss).html

    But you can change any of our 2" diagonals by unscrew the 2" nose piece and 2"/M55 adapter to put on a M55/M68 adapter:
    https://www.baader-planetarium.com/en/baader-m55m68-(zeiss)-adapter-for-2%22-cl-stardiagonal.html
    If you want to use a BBHS Mirror instead etc.
    Answer by: Baader Web Team (Admin) on Apr 10, 2019 8:24:00 AM
  26. Rated: -2
    4/7/2019 9:47 PM Baader Wide-T-Ring Nikon Z (for Nikon Z bajonet) with D52i to T-2 and S52
    When the Wide T-Ring for Nikon Z is coupled with the 2"/S52 nosepiece, what is the MINIMUM inside diameter of this assemble?

    Answer rated: -1
    The inside diameter is limited by the filter thread of the 2" nosepiece and ca. 47.2mm wide.
    Answer by: Baader Web Team (Admin) on Apr 8, 2019 11:19:00 AM
  27. Rated: 1
    4/5/2019 3:54 AM Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    I have a 1984 Celestron C11 and wish to use one of you Badder diagonals. Can I thread a Celestron focal reducer on to your diagonal or to the Badder adapter that fits my C11?

    Answer rated: 0
    The Celestron 0,63x reducer demands a distance of around 110mm to the sensor. According to this please see this information:
    https://www.baader-planetarium.com/en/blog/optical-tube-lengths-of-clicklock-mirror-diagonal/
    Okay you can screw the reducer onto the tube first then using this locking ring to hold your preffered position mostly "12 o clock":
    https://www.baader-planetarium.com/de/nexstar-locking-ring-2%22.html
    Next you can unscrew the 2" nose piece off the diagonal and screw it on the reducer. Then you can unmount the ClickLock and mount:
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/2-inch-sc-thread/baader-adapter-2%22-(male)--t-2-(male).html
    Supposing 55mm backfocus for DSLR and the shortened diagonal to 71,5mm you can use more or less for astrophotography.

    As you can see this is a lot of effort to realise it so it is much easier using long focal eye pieces for low magnification and take the reducer
    only for astrophotography with a t-adapter like #93633 straight on.
    Answer by: Baader Web Team (Admin) on Apr 5, 2019 8:36:00 AM
  28. Rated: 1
    4/2/2019 11:52 AM Baader 2" ClickLock eyepiece clamps
    Recently purchased a Celestron 8" EdgeHD SCT. Not happy with the standard visual back setup. I'd like to replace it with the Baader ClickLock system. The EdgeHD visual backs are longer than the standard visual backs. Mounted on the base (3.3"?) ring is a tapered, faceted cone, providing additional length. Apparently this is to take advantage of the EdgeHD’s optimum image size which is farther back than the same position for a standard SCT. Three questions:
    1. Do I leave the base ring on the SCT (it's mounted quite tight, I haven't been able to remove it with normal force), and just use the 2" threading? Or do I remove the base ring (with extra force?) and use the 2" Baader ClickLock with 3.3" clamp?
    2. Do I need to compensate for the extra length of the standard setup cone? And if yes, how is this accomplised?
    3. If I want to use the Celestron .7x Focal Reducer for the 800 EdgeHD, I'm assuming this goes between the SCT and the Baader ClickLock?
    Appreciate your feedback. Thanks in advance!

    Answer rated: 0
    First of all, to change accessories, only turn off the visual back by turning the orange anodized cup nut. The slitly bigger black ring on the tube
    is part of it and do not open it! Comparing the classic SCT with backfocus length around ~110mm the EdgeHD model has 133,35mm. When using
    a 2" diagonal the longer optical length of it is compensating the difference. For visual use the optical lengthes are not that important, for
    astrophotographie it is. Okay for visual using the 2956220 ClickLock 2"SC is fine. The 0,7reducer is preffered made to use doing astrophotography,
    for visual use please take eye pieces with longer focal length. Please take a look at this item (sorry german lang. only):
    https://www.celestron.de/ce_de/t-adapter-f%C3%BCr-edgehd-8.html
    Answer by: Baader Web Team (Admin) on Apr 3, 2019 9:42:00 AM
  29. Rated: -1
    3/31/2019 7:14 PM Baader UHC-S / L-Booster-Filter
    Does this filter work as Luminance?

    Answer rated: 0
    You can use this filter as Luminance filter when you fight with light pollution. In other cases, when the sky is very dark and clear, our clear filters are the perfect solution.
    Answer by: Baader Web Team (Admin) on Apr 1, 2019 8:57:00 AM
  30. Rated: 0
    3/31/2019 8:06 AM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    In one of the questions above, you recommend placing the 0.63x reducer/corrector after the Steeltrack focuser. Which adapter would I need to thread the reducer/corrector directly to the Steeltrack focuser?

    Answer rated: 0
    You do refer to to the SC-reducer with SC-thread on the telescope side?

    Unforunately, we do not have a mounting plate with SC-thread, but you have two options:
    1) Baader 2" Safety Kerf nosepiece with 2" filter thread # 2408156 equips the corrector with a 2"-nosepiece, so that you can use it like a 2" eyepiece.

    2) 2"a / M48i Zero-length reducing piece (zero optical length) # 2454834
    plus
    Diamond Steeltrack® M48 Adapter # 2957204
    This option would be more sturdy and shorter, but the free aperture is a little bit smaller, so I wouldn't recommend it for very large sensor sizes.
    Answer by: Baader Web Team (Admin) on Apr 1, 2019 9:01:00 AM
  31. Rated: 0
    3/28/2019 7:16 AM Baader T-Ring Canon EOS UltraShort to T-2
    Do you have a corresponding product for M48 thread (with larger clear aperture and ultrashort optical depth)?

    Answer rated: 0
    The only other product is the "Wide T-Ring" https://www.baader-planetarium.com/en/baader-wide-t-ring-canon-eos-with-d52i-to-t-2-and-s52.html
    wich can be transfered to M48 with this item https://www.baader-planetarium.com/en/changer-ring-s52--m48.html
    Unfortunately its not as short as the Ultrashort T Ring
    Answer by: Baader Web Team (Admin) on Mar 28, 2019 8:34:00 AM
  32. Rated: 0
    3/27/2019 9:35 AM V-Dove Tail Celestron-orange anodized, 345mm, drilled for Celestron 8“ SC / HD
    Would this bar fit onto a 2008/2009 CPC telescope. It has the large quick release finder too and I read there may be problem with clearance?

    Answer rated: 1
    The large finder base is asymmetric so you could set the finder from the 11 o clock position to the 2 o clock position to win space if you get problems by the clearance.
    Answer by: Baader Web Team (Admin) on Mar 27, 2019 10:51:00 AM
  33. Rated: -2
    3/26/2019 12:53 AM Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool (T-2 part #25Y)
    To adapt a ZWO OAG to a Celestron C8 EdgeHD with a 0.7 Focal reducer is a Baader VariLock 29 plus a Baader SC / HD Ultra Short T-Adaptor the best option ?
    Thanks.

    Answer rated: 0
    The best option would be a custom made adapter, if the camera is not too heavy the VariLock29 can work also. Please hold in mind that the
    backfocal length at f/10 is 133,35mm but at f/7 it is 105mm for the C8EdgeHD. To reach both foci maybe this ring will be helpfull because it
    is also a M48 extension ring 28mm long:
    https://www.baader-planetarium.com/en/baader-hyperion-finetuning-ring-28.html


    Answer by: Baader Web Team (Admin) on Mar 26, 2019 9:06:00 AM
  34. Rated: 1
    3/23/2019 12:48 AM Baader Stronghold - Additional set of EQ-clamp brackets
    What is the size of the key for the hex-bolts? I have a good range of metric and imperial Allen keys but none of them are a good fit.

    Answer rated: 0
    The right allen key you need to use for the bolts delivered with the Baader Stronghold EQ clamp brackets is a 5mm allen key.
    Answer by: Baader Web Team (Admin) on Mar 26, 2019 8:32:00 AM
  35. Rated: -1
    3/22/2019 1:54 PM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    Can I confirm that the focuser can be easily rotated to frame a desired field of view? The "specifications" section indicates that it is rotatable, but I see nothing in the instruction manual to indicate how this is achieved.

    Answer rated: 1
    It is possible to rotate the focuser, but its meant to set it one time after mounting onto the tube. It is not meant to do that numerous times.Though
    it is much easier to rotate the camera with a 2" nose piece even up to full format camera with wide T-ring and S52 barrel #2958551
    Answer by: Baader Web Team (Admin) on Mar 22, 2019 3:45:00 PM
  36. Rated: 2
    3/20/2019 4:12 AM Baader K-Line Filter 1¼" (double stacked)
    Hi, will this filter work with an unmodified Sony a6300 camera or do I need a modified sensor to register this wavelength?

    Answer rated: 2
    With an unmodified camera you will have a very dark or no image at all because the filter in front of CCD or CMOS sensors block UV
    Answer by: Baader Web Team (Admin) on Mar 20, 2019 8:43:00 AM
  37. Rated: 1
    3/18/2019 11:38 PM Baader 13mm Hyperion 68° Modular Eyepiece
    Is there a way to determine which lower barrel (1.25" nosepiece) belongs to a particular Hyperion? I have 13mm and 21mm Hyperions. The 21 behaves like a shorter eyepiece, and the 13 seems to have low eye relief. These were not new, so there may have been a mismatch along the way.

    Answer rated: -1
    You can try to stop the time a star is running through the field. Take a star likely around 0° declination at meridian south. At this position a star
    is doing around 4 Minutes for one degree For example, with a 1000mm focal length telescope, you get a magnification of 77 times @13mm EP and see a field of 0,883° and 47,6 times @21mm with a field of 1,46° If you stop the mount and let the star travel through the field of the EP (full diameter) the 13mm should take 3,532 minutes and the 21mm 5,84 minutes.
    Answer by: Baader Web Team (Admin) on Mar 19, 2019 9:07:00 AM
  38. Rated: -1
    3/18/2019 10:15 AM Baader DSLR-2" Filter Holder M48/SP54
    Could you please tell me what products I would need to fit a 2" filter to my Nikon P1000 camera whose lens has may carry a 77 mm filter? Which is also the best solar filter for this camera for taking picture of the sun?

    Answer rated: 0
    You will need following two rings to step-up M77 from the filter-holder
    https://www.baader-planetarium.com/en/baader-hyperion-dt-ring-sp54m62-for-dtadapter-iiandiii-and-hyperion-eyepieces.html
    https://www.baader-planetarium.com/en/baader-hyperion-stepper-ring-m62-onto-m77.html

    Please take a look at this table to find out what AstroSolar filter fits best on your lense:
    https://astrosolar.com/en/download/clamping-range-baader-solar-filters-inner-outer/
    More about solar filters are here: https://astrosolar.com/en/
    Answer by: Baader Web Team (Admin) on Mar 18, 2019 3:40:00 PM
  39. Rated: 0
    3/17/2019 11:03 AM Baader UFC S70 / SP54 (m) Telescope-Adapter (optical height: 1 mm)
    What is SP54 thread compared to M54, and can they interchange??

    Answer rated: 1
    The Special thread 54 has another pitch than the common metric M54 threads. The pitch is 0.7 mm - an approximation of a US-norm of ancient days "step-down rings"- which was quite common. And even then, M54 is not clearly defined - some manufacturers use pitch 0.75, others use pitch 1 mm in order to make their parts unusable for others - it´s a mess.
    Answer by: Baader Web Team (Admin) on Mar 18, 2019 4:01:00 PM
  40. Rated: -1
    3/16/2019 3:53 AM Baader CCD Complete Filterset III (L-RGB-C / H-alpha 35nm / OIII 8.5nm / SII 8nm)
    are these filters parafocal

    Answer rated: 1
    These filters have the same thickness of the glass, they are homofocal. But this does not mean that all telescopes bring all wavelength in the exact same focus point, this is different from telescope to telescope.. So they are parfocal, you should check focus when changing the filter.
    Answer by: Baader Web Team (Admin) on Mar 20, 2019 10:37:00 AM
  41. Rated: -2
    3/15/2019 9:09 AM Baader Hyperion Finetuning-Ring M48, 14 mm
    Does 2958214 Ring work with Hyperion Zoom Mark 4 eyepiece ? And is there anycalculation about focus changes to appear &

    Answer rated: 1
    The Hyperion Zoom Mark IV (all former models too) are not made to open to set the finetuningring inbetween. This ring is only made for the
    regular Hyperion eyepieces with prime focal length. Here you can see all the variations:
    https://www.baader-planetarium.com/de/downloads/dl/file/id/134/product/1208/hyperion_eyepieces_application_examples.pdf
    Answer by: Baader Web Team (Admin) on Mar 15, 2019 9:44:00 AM
  42. Rated: -1
    3/13/2019 7:18 PM Baader UFC S70 VariLock 15-20mm extension
    I could use an adapter like this in conjunction with the UFC to adjust to the exact backfocus/metal back of the Tak 1.01 flattener. Can the adjustment, when optimal back focus is achieved, be locked to prevent accidental drifting?
    And which payload can the mechanism bear without risk of flexure. The equipment behind the Varilock weights about 1 kg

    Answer rated: -1
    The outer block knurled ring locks the distance of the adjusted length. The ring can bear a 1Kg payload easily.

    Answer by: Baader Web Team (Admin) on Mar 26, 2019 8:06:00 AM
  43. Rated: -2
    3/11/2019 9:26 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Does the S58 dovetail mean that the steeltrack effectively has a rotator built in? I mean, if I use an S58 dovetail to M48 adapter for example to thread into my imaging train, I could then clamp it down onto the steeltrack in any chosen orientation of the camera?

    Answer rated: -3
    Yes, this is correct. The S58 dovetail features 6 x M2,5 headless setscrews. They can be loosened with the included 1.3mm Allen wrench to detach the integrated 2" standard clamp and to mount a S58 adapter / clamp in any position you want.
    Answer by: Baader Web Team (Admin) on Mar 12, 2019 9:06:00 AM
  44. Rated: -2
    3/9/2019 1:02 AM Baader Wide-T-Ring Fujifilm X with D52i to T-2 and S52
    What parts do i need to connect fuji-x mount to celestron rasa 8"

    Answer rated: 0
    The camera has a back focus length of 17,7mm and the mentioned T2-ring is 8,3mm which gives in summary 26mm. From T2 adapter of the
    RASA 8 it is 25mm and by that unluckily 1mm too short. There are adapters from Celestron available for this telescope for Sony and Canon
    mirrorless, hopefully there will be more per haps for Fuji-X and others also.
    Answer by: Baader Web Team (Admin) on Mar 11, 2019 9:52:00 AM
  45. Rated: 0
    3/7/2019 3:08 AM Baader 2" ClickLock eyepiece clamps
    How long is the nose piece (the part that inserts into the focuser tube) on the 37mm extension (2956237)?
    I have the 47mm extension and the nose piece is 27mm on that one...is it the same?

    Answer rated: -3
    In deed the nose pieces are different. The length of the 37mm version is ca. 24mm.
    Answer by: Baader Web Team (Admin) on Mar 8, 2019 11:56:00 AM
  46. Rated: 0
    2/26/2019 8:50 AM Baader UBVRI Photometric Filterset (4mm Glass)
    Are these filters parfocal with other filter, such as a clear filter or narrow band imaging filters?

    Answer rated: -1
    Because the glass thickness is 4mm these are not parfocal with other filters of different thickness
    Answer by: Baader Web Team (Admin) on Feb 26, 2019 9:20:00 AM
  47. Rated: -2
    2/23/2019 12:39 PM Hyperion Zoom 2.25x Barlow lens
    Hello. Can this Hyperion Zoom 2.25x Barlow lens be used with any eyepiece -- say a 5 mm EP for higher magnification, given your zoom stops at 8 mm -- giving equally good results as with your Mark IV zoom, or would quality be compromised in that case? Thanks in advance.

    Answer rated: -1
    This Barlow is designed especially for the Hyperion Zoom, so it gives the best results with this eyepiece. If you have this Barlow already, you can use it with other eyepieces, too - otherwise, a more "generic" barlow like Q-Turret or VIP barlow would probably be a better choice.
    Answer by: Baader Web Team (Admin) on Feb 25, 2019 1:40:00 PM
  48. Rated: 2
    2/21/2019 7:19 AM Baader Filterbox, stackable on all sides
    I'm just wondering how do you detach the blister hanger from the filter box? Do you just snap it off? As i'm worried about damaging the box if doing so as i cant see how it would snap off easily.
    Thanks.

    Answer rated: 1
    You can deepen the groove where the hanger is to be detached carefully with a cutter knife and then break it off.
    Answer by: Baader Web Team (Admin) on Feb 22, 2019 2:05:00 PM
  49. Rated: 0
    2/13/2019 7:03 PM Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B)
    When is this product becoming available again?

    Answer rated: 2
    Please use the function "Please notify me when the product is (back) in stock" Easily enter your email adress in the field behind this sentence and you will be informed as soon as we know!
    Answer by: Baader Web Team (Admin) on Feb 14, 2019 8:46:00 AM
  50. Rated: -1
    2/13/2019 7:01 PM 2" / 1¼" Economy-Reducer with 2" filter holder
    Can I used this product as a reducer to make a 1 1/4" eyepiece fit into a clicklock socket?

    Answer rated: 0
    If you want to put it in a 2" ClickLock: Yes!
    Answer by: Baader Web Team (Admin) on Feb 14, 2019 8:48:00 AM
  51. Rated: -1
    2/13/2019 3:35 PM Baader S52 dovetail Camera-Adapter for Wide-T-rings (optical height: 2 mm)
    What is the inner thread diameter for this adapter? Is is a standard M48?

    Answer rated: 1
    As specified in the technical data the inner diameter is 47,5mm. There is no thread inside, the thread is just like a baffle against straylight.. There is no need to attach filters in this place because its part of the UFC system and the fitlers are placed in UFC filter holders
    Answer by: Baader Web Team (Admin) on Feb 13, 2019 3:39:00 PM
  52. Rated: -2
    2/8/2019 3:43 PM Baader D-ERF Energy Rejection Filter (75 - 180mm)
    Hello
    The D-ERF filters.

    Where can I find/download a full specifications with also thickness of each etc.?

    Thank you
    M

    Answer rated: 1
    Please click on one of the filter sizes and scroll down to "technical specifications". When you click on that, you will find the size and thickness of the filter. The bandwith is shown in a graphic on the top left of the page, in the image gallery
    Answer by: Baader Web Team (Admin) on Feb 14, 2019 8:50:00 AM
  53. Rated: -1
    2/6/2019 5:52 PM Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21)
    I would like to know the total physical lenght (without the T2 thread) of the adapter BTA for SC and MAK (T2 part #21) 2408160. And also what is the lenght of the SC thread of this adapter?

    Answer rated: -2
    The total length of the adapter is 27,5mm minus 5mm T2 male thread is 22,5mm minus 7,5mm female SC 2" thread gives the
    optical length of 15mm.
    Answer by: Baader Web Team (Admin) on Feb 7, 2019 10:31:00 AM
  54. Rated: -1
    2/5/2019 9:50 PM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Hello, are all Baader narrowband filters parfocal? I mean could I use extreme narrowband filters like the Baader 3.5nm with normal narrowbands like the OIII 8.5nm and expect them to be parfocal?
    Thanks in advance for your time and help!
    Regards,
    Ilias Galanis.

    Answer rated: 3
    Filters *with the same diameter* are parfocal, so you can combine the filters you have mentioned.
    Answer by: Baader Web Team (Admin) on Feb 6, 2019 10:58:00 AM
  55. Rated: 3
    2/3/2019 12:35 AM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    Hi, I would like to know if the 2" BDS-SC Baader Diamond Steeltrack® Focuser fits to my NexStar SE SCT 6".Best Regards Fermín

    Answer rated: 2
    Yes, you can attach the Steeltrack to a 6" Schmidt-Cassegrain, but to do so, you have to remove the rubber cover from the telescope's focussing knob. Then you'll have enough space for the SteelTrack. Unfortunately, there is not enough space between the Steeltrack and the brass focussing drive of the 6" Schmidt-Cassegrain to reattach the rubber cover; but you don't need it once the Steeltrack focuser is attached.
    Answer by: Baader Web Team (Admin) on Feb 4, 2019 8:32:00 AM
  56. Rated: -1
    2/2/2019 10:13 PM Frame for D-ERF Filters 75-180mm
    From what material frame is produced? Is it metal or some kind of plastic?

    Answer rated: 0
    It is not made of metal. The name of the material is Acrylnitril-Styrol-Acrylat-Copolymer, also know as ASA.
    Answer by: Baader Web Team (Admin) on Feb 6, 2019 9:49:00 AM
  57. Rated: 0
    2/2/2019 1:26 PM BCF Astro Conversion 7D/40D/50D/60D/400D/450D/500D/550D/600D/650D/1000D/1100D
    Hello
    Does Baader BCF filter work in Canon 700D?

    Answer rated: 0
    Yes, it also works for the 700D.
    Answer by: Baader Web Team (Admin) on Feb 4, 2019 10:14:00 AM
  58. Rated: -2
    2/1/2019 10:26 PM Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool (T-2 part #25Y)
    can i get directions on how to use the Baader varilock 29 lock

    Answer rated: 0
    We do not have a manual yet, but it is easy to use: Loosen the small locking ring, then you can adjust the length of the adapter to the desired length by screwing the threaded part against the top part.

    Tighten the locking ring; you can use the locking tool to do so. In the application images, you can see an example of the ring in a longer configuration at a telescope.

    You can use an Allen key to replace the adapter ring on the camera side and switch between T-2 (M42x0,75) and a S52-dovetail ring which fits e.g. into out T-2-rings.
    Answer by: Baader Web Team (Admin) on Feb 4, 2019 9:12:00 AM
  59. Rated: -1
    2/1/2019 1:59 AM Baader 2" ClickLock eyepiece clamps
    Can you tell me which 2" clamp is appropriate for the Sky-Watcher 8" Flextube SynScan GoTo Collapsible Dobsonian?
    Does this clamp center the accessory relative to the focuser tube?

    Answer rated: 2
    Most likely (we don´t sell SkyWatcher) your clamp is made with a M54x1 thread so our 2956254 will fit. Please unscrew you clamp and check it
    with a caliper or ruler to be sure.
    Answer by: Baader Web Team (Admin) on Feb 4, 2019 9:42:00 AM
  60. Rated: 1
    1/26/2019 1:20 PM Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    What is the best diagonal for a F10 SCT (Celestron 9.25 Evolution):
    Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp
    If a focal Reducer/Corrector f/6.3 is used does the recomended diagonal change?
    Thanks

    Answer rated: 0
    We can't give a simple answer to this question. Especially at a system with f/10, there is not too much difference between prism and mirror, as the prism doesn't introduce noticable colour; behind a reducer (and at faster systems), the mirror is in an advantage.

    Please note that a reducer requires the correct distance; usually it is better to use an eyepiece with a longer focal length instead of a reducer, especially as a reducer can't enlargen the largest possible field of view, as the fov is still limited by the diameter of the eyepiece holder/internal tubes.

    Both prisms and mirrors can deliver very good results, and the BBHS are high-end versions. There is a very extensive comparison between mirrors and prisms, although unfortunately the BBHS weren't available yet when it was performed. You can find it at
    https://www.baader-planetarium.com/de/downloads/dl/file/id/160/product/2872/testreview_mirror_vs_dielectric_vs_prism_diagonal_comparison_w_paolini.pdf
    Answer by: Baader Web Team (Admin) on Jan 28, 2019 8:37:00 AM
  61. Rated: 0
    1/25/2019 12:04 PM Steeldrive II motor focuser with Controller
    Hello,
    Can the Steeldrive II be mounted to a 2 inch monorail focuser as fitted to a TS Optics Ritchey-Chretien.

    Answer rated: -4
    Unfortunately this will not work, you would have to replace the TS focuser with a Diamond Steeltrack Focusser
    Answer by: Baader Web Team (Admin) on Jan 25, 2019 12:37:00 PM
  62. Rated: 2
    1/24/2019 6:04 AM Alan Gee Telecompressor Mark II (T-2 part #20)
    Will it work on Meade ACF scts?

    Answer rated: 0
    The Meade ACF optics is a coma corrected system so unfortunately the Alan Gee Telecompressor won´t work with it because it is made
    for classic Schmidt-Cassegrain telescopes.
    Answer by: Baader Web Team (Admin) on Jan 24, 2019 11:06:00 AM
  63. Rated: 2
    1/23/2019 10:51 PM Baader 2" ClickLock Diagonal Mirror
    I have a Meade Infinity 102mm refractor. I would like to replace the upright mirror diagonal using Baader. Is this possible or I need some adapter?

    Answer rated: -1
    As far as I can see this telescope is made only to use with 1,25" accessories so a 2" diagonal won´t fit. Anyway I see bigger tubes mounted
    on the focuser that you may can unscrew this and replace it with a 2" ClickLock EP holder. We don´t sell Meade telescope so please try to
    contact a Meade dealer who can tell you what thread it is. If its possible to screw in a ClickLock then you´re able to use the 2" Diagonal.
    Please see following link to all of our ClickLock you may find one that matches:
    https://www.baader-planetarium.com/en/baader-2%22-clicklock-eyepiece-clamps.html
    Answer by: Baader Web Team (Admin) on Jan 24, 2019 10:13:00 AM
  64. Rated: -2
    1/23/2019 3:31 PM Baader 2" ClickLock Diagonal Mirror
    The Hyperion 17 baader eyepiece has the stop of the 2-inch barrel placed at 51,5mm. This eyepiece can be inserted into the 2-inch opening of the diagonal baader clicklock, without touching the diagonal mirror? Thanks for everything!

    Answer rated: 0
    Even with a screwed on 1,25" Filter the eye piece does not touch the mirror surface of the diagonal. If you´re still not sure you can take the
    diagonal and the eye piece separately in hand and see the eye piece over the mirror coming close when putting it in.
    Answer by: Baader Web Team (Admin) on Jan 24, 2019 9:20:00 AM
  65. Rated: -1
    1/23/2019 12:40 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have the Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece and would like to attach my Canon 5dMk3 for moon photography.

    Answer rated: -1
    We prefer following three adapters to connect a full format camera onto the eyepiece:

    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--40-mm-extension-tube-(t-2-part-25b).html
    https://www.baader-planetarium.com/en/baader-t-ring-canon-ef-(eos)-to-t-2.html

    To prevent dark corner on the images of a full format sensor the 40mm extension increases the distance. Otherwise the exit pupil
    of the eye piece is too close to the sensor and you get images similar to fish-eye prime lenses that shows only an Illuminatet circle.
    Please refer page 4 of this document which shows even more possibilities like quick-changer etc.
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/3117/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    For your purpose you can handle the zoom eye piece like the shown Morpheus.
    Answer by: Baader Web Team (Admin) on Jan 24, 2019 7:52:00 AM
  66. Rated: -2
    1/23/2019 5:45 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have a 2" (adaptable to 1 1/4") TeleVue 2x Powermate. Will this zoom EP work with my powermate? I will be using this combo on my XT8i.

    Answer rated: 1
    The Hyperion Zoom works also with the Powermate Barlow lens
    Answer by: Baader Web Team (Admin) on Jan 23, 2019 9:33:00 AM
  67. Rated: 2
    1/21/2019 3:28 PM Baader L-RGB CCD-Filterset
    I have a Celestron 11" RASA. I am using Baader high speed F/2 H-alpha / S-II / O-III filters.
    1. Are these LRGB filters suitable, do the LRGB filters need to be matched to the F/2 as well similar to the H-alpha etc.?
    2. If they are suitable are they parafocal with the high speed F2 filters? So I can focus using the L filter and swap to the H-alpha ?
    Thank you.

    Answer rated: 2
    1. Since the LRGB have a wide bandpass, the focal ratio of the telescope is not relevant. You can use them with your instrument.

    2. This depends on the thickness of the filters. If you are using LRGB and narrow band filters of the same size,
    they have the same thickness, therefore they are parafocal.

    Answer by: Baader Web Team (Admin) on Jan 30, 2019 5:04:00 PM
  68. Rated: 0
    1/21/2019 3:20 PM Baader UFC 1¼" AUX-Filter-Holder (requires #2459113)
    I have assembled the UFC filter slider with the 1 1/4" AUX filter holder. There does seem a way of securing the holder in the slider. I noticed that the 50.4mm uses the three screws into the slider to prevent it moving. Is there another part, such as a cover plate, that will hold the AUX holder in place using the screws from the slider ?
    Otherwise all the components are working well, thank you.

    Answer rated: 1
    This AUX filter holder is only intended using it with the three holding screws. It is a many times proved and save methode holding filters or
    the AUX filter holder.
    Answer by: Baader Web Team (Admin) on Jan 24, 2019 11:46:00 AM
  69. Rated: 1
    1/15/2019 11:49 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Would it be possible to fit this to a Skywatcher 130 PDS?

    Answer rated: 2
    We do not know the positions of the bore holes of all Newtonians, but please take a look at the technical drawing of the Versa Base which you can find in the Download-section of the product page of the Steeltrack, or directly at https://www.baader-planetarium.com/de/downloads/dl/file/id/30/product/2859/bds_nt_dimensions_technical_drawing.pdf

    If the holes fit, you can simply replace your focuser with the SteelTrack for Newtonians. Please note that the Steeltrack is designed for tubes with 20cm diameter or larger; for smaller tubes, you need additional spacers (#2957235).
    Answer by: Baader Web Team (Admin) on Jan 16, 2019 9:53:00 AM
  70. Rated: 3
    1/15/2019 7:52 AM Reducing piece S52 / M48
    Does this part have the s52 dovetail on both sides?

    Answer rated: 0
    The S52 Dovetail is only at the outer side in a way that the inner M48 thread points to the telescope/lense. Please refer the application Images
    according this item.
    Answer by: Baader Web Team (Admin) on Jan 15, 2019 9:43:00 AM
  71. Rated: -2
    1/13/2019 11:36 PM Baader UV/IR Cut / L-Filter
    Is it correct that for using the 2" filter on a 58mm lens I need:

    1. Baader DSLR 2" Filter-Holder M48/SP54: https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html

    2. Baader Lens-Adapter-Ring SP54/M58: https://www.baader-planetarium.com/en/baader-hyperion-dt-ring-sp54m58-for-dtadapter-iiandiii-and-hyperion-eyepieces.html

    Thank you in advance

    Answer rated: 3
    Yes, with these two adapters you can mount the filter in front of the lens.
    Answer by: Baader Web Team (Admin) on Jan 14, 2019 9:07:00 AM
  72. Rated: 5
    1/13/2019 12:34 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    If the zoom is modified to fit a Celestron Regal M2 spotting scope, can I then use it with a Celestron Barlow x2?

    Answer rated: -1
    You can use the Hyperion with a Barlow lens, but not on a spotting scope - usually, Barlow lenses do not work with spotting scopes because of missing backfocus; they can't be inserted deep enough. It is no problem on a telescope.

    To achieve higher magnifications, you need another eyepiece. Unfortunately, there is no Zoom available. You can find an overview about the Celestron eyepieces at
    https://www.celestron.de/ce_de/downloads/dl/file/id/1155/product/3444/bersicht_astronomischer_okulare_an_spektiven.pdf
    Also, our Classic Orthos and Morpheus eyepieces work.
    Answer by: Baader Web Team (Admin) on Jan 14, 2019 8:38:00 AM
  73. Rated: 3
    1/7/2019 2:11 PM Baader Neodymium (Moon & Skyglow) Filter
    Can this product be used on an unmodified sony a7r3? Do you offer any 'clip-in' options?

    Answer rated: 1
    Yes, this filter can also be used with unmodified cameras as well as for visual use.
    We do not have a clip-filter solution, but you can mount any 2" filters in front of a lens. This works for lenses with focal lengths of ca. 80mm and longer; for wide-angle-lenses, astronomical filters work not so good at the edges of the field of view.

    To mount a 2" filter in front of a camera lens, you need
    Baader DSLR-2" Filter Holder M48/SP54 # 2408166
    plus adapters from the SP54-thread to the filter thread of you camera. These are:
    Hyperion DT-rings #2958028 - #2458062 and additional Stepper Rings M67 up to M82
    Answer by: Baader Web Team (Admin) on Jan 7, 2019 3:18:00 PM
  74. Rated: -4
    12/31/2018 4:26 PM Diamond Steeldrive motor drive for Diamond Steeltrack® focusers
    Hello guys. I have a question about my Baader SteelDrive and SteelTrack NT. When I extend the focuser to its maximum position using the software, instead of coming out 40.020mm it only comes out around 35mm. Does that mean the step size is wrong and I need to make some measurements and change the step size?
    Thanks
    Emil

    Answer rated: 7
    Either the step size is set wrong and/or the zero point is not configured correctly.

    Please move the focuser all the way in while not connected to power.
    Then set the position to zero. Now move it all the way out.

    (You could also configure it to be an SC-focuser, which gives you way more focusing range. Just beware of exceeding the mechanical limit)

    Answer by: Baader Web Team (Admin) on Jan 29, 2019 10:32:00 AM
  75. Rated: 0
    12/30/2018 11:30 PM Baader Neodymium (Moon & Skyglow) Filter
    I have a unmodified Canon 60D for astrophotography. I image from a light polluted backyard and was looking for a light pollution filter to use. Would you recommend this or another filter for that purpose? I will be upgrading to a cooled mono CMOS camera in the near future and want the capability of a 2inch filter for both the CMOS and DSLR.

    Answer rated: 1
    The filter is suited for both cameras.
    Answer by: Baader Web Team (Admin) on Jan 29, 2019 10:39:00 AM
  76. Rated: 2
    12/29/2018 12:06 AM Mark V Großfeld (Giant)-Binocular
    I like to buy a Mark V Großfeld (Giant)-Binocular. With the Bino I like to buy a Glasspathcorrector.
    I am using a Takahashi 120 refractor (TSA-120) F/7.5. Would Glasspathcorrector Factor 2,6 be a good choice?
    Also, I like to ask you for what Diagonal to chose for this Bino. I have the Baader 2" ClickLock Diagonal Mirror # 2956100, for a year and I am very, very pleased with it!!
    Should I choose this diagonal # 2956100, or should I chose Baader 2" ClickLock Diagonal Mirror M68 thread (Zeiss) # 2956100Z for the Mark V Großfeld (Giant)-Binocular with Glasspathcorrector Factor 2,6 ?

    Answer rated: 3
    For the TSA 120 the glaspath corrector 1,7x would be suitable, but 2,6x works too. Its better to use the T-2 mirrors and not 2" mirrors with the Mark V binocular, the long way that the light travels through a 2" mirror may be too long to reach focus.
    Answer by: Baader Web Team (Admin) on Jan 3, 2019 12:25:00 PM
  77. Rated: 2
    12/28/2018 11:08 PM Baader Multi-Purpose Vario Finder 10x60 (single or with MQR-IV finder holder)
    The version of the 10x60 finder witth MQR IV finder holder, does it include an EQ dovetail as well?

    Answer rated: 1
    A dovetail is only included in the version without MQRI V holder
    Answer by: Baader Web Team (Admin) on Jan 3, 2019 12:21:00 PM
  78. Rated: -1
    12/22/2018 1:16 PM Steeldrive motor drive for classic Steeltrack focusers
    I have classic steeldrive focuser and it worked very well with steelgo software on a aold computer. Now, i have a new computer with windows 7-64 bits and steelgo failed. It's looking for update, a window says" update successfully" and it try again. I need to stop computer. I 'm looking for an update for steelgo but I can't find it ! The page isn't exist ! Can you help me please ?

    Answer rated: 0
    We have just released a 64bit compatible driver. Available in the Download Section of the SteelDrive page.
    (direct link: https://www.baader-planetarium.com/de/downloads/dl/file/id/1374/product/2997/steeldrive_ascom_treiber_version_1_0_5.zip)

    Answer by: Baader Web Team (Admin) on Jan 29, 2019 2:12:00 PM
  79. Rated: 2
    12/22/2018 2:32 AM Hyperion Zoom 2.25x Barlow lens
    Will this Barlow attach to the older Mark II Zoom?

    Answer rated: 0
    Yes, it will fit to all older Hyperion Zoom models
    Answer by: Baader Web Team (Admin) on Jan 2, 2019 2:32:00 PM
  80. Rated: -4
    12/18/2018 5:54 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have a Mark IV zoom EP. With both the 1-1/4" and 2" nose pieces removed (& A/B removed), can you please tell me what the thread diameter size/spec is at the tip/end of the lens container? I can find no reference as to what this thread can connect to. Please help. Thanks... John

    Answer rated: 0
    It is a 2" SC-thread, used e.g. at the back of many Schmidt-Cassegrain-telescopes or many star diagonals. So, you can screw the eyepiece e.g. directly onto a star diagonal (almost theft-proof), if desired.
    Answer by: Baader Web Team (Admin) on Dec 19, 2018 8:16:00 AM
  81. Rated: 2
    12/14/2018 8:24 PM Mark V Großfeld (Giant)-Binocular
    How do you direct-connect a Mark IV zoom EP to the Mark V binoviewer (can you?)?

    Answer rated: 1
    The binoviewer has got "only" a clicklock eyepiece adapter, so you can't screw the eyepieces directly (and theft-proof) onto the binoviewer. The Clicklock can't be removed, because it also contains the mechanism for the diopter adjustment.

    To attach the Hyperion Zoom, we recommend to use the adapter "A" for spotting scopes which is included with the eyepiece, because it saves you some more millimetres of backfocus.
    Answer by: Baader Web Team (Admin) on Dec 17, 2018 8:29:00 AM
  82. Rated: 0
    12/6/2018 6:40 PM Baader T-2 BBHS ® Mirror Diagonal
    In regards to this style of diagonal, please clarify T-2 fitting?..
    Are the threads (standard) for say a 2inch telescope eyepiece that could directly attach to this unit from the bottom barrel of it? Yes or no? .if not what is the diameter/threading of a T-2 fitting?
    Thanks Dennis

    Answer rated: 0
    T-2 means 42mm thread. The mirror has a T-2 outer thread on one side and an inner thread on the other side. These threads are not standard for 2" eyepiece barrels. It is only possible to attach 2" eyepieces by mounting a 2" eyepiece clamp on the mirror. Unfortunately the mirror is not big enough for completely illuminating the field of large 2" eyepieces, for this you should choose the 2" version of the mirror.
    Answer by: Baader Web Team (Admin) on Dec 7, 2018 9:27:00 AM
  83. Rated: -1
    12/2/2018 8:09 PM Glasspathcorrector® 1:1,25 for Baader Maxbright Binocular
    Can the 1,25 Glasspathcorrector 2456314 be used with Mk. V bino too?

    What is the main difference between 2456314 and 2456314Z ??

    Answer rated: 1
    The 1.25 Glasspathcorrector for Baader Maxbright cannot be used with the Mark V Großfeld (Giant) - Binocular.

    The Baader Maxbright Binocular, and eventually the new Baader Maxbright Mk. II, which will come in the market pretty soon

    https://www.baader-planetarium.com/en/maxbright-binocular-incl.-case.html

    has a completely different design from the Mark V Großfeld (Giant) - Binocular
    https://www.baader-planetarium.com/en/mark-v-gro%C3%9Ffeld-%28giant%29-binocular.html.

    This means, that the difference in the design between these two products, requires differently designed glasspathcorrectors.

    The two models:

    the Glasspathcorrector 1:1.25 for Baader Maxbright binocular (# 2456314)
    https://www.baader-planetarium.com/en/glaspathcorrectorr-1125-for-baader-maxbright-binocular.html

    and the Glasspathcorrector 1:1,25 Glasspathcorrector 1:1.25 for Baader Mark V Großfeld (Giant) - Binocular (# 2456314Z)
    https://www.baader-planetarium.com/en/glaspathcorrectorr-1125-for-baader-mark-v-gro%C3%9Ffeld-binocular.html

    are not interchangable. This information is true even for the 1:1.7 Glasspathcorrectors. The differences are not that important for the 1:2.60 Glasspathcorrector, therefore exists only one version of the 1:2.60 Glasspathcorrector for both binocular versions.
    Answer by: Baader Web Team (Admin) on Dec 3, 2018 9:55:00 AM
  84. Rated: 0
    12/1/2018 2:30 PM Baader Guidescope rings BP I - 60-120mm
    Hi there,
    Would a pair of Baader rings BP I - 60-120mm handle a refractor and ccd weighing at 6.5kg safely?

    Many thanks,

    Paul

    Answer rated: -3
    This will work!
    Answer by: Baader Web Team (Admin) on Dec 3, 2018 2:16:00 PM
  85. Rated: -1
    11/30/2018 12:53 AM Zeiss-Diascope Bayonet 1¼" eyepiece adapter
    Will this adaptor also fit a Leica Apo Televid 77 - silver version?

    Answer rated: 1
    Zeiss Bayonet and Leica Bayonet are different so it will not fit
    Answer by: Baader Web Team (Admin) on Nov 30, 2018 8:27:00 AM
  86. Rated: 3
    11/29/2018 5:31 PM Maxbright Binocular incl. case
    Hi. Which reduction I have to use to connect MaxBright bino with Glasspath corrector to diagonal prism BA2456005? Thank you

  87. Rated: -1
    11/28/2018 1:22 PM ASSF: AstroSolar Spotting Scope Filter OD 5.0 (50mm - 150mm)
    Can I use AstroSolar films at deep temperatures

    Answer rated: -5
    For exactly this purpose we do supply the ASTF-series of mounted solar filters. The fastening rim on which the film is affixed to has the same expansion coefficient as the film itself. and that very ring is free-floating in the cell that mounts onto the telescope tube.

    Hence there is no stress build-up extended onto the film as it shrinks with temperature variation.

    The film itself will not be harmed by temperatures between -50°C up to +50°C. Below the film will become stiff and further below (- 100°C) even brittle. Above 50°C the adhesive that fastens the film onto its mounting-ring may start to become soft - in case that temperature persists for longer than 24 hours.
    Answer by: Baader Web Team (Admin) on Nov 28, 2018 1:24:00 PM
  88. Rated: -1
    11/28/2018 4:55 AM Fluorite Flatfield Converter (FFC) / 3x-8x
    What happens if i place the fluorite flat field correcter 250mm AFTER the research grade 3x telecentric? Would my telecentric beam become 9x?

    Answer rated: 1
    It is never a good idea to install two optics behind each other wich are extending the focal lenth of a telescope. We have not yet tried this special setup but you can be sure even if it works the image would not be as good as if you work only with TZ. It will be very, very dark.
    Answer by: Baader Web Team (Admin) on Nov 28, 2018 11:57:00 AM
  89. Rated: -2
    11/27/2018 6:38 PM Research Grade TZ-3 Telecentric System (3x focal length)
    1. What is the main difference between "Research" TZ-3 and regular TZ-4 other than magnification ratio?

    2. Second difference I can spot - I see that TZ3 is optimized for 2 lines, while TZ4 is only for 1 line. Is it difference only on coatings or optical design too?

    3. Should I expect same high quality when using TZ4 at Ha as on TZ3 at Ha?

    4. I can also see that case is different. Is there any reasoning/causes for that? I see that TZ3 fits in 2" focuser, while TZ4 has weird shape and can only be mounted by the thread, or I am missing something.

    Best regards,
    Mikhail

    Answer rated: -1
    1. The TZ-3 is a new design with larger lenses to fully cover the 46 mm aperture of the Solar Spectrum Research grade H-alpha Filters. It is not only designed for H-alpha but for CaK as well.

    2. No it is a more elaborate optical design to cover both wavelengths

    3. Yes - if you only intend to use it on H-alpha and if the entrance window of your H-alpha filter is not larger than 36 mm

    4. No - the TZ-3 has another shape owing to it´s larger lenses. Also it does feature 2" SC-threads as well as reducers for T-2 (M42x0,75 mm). Only the TZ-3 can be mounted straight onto the back end of Celestron Schmidt-Cassegrain telescopes to - also - work with our new generation of Triband-SCTs: https://www.baader-planetarium.com/en/telescopes/baader-planetarium/triband-sct-schmidt-cassegrain-based-multi-purpose-telescope-for-sun-and-deep-sky.html
    Answer by: Baader Web Team (Admin) on Nov 28, 2018 9:00:00 AM
  90. Rated: 2
    11/23/2018 4:22 AM Baader Multi-Purpose Vario Finder 10x60 (single or with MQR-IV finder holder)
    What is the true field of view of the 10X60 Baader Vario-Finder with Illum reticle (i.e, the telescope objective and EP together)? What is the EP field stop dia? Thx.

    Answer rated: -3
    The true field of view is 4.5 degrees. Field stop diameter of the erecting prism is 15mm
    Answer by: Baader Web Team (Admin) on Nov 29, 2018 11:51:00 AM
  91. Rated: -1
    11/21/2018 8:30 PM Baader L-RGB CCD-Filterset
    So your saying the 36mm filter glass thickness is 4mm while other dealers say 2mm 3mm 4mm whos correct?

    Answer rated: 2
    All filters with 1,25" and 2" have 2mm, only UBVRI have 4mm
    Answer by: Baader Web Team (Admin) on Nov 23, 2018 4:24:00 PM
  92. Rated: 2
    11/21/2018 12:13 PM DADOS Slit – Spectrograph
    I am interested in buying a Dados spectrograph. Which of the CCD/CMOS cameras available today would you recommend to use with it?

    Many thanks

    Eric
  93. Rated: -1
    11/21/2018 12:31 AM Baader UBVRI Photometric B-Filter 1¼" (4mm glass)
    Do you have any plans to offer the Photometric series filters in larger sizes? I would love to see them adapted to the UFC 50x50 format.

    Answer rated: 0
    Yes indeed we do. Stay tuned, we expect them to launch soon, still within this year.
    Answer by: Baader Web Team (Admin) on Nov 21, 2018 10:51:00 AM
  94. Rated: 5
    11/20/2018 7:05 PM Baader UFC (Universal Filter Changer)
    Will the filter base and slides be compatible with the new Celestron 8" RASA?

    Answer rated: -1
    We do not yet have an RASA 8 in our hands to adapt our UFC system to these. It will for sure take time until spring 2019 before we can come up with solutions..Please register for our newsletter to become informations about new products, adaptors a.s.o. as soon as they are available
    Answer by: Baader Web Team (Admin) on Nov 22, 2018 10:22:00 AM
  95. Rated: 5
    11/18/2018 9:22 PM Laser Colli - Mark III
    I have an original (?) LaserColli which I use on reflecting telescopes. Can I use it on refractors ?

    Answer rated: 0
    As written on the product page this item is useful for reflecting telescopes. There are other tools available for refractors like Chesire eyepieces
    Answer by: Baader Web Team (Admin) on Nov 19, 2018 10:29:00 AM
  96. Rated: -2
    11/16/2018 10:39 PM Baader 2" ClickLock eyepiece clamps
    Hello. Is there a Clicklock clamp available for the following refractors?
    - Tele Vue 85 mm APO Refractor
    - Tele Vue NP101is Nagler-Petzval APO Refractor
    - Tele Vue NP127is Nagler-Petzval APO Refractor

    Thank you!

    Answer rated: -5
    There are no ClickLock Clamps available that fit directly on the focuser of the TeleVue Refractors. We recommend to use a 2" diagonal with 2" clamp like our 2" BBHS mirrors wich meet the quality of these high end refractors.
    Answer by: Baader Web Team (Admin) on Nov 19, 2018 10:24:00 AM
  97. Rated: -1
    11/15/2018 9:57 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Can a Baader STEELTRACK Focuser fit on a CORONADO PST DOUBLE STACK?

    Answer rated: -1
    Unfortunately there is no chance to fit the Steeltrack Focuser on a Coronado PST. The focuser is way too big and too long
    Answer by: Baader Web Team (Admin) on Nov 16, 2018 8:44:00 AM
  98. Rated: -7
    11/10/2018 3:52 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Is any adapter available that allows this eyepiece to be used on the Opticron MM4 60ED spotting scope?

    Answer rated: 12
    Yes, this adapter is now available! See here:
    https://www.baader-planetarium.com/en/2%22a--m41-5-zero-length-reducing-piece-(no-optical-height).html
    Answer by: Baader Web Team (Admin) on Nov 15, 2018 11:56:00 AM
  99. Rated: 0
    11/10/2018 12:25 AM Baader f/2 Highspeed-Filterset H-alpha / OIII / SII
    When will 2" filters will be in stock?

    Answer rated: 0
    Some stores talk about March 2019. Is it the real delay?
    Answer by: Jean-Pierre Berger on Nov 20, 2018 4:11:03 AM
    Answer rated: -10
    Unfortunately it is very often hard to predict delivery times of items. Therefore we have installed an "Notify" function on the pages of products wich are currently out of stock. Please use this function to become informations as soon as they are available.
    Answer by: Baader Web Team (Admin) on Nov 12, 2018 8:33:00 AM
  100. Rated: -7
    11/8/2018 11:37 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    I'm considering getting a Alan Gee Telecompressor for visual & photographic use with a non-Edge Celestron C9.25. What adapters would I need to connect a CCD camera with a 1.25" filter wheel (and possibly an OAG)? For visual use, I have an Astro-Physics Maxbright 2" diagonal.

    Thank you.

    Answer rated: 4
    You find all informations in the pdf in the download section on the product page: https://www.baader-planetarium.com/en/downloads/dl/file/id/213/product/1197/baader_alan_gee_ii_telecompresor_shapley_lens_f_5_9_manual_and_applications.pdf
    Answer by: Baader Web Team (Admin) on Nov 9, 2018 9:39:00 AM
  101. Rated: 1
    11/8/2018 7:25 PM Baader Hyperion 68° Eyepiece Set (Starter)
    Do I need to remove the 1 1/4" barrel when fitting these lenses to a telescope with a 2" focuser?

    Answer rated: -2
    No. There are lenses in the 1,25" barrel, if you remove it, you will have a wide angle eypiece with long focal lenght and poor correction. More useful tips can be found in the manual: in the download section of the product page https://www.baader-planetarium.com/en/downloads/dl/file/id/155/product/1208/hyperion_eyepieces_instruction_manual.pdf
    Answer by: Baader Web Team (Admin) on Nov 9, 2018 9:40:00 AM
  102. Rated: -4
    11/3/2018 8:59 PM BCF 2 Astro Conversion Filter CANON EOS 5D/6D MK II
    Hallo funktioniert bcf2 astro conversion filter auch mit alter eos 6d?

    Answer rated: -1
    Ja, das passt!
    Answer by: Baader Web Team (Admin) on Nov 8, 2018 12:45:00 PM
  103. Rated: 3
    10/31/2018 5:12 PM Canon Camera Astro Upgrade
    Is this a full Spectrum or h alpha conversion?

    Answer rated: 1
    To answer this question it would be necessary to define what means "full spectrum": If you mean visual spectrum then yes, it covers the full visual spectrum from red to deep blue. You can see a chart here: https://d3gqwrfrlgdnxc.cloudfront.net/media/extendware/ewimageopt/media/inline/fd/7/canon-camera-astro-upgrade-686.jpg
    Answer by: Baader Web Team (Admin) on Nov 8, 2018 12:47:00 PM
  104. Rated: -2
    10/31/2018 4:57 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    Can I use the Alan Gee on a C14 (non EdgeHD, it's an old C14 Fastar) for visual use (not CCD)? How much will the focal reduction be (C14 is a f/11 telescope, not f/10)?

    Thanks a lot

    Answer rated: 6
    Yes, it works with C14 and you will have around f/7 at the end
    Answer by: Baader Web Team (Admin) on Nov 8, 2018 12:50:00 PM
  105. Rated: -1
    10/29/2018 8:04 PM Baader Full-Frame CCD Narrowband-Filterset II (H-alpha 7 / OIII / SII / H-Beta)
    Can I use the FullFrame CCD Filters with my FullFrame CMOS DSLR (Nikon D750)? Or do I have then to fight with some issues?

    Answer rated: 1
    Yes, you can use these filters - but it doesn´t make much sense.DSLR have colour sensors with Bayer filter, means only 1/3 of the pixels of the sensor is sensitive in selected wavelenght. And the sensitivity is not comparable with b/w sensor. At the end you have very long exposure times and only 1/3 of the resolution of your sensor in each photo
    Answer by: Baader Web Team (Admin) on Oct 30, 2018 10:52:00 AM
  106. Rated: 0
    10/29/2018 9:28 AM Baader 2" ClickLock M56ix0,75 clamp (Takahashi)
    Will this thread into the Takahashi 2" mirror diagonal?

    Answer rated: 0
    Because Takahashi is not on the sortiment of products that we have, we cannot say for sure, if it will fit the Takahashi 2" mirror diagonal. Unfortunately we were unable to find technical drawings of the mirror diagonal, so we could check this information. If you can unscrew the eyepiece holder, you can measure the diemeter of the threading and its pitch. In this way, you can find out, what is the thread that you would need.

    Anyway, a product that might help you, if the backfocus distance allows you, is the Baader 2" ClickLock with 47 mm extension barrel, or the Baader 2" ClickLock with 37 mm extension barrel. They would fit any 2" eyepiece holder, regarding the manufacturer. For more information, please refer to the image below.

    https://www.baader-planetarium.com/media/extendware/ewimageopt/media/inline/b1/6/baader-2-clicklock-okularklemmen-von-t-2-bis-35-f08.jpg
    Answer by: Baader Web Team (Admin) on Oct 29, 2018 1:24:00 PM
  107. Rated: 1
    10/25/2018 3:13 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    1) I was told that the 1.25 nose piece does come off but when I looked at one in the store it looks like there are small set screws in the side. I tried to twist off the 1.25 and it would not budget. Does it come off?
    2) the vendor said the 2" is only for ease of use. You get no advantage of using the 2" re more light gathering. Is this true?
    3) If #2 is true then you do not buy 2" filters with this eye piece
    4) you do not get the normal "space walk" feel of the 2" with this eye piece if #1 is true so you might as well buy a 1.25 zoom or a 2" dedicated zoom if you want that 2" feel?

    Answer rated: 2
    1) The 2" nosepiece can be removed, so that you can access the 1.25" nosepiece, which has also the safety kerfs. You can remove it, too, to switch between the adapter rings for spotting scopes and telescopes as described on page 5 of the manual at https://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf
    If you remove the 1.25" nosepiece, you'll see a smooth hull with a diagonal slit - this is a part of the zoom mechanism. The lenses inside can not be removed without destroying the eyepiece, only the smooth hull can be removed to attach the eyepiece to some spotting scopes.

    2 & 4) This is true. 2" nosepieces are only interesting for eyepieces with longer focal lengths than ca. 32mm - the true fields of view (the part of the sky which you can overlook) of eyepieces with smaller focal lengths always fit into 1.25" nose-pieces. There is no advantage in using 2"-lenses at 24mm, even less at 8mm.

    Please note that the space walk feeling is only an effect of the apparent field of view of an eyepiece. To achieve it, you need an apparent field of view of about 76° like with our Morpheus, where you can still see the edge of the field of view, but it starts to dissappear when you observe for some time. The Hyperion Zoom has got a smaller apparent field of view, so you'll still notice the edge. But please compare its field of view to that of other zoom eyepieces! Especially note that the apparent field of view increases with higher magnification, while many other eyepieces show a smaller field of view at high magnification.

    Basically, it is a 1.25" zoom with an included 2" adapter, because a 2" eyepiece in this focal range wouldn't make any sense. But the 2" housing provides more stability, especialy if you attach a camera to the eyepiece. I don't know of any 2" eyepieces at all.

    3) We'd recommend always 2"-filters, because you use them also with 2"-pieces for lower magnifications, or mount them inside of a 2"/1.25"-reducer, so that you can change 1.25"-eyepieces without changing the filter. But if you look only at this eyepiece, yes, there is no difference if you use 1.25" or 2" filters.
    Answer by: Baader Web Team (Admin) on Oct 29, 2018 8:53:00 AM
  108. Rated: -1
    10/23/2018 7:20 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    I have purchased a Baader MPCC Multi Purpose Coma Corrector Mark III for use with my Celestron CN-8 f/5 8 inch Newtonian reflector. I am using a Canon 1100D DSLR and standard Canon T-Ring adapter. When these are attached they are then attached to the tube using the Celestron 2 inch eyepiece adapter.

    The problem I am having is that I cannot get the camera to focus using the MPCC and 2 inch eyepiece adapter. I am at the limit of the telescope focuser which cannot move the camera near enough to the focal point of the telescope.

    I would have thought that the MPCC/Canon/Celestron combination would be a common one yet it doesn't work.

    Do you have any suggestions how this could be solved? For example, are you aware of a shorter 2 inch eyepiece being available? Is there an attachment that can fit in to the threads at the front/inside of the MPCC which would replace the 2 inch eyepiece and allow the camera sensor to reach the focal point?

    Thanks.

    Answer rated: -2
    This is indeed a special case. The Celestron's C8N Newton uses the T-2-thread under the 1.25" adapter to bring the camera close enough to the telescope (a camera requires ca 55mm more back-focus than an eyepiece). But this included T-2-adapter doesn't give you the option to mount any coma corrector in front of it.

    We do have a S57-ClickLock (Skywatcher / Celestron) #2956257 which should fit into your focuser and is only 30mm long - maybe this saves you enough backfocus, perhaps in combination with moving the main mirror some mm upwards with its collimation screws.

    On the other hand, we had no reclamations about the MPCC with a Newton concerning focus so far, maybe because most astrographers tend to replace the simple focuser with a better model like the 2" BDS-NT Baader Diamond Steeltrack Focuser # 2957230, anyway. But to mount it onto the C8N, you'd have to drill some holes into the tube, as shown in the installation video on the product site.

    I'm sorry that Celestron's Newton doesn't provide a possibility to use photographic 2" accessories in a better way.
    Answer by: Baader Web Team (Admin) on Oct 24, 2018 9:13:00 AM
  109. Rated: 8
    10/20/2018 12:43 PM Baader 2" ClickLock eyepiece clamps
    When will the M68i x 0,75-ClickLock adapter be available?
    Thanks in advance, Bart.

    Answer rated: 0
    We expect the M68i x 0,75 ClickLock to be in stock by the end of the year.
    Answer by: Baader Web Team (Admin) on Oct 22, 2018 3:38:00 PM
  110. Rated: -2
    10/19/2018 11:07 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Is there an adapter for the Bresser Messier AR 127L with Hexafoc to mount the BDS RT?

    Answer rated: 0
    We don´t sell Bresser products so please contact a dealer who is selling this brand. He should be able to give you the information what thread
    is on the hexafoc to see if it is possible to mount the BDS-RT.
    Answer by: Baader Web Team (Admin) on Oct 26, 2018 9:37:00 AM
  111. Rated: -1
    10/17/2018 11:36 AM Baader UFC S70 VariLock 15-20mm extension
    Can this adapter be locked at specific proper optical-length position, and at the same time maintain/hold a camera sensor perpendicular to the optical axis of a telescope (perpendicular to 0.01 degree or better, specified by Celestron's RASA manual) ? I've tried to look into the pictures of this adapter and I guess I can figure out how this adapter should be fixed onto other adapters with S70 dovetail, and how it is continuously adaptable on its optical length. However, the adapter seems to me have no locking mechanism to lock on specific optical-length-position, so I'm worried about this. PS.My plan is to add this adapter after two 5mm S70 extension adapters, and install the UFC filter base after this adapter (planed total optical train: telescope side adapter RASA plate->5mm ->5mm ->this # 2459145 ->UFC filter base and a UFC filter slider -> #2459119 S52 and # 2408331 S52-to-Fuji-X adapters -> my Fujifilm mirrorless camera). Thank you.

    Answer rated: 2
    Of course you can lock the S70 VariLock. Adjust the length by turning the knurled outer ring and lock it by turn in the side with the S70 male. To
    avoid tilt problems all UFC parts are manufactored very precise. Please hold in mind that some camera manufactorers build in the sensor not
    so pretty exactly so you may have to turn the push/pull screws from the RASA anyway.
    Okay, after setting the length of the S70 VariLock to 18,8mm (please controll it by using a good caliber) you should have a good start. Or set it
    to 19,5mm when using 2mm thick filters. As a rule of thumb the focus point gets lay out to extra focal at a third of the filter thickness (~0,7mm)
    because of refraction. To stay homo focal and to receive lights it is of advantage using a clear glass or UV/IF filter.
    Answer by: Baader Web Team (Admin) on Oct 17, 2018 3:51:00 PM
  112. Rated: -1
    10/15/2018 7:42 PM Baader 2" ClickLock Diagonal Mirror
    What is the right type of screw driver to loosen the 6 M2.5 screws so the Click lock can be removed?

    Answer rated: -1
    You need an 1.3mm Allen key/hexagon socket wrench.
    Answer by: Baader Web Team (Admin) on Oct 17, 2018 8:54:00 AM
  113. Rated: 9
    10/7/2018 8:34 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Can the Diamond Steeltrack NT focusser be installed on a Skywatcher MN190 without drilling holes?

    Answer rated: -4
    Only our discontinued Classic Steeltrack NT focuser was able using the holes when disassembling the original Sky-Watcher focuser. Then only
    when having the focus wheel axis 45° to the OTA axis.

    Please notice our website for instructions how to mount the Diamond Steeltrack - as you can see there have to be new holes done to mount it.
    You need to have access to the inner tube holding the nuts but the Makstutov Correctore is closing it - I´m sorry.
    Answer by: Baader Web Team (Admin) on Oct 8, 2018 2:26:00 PM
  114. Rated: 0
    10/1/2018 7:54 PM Baader 2" ClickLock eyepiece clamps
    I have omegon triplet 102/F7 refractor. I'm not sure the end of focuser tube is S57 diameter or different. I want to change current clamp to baader clamp. thank you.

    Answer rated: -2
    Unfortunately, we do not have the technical data of all telescopes. So, I'd ask you to either measure the dimensions of the back of your telescope and send them to us, or to ask the manufacturer (Astroshop) to provide the data. As they also sell our Clicklocks, they'll probably be able to help you, too.
    Answer by: Baader Web Team (Admin) on Oct 2, 2018 9:20:00 AM
  115. Rated: -1
    9/30/2018 4:18 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Is this eyepiece parafocal as you move between click stops?

    Answer rated: -10
    We recommend that you focus at high power and then zoom out. Usually, you do not have to adjust the focus then, or only a little bit - this depends also on the possibility of your eyes for accomodation. In any way, there will not much refocussing be necessary - usually it's only the testing to see if you really have already achieved the best focus.
    Answer by: Baader Web Team (Admin) on Oct 1, 2018 9:18:00 AM
  116. Rated: -2
    9/30/2018 3:41 PM Baader 2" ClickLock Diagonal Mirror
    I would like to ask if there is some nosepiece with 2 inch screw collar,like on celestron 2 inch star diagonal to fit this baader on the back of edge hd 925.I want to keep original 3.3 inch to 2 inch on the telescope attached. thanks

    Answer rated: -1
    Most of our 2" star diagonals - this one too - have 2" SC-threads on the housing. These are accessible when you remove the 2" nosepiece (or the Clicklock). So, you can screw it directly onto the SC-thread of the telescope.
    To adjust the orientation of the star diagonal, you need
    NexStar Locking Ring 2"
    # 2458270
    This acts as a counter nut and gives you good grip, so that you can easily open/tighten it.
    Answer by: Baader Web Team (Admin) on Oct 1, 2018 8:29:00 AM
  117. Rated: -13
    9/20/2018 3:13 PM Baader 2" ClickLock eyepiece clamps
    I would like to buy a Clicklock for my Skywatcher Startravel 120 - can you confirm you have a model that fits this focuser? Danke.

    Answer rated: 5
    We do not have every telescope in stock, and sometimes the specifications change - so, if the thread isn't mentioned in your telescope's manual, it is the best if you measure it yourself.
    We have described how to do it here: https://www.baader-planetarium.com/en/blog/clicklock-clamp-for-your-telescope/
    Or asking a dealer who sells SkyWatcher telescopes to get the specific answer.
    Answer by: Baader Web Team (Admin) on Sep 21, 2018 8:37:00 AM
  118. Rated: -1
    9/20/2018 12:11 AM Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
    Hello, Is your mirror coated on the front of the glass on your Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp? As in a front surface mirror? Thank you! David

    Answer rated: 1
    BBHS-mirrors are front surface coated onto zero-expansion Sitall.
    Answer by: Baader Web Team (Admin) on Sep 21, 2018 9:38:00 AM
  119. Rated: -3
    9/18/2018 1:28 PM Baader Micro Guide eyepiece with Log-Pot illuminator
    I have the eyepiece and illuminator above. The 2 batteries in the illuminator are dead. Can you tell me what size batteries are required for the illuminator.
    The "dead" batteries in mine do not have any identification on then at all.
    Best Regards
    Andy

    Answer rated: 0
    You need 2x SR41 or LR41 Batteries. Both do work.
    Answer by: Baader Web Team (Admin) on Sep 18, 2018 3:50:00 PM
  120. Rated: 3
    9/17/2018 3:08 PM Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21)
    I have purchased the Alan Gee MkII and need to adapt it to my 2” Moonlite focuser which is mounted to my GSO RC8. It looks like I will need items 16 and 26 to do this. Where is the best place to order these from to be shipped to the states? I have various spacer rings to use with my Altair Astro 183C PROTEC camera that had 17.5 mm flange distance. The AG was purchased from Agena AstroProducts. Thanks, Tim

    Answer rated: 2
    Yes, you need the parts #16 (# 2408150) and #26 (#1508025) to mount the Alan Gee in a 2" eyepiece clamp, and in addtion some spacers to reach the desired distance between sensor and Alan Gee.

    For purchase in/delivery to the United States, please contact our distributor www.alpineastro.com.
    Answer by: Baader Web Team (Admin) on Sep 17, 2018 3:42:00 PM
  121. Rated: -3
    9/16/2018 4:37 PM BACHES Echelle-Spectrograph
    I am considering the baches spectrograph to be paired with a plane wave CDK17 which is f6.8 - i see from the manual that there is significant loss of flux with this configuration - is there an extender lens that could be used to offset this effect and what might be the impact on back focus if so? thank you

    Answer rated: 0

    In order to achieve a focal ratio conversion from f/6.8 to f/10, the distance between barlow lens and the entrance slit of the spectrograph should be approximately 48mm.

    Than means the barlow lens can be mounted directly onto the spectrograph. The additional backfocus can be gained, for example by using a M68 extension tube.
    Answer by: Baader Web Team (Admin) on Sep 18, 2018 10:11:00 AM
  122. Rated: 0
    9/15/2018 6:43 AM Baader Hyperion DT-Ring SP54/M58 for DTAdapter II&III and Hyperion Eyepieces
    Hi I'd like to check that this is the correct adapter to attach to a Nikon f1.8 50mm FX lens? I think that lens takes 58mm filters.
    I intend to pair this with the baader zoom using the M43/SP54 adapter, will that work?

    Answer rated: -5
    If your lens uses 58mm filters (this is usually indicated on the inside of the lens cap), this will work as intended with the Baader Hyperion Zoom M43 / SP54 Adapter # 2958086 and the Hyperion Zoom Mark III and IV.
    Answer by: Baader Web Team (Admin) on Sep 17, 2018 8:12:00 AM
  123. Rated: -4
    9/13/2018 4:36 PM BACHES Echelle-Spectrograph
    what is the optical "back focus" of the unit when added to a system - I have tight limits on my scope back focus and would like to see if it can fit with the focuser/rotator etc that are already in place on my scope. thank you

    Answer rated: -2
    The back focus needed for the attachment of the BACHES spectrograph is:
    45.2mm from mounting surface, when using the M55x1 thread.
    49.4mm from mounting surface, when using the 2" thread.

    Please have a look at the "Baches Info summary" in the download section. The last page contains detailed mechanical drawings.
    (https://www.baader-planetarium.com/de/downloads/dl/file/id/1420/product/2876/baches_info_summary_english.pdf)
    Answer by: Baader Web Team (Admin) on Sep 14, 2018 10:46:00 AM
  124. Rated: -3
    9/6/2018 1:01 PM Baader Machine-Grease #4 Ultra-Range (-50°C–+60°C)
    What is the, or equivalent, NLGI number for the Baader #2 and #4 greases?

    Answer rated: -3
    Sorry- we do not provide this information. Our offered greases are the result of many years of experience in this field. We provide these small quantities because a regular amateur would not need more grease to regrease his mount gears.
    Answer by: Baader Web Team (Admin) on Sep 10, 2018 8:56:00 AM
  125. Rated: -3
    9/4/2018 8:14 PM Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment (T-2 part #08)
    will this screw on to your hyperion 2.5 x zoom barlow?

    Answer rated: 3
    If you use the adapter #B which is included in the scope of delivery of the Hyperion Zoom 2.25x Barlow, you can combine this clamp with the zoom.
    Answer by: Baader Web Team (Admin) on Sep 5, 2018 9:11:00 AM
  126. Rated: 2
    9/4/2018 11:00 AM Baader T-2 Stardiagonal (Zeiss) Prism with BBHS ® coating (T-2 part #01B)
    Dear Baader for my dobson 18' f4 do you suggest to use the T2 zeiss prism diagonal or the T2 mirror? I mostly observe planets hires more then deep sky objects. I was thinking to prism due to future binoviewer but I heard prism could be an issue on a fast f4 scope for bad correction

    Answer rated: 5
    For a Dobsonian, we would recommend no star diagonal at all - usually, they are too long, so that you will not be able to reach focus. If you want to use a binoviewer at a Newtonian telescope, we'd strongly recommend
    2" Glasspathcorrector® 1,7x for Newtons # 2456300
    or
    2" Glasspathcorrector® 1,7x for Newtons incl. T-2 change ring # 2456301
    The only difference between them two is the adaptation to the binoviewer. They save ca. 80mm of glass path; a binoviewer consumes ca. 110mm, so you need only ca. 30mm of additional backfocus compared to a normal eyepiece without binoviewer.

    Otherwise, we'd recommend using mirrors on a mirror telescope to avoid possible colour abberations which can be caused by a prism.
    Answer by: Baader Web Team (Admin) on Sep 5, 2018 8:54:00 AM
  127. Rated: -1
    9/2/2018 1:24 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Can I fit this focuser to takahashi tsa 120 with 125x1mm thread?
    I can not find reduction ring for my scope. Thanks.

    Answer rated: 1
    Unfortunately we don´t have an adapter to connect our BDS-RT onto the 125x1 thread I´m sorry. Besides of this you can find here a
    drawing with all neccessary data about:
    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 Sep 10, 2018 4:14:00 PM
  128. Rated: 4
    8/30/2018 8:23 AM Baader 31mm Hyperion Aspheric 2" Eyepiece
    Which adapter ring i need to fit ASI 120mc ZWO on hyperion eyepiece 21mm.

    Answer rated: 2
    To attach a camera with T-2-thread like the ASI to any Hyperion or Morpheus eyepiece, you need Baader Hyperion T-Adapter M43i / T-2a (M42x0.75) # 2958080 and additional T-2-spacers to reach the desired magnification.
    All adaptations are described 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 Sep 3, 2018 9:06:00 AM
  129. Rated: -3
    8/29/2018 9:02 AM BCF 2 Astro Conversion Filter CANON EOS 5D/6D MK II
    Is there any instructional videos on how to install these filters into a camera?

    Answer rated: -2
    Unfortunately, we do not have instruction videos and can't provide instructions for replacing the filters - they are for those who either know what they are doing or are trying to use a manual from the web on their own risk.
    But we also offer a service to replace the filter, unfortunately we can only do this for customers in the EU: https://www.baader-planetarium.com/en/services/canon-camera-astro-upgrade.html
    Answer by: Baader Web Team (Admin) on Aug 29, 2018 10:20:00 AM
  130. Rated: 7
    8/28/2018 7:53 PM Eudiascopic ED eyepiece 35 mm - 1¼"
    Hi Do you still have these eyepieces ?
    Eudiascopic ED 35mm?
    I would like to buy a pair.

    Thank you

    Answer rated: -3
    Yes, these article is available. If you cannot complete the purchase over our website, it means that we do not deliver to your country. Please refer to our Dealer Locator section to find the closest dealer near you.

    https://www.baader-planetarium.com/en/storelocator/?___from_store=de
    Answer by: Baader Web Team (Admin) on Aug 29, 2018 10:52:00 AM
  131. Rated: 1
    8/27/2018 11:36 PM Baader OTP 60W Outdoor Telescope Power Switching Power Supply
    Does it fit to the Celestron Evolution? The Evo mount needs a power supply 12V/2A

    Answer rated: -1
    Yes, this power supply is suitable for the Celestron Evolution series, but since this is a 5A power supply, you need to change the power settings using your handcontroler. Please refer to the manual on how to change the Power settings for your specific mount.
    Answer by: Baader Web Team (Admin) on Aug 28, 2018 12:29:00 PM
  132. Rated: -1
    8/27/2018 12:12 AM Steeldrive motor drive for classic Steeltrack focusers, incl.hand control
    Hello,
    I have a Steeldrive Motor Drive for Classic, my PC is running on Windows 7 and I use MaxIm DL. Every time I try to connect the focuser from MaxIm DL I have to define the COM port in the ASCOM Focuser Chooser. Why can it not be saved?
    Kind regards
    Gunnar

    Answer rated: 0
    We would recommend you to download and install the new ASCOM driver. You can find the driver under the download section, below the illustrating images of the product.
    Answer by: Baader Web Team (Admin) on Aug 27, 2018 12:10:00 PM
  133. Rated: -5
    8/22/2018 2:56 PM Baader 2" ClickLock eyepiece clamps
    Do I use a M56 or M57 Clickloc for a skywatcher 72mm Evostar refractor. Thanks Chris

    Answer rated: -4
    We do not have every telescope in stock, and sometimes the specifications change - so, if the thread isn't mentioned in your telescope's manual, it is the best if you measure it yourself.
    We have described how to do it here: https://www.baader-planetarium.com/en/blog/clicklock-clamp-for-your-telescope/
    Answer by: Baader Web Team (Admin) on Aug 27, 2018 8:45:00 AM
  134. Rated: 3
    8/14/2018 2:46 PM Rubber/Metal foldable Morpheus® eyecup (M43-threaded)
    Is a dust cap (end cap) included with this eye cup?

    Answer rated: 4
    No. A dustcap is not included with the Rubber/Metal foldable Morpheus eyecup.
    Answer by: Baader Web Team (Admin) on Aug 14, 2018 2:56:00 PM
  135. Rated: -2
    8/12/2018 7:32 PM Baader Contrast Booster Filter
    Is the Baader Contrast Filter good for moon, planets and nebulae? If so I have a Tele Vue 2” 27mm Panoptic, Tele Vue 1.5” 18mm & 8mm Radians. (My scope if an 8” Meade LS ACF.) What would be the best size filter to get, since I don’t want to buy both, at least not yet?

    Answer rated: 8
    The Contrast Booster is ideal for observation of moon and planets for Fraunhofer refractors with short focal legth, means big colour abberation when magnification is high. It is not best for nebulae because these get not observed with high magnification so the colour abberation is not visible. The filter is furthermore not necessary for mirror telescopes like ACF because these have no colour abberation. If you want to observe nebulae with an ACF telescope you should choose an UHC-S filter. For planets choose the Neodymium filter or colour filters, especially on Mars colour filters (orange for surface detail, bright blue for clouds) are enhancing contrast massively.
    Answer by: Baader Web Team (Admin) on Aug 16, 2018 2:44:00 PM
  136. Rated: 4
    8/9/2018 2:58 PM Baader GP-Tripod/Pillar-Adapter Flange for Cel-AS/ EQ-5/HEQ5
    Will this allow also fit the Celestron AdvancedVX mount?

    Answer rated: 2
    Unfortunately the AVX has another foot than AS-GT and other mounts, therefore this adaptor will not fit.
    Answer by: Baader Web Team (Admin) on Aug 9, 2018 3:32:00 PM
  137. Rated: -2
    8/8/2018 3:50 PM Maxbright Binocular incl. case
    Can I use the Maxbright on the explore Scientific Mak Newtonian comet chaser?

    Answer rated: 4
    We do not know this specific telescope, but you can find it out yourself: All you have to do is measure the backfocus of your telescope. How to do this, is described in the manual of the binoviewer on page 4 and 5. In general, you will need a glass path corrector to reach focus - which one, depends on your available backfocus. You can find the manual here:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/154/product/1265/instruction_manual_for_baader_maxbright_binocular_viewer.pdf
    Answer by: Baader Web Team (Admin) on Aug 8, 2018 4:02:00 PM
  138. Rated: -3
    8/4/2018 3:52 PM Baader 2" Nosepiece with 2" filter thread
    Hi,
    i would like to use this adapter to connect a 2" diagonal (Meade 07205 with SCT connection) to my refractor. Is this the right piece?

    Answer rated: -2
    This usually works - both Celestron and Meade use the same SC-thread. So, the thread should be the same, although we have made the experience that in the past there were some Meade-telescopes where threads were so far away from the tolerandces that it didn't work. But usually the threads should fit.
    Depending on the depth of the thread of your star diagonal, it may be that you need an additional spacer, otherwise a coupling ring may rotate, although the threads fit. Unfortunately, we do not have Meade accessories here to try it out.
    Answer by: Baader Web Team (Admin) on Aug 6, 2018 8:39:00 AM
  139. Rated: 7
    8/3/2018 4:42 PM Baader 2" ClickLock eyepiece clamps
    Hi,

    I own a Celestron EdgeHD 9.25 SCT with CPC mount. It comes with 2" back and 2 inch diagonal. Can I replace the back with the #2956233 SCL (3,3")-ClickLock and then interface the Baader 2" ClickLock Diagonal Mirror# 2956100 ? I don't see this combination described in your documentation. If I missed it, apologies.

    This would allow me to easily rotate the diagonal if needed and would appear to keep focal length very close to original. There is no problem with zenith rotation of OTA.

    Any comments on doing this are appreciated.

    Thanks!
    Fran Doherty

    Answer rated: 4
    Fot the EdgeHD, you can use the 3.3" Clicklock.

    The regular C925 SCT doesn't have the large 3.3"-SC-thread, but the smaller 2" SC-thread like the C8. So, you need
    #2956220 SC / HD (2")-Clicklock (5" SC, 6" SC/HD, 8" SC/HD and 9¼" SC)
    With this, you can use any 2" accessories.
    The 3.3" Clicklock only fits onto C11 and C14.
    Answer by: Baader Web Team (Admin) on Aug 6, 2018 8:23:00 AM
  140. Rated: -15
    8/3/2018 4:24 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    The previous version has the M35/M45 Adapter ring to enable mount on Celestron/Zeiss spectives. May I use the same part to mount Mark IV on my old Celestron Ultima spective or the current 1 3/8" Spoting scope thread ring? Or do you have any other way how to mount Mark IV on Celestron Ultima/Acuter Natureclose scope?
    Thank you, Vit

    Answer rated: -12
    The 1 3/8" thread fits onto the Celestron Ultima spotting scopes and similar models, it's almost the same as the old M35 thread. So, for these spotting scopes, nothing has changed.
    For Zeiss Diascope and the Mark IV Zoom, you need #2454831.
    Answer by: Baader Web Team (Admin) on Aug 6, 2018 8:12:00 AM
  141. Rated: -2
    8/3/2018 1:39 PM 2" Glasspathcorrector® 1,7x for Newtons incl. T-2 change ring
    Hi
    Could I use this with my Skywatcher MN190 Mak-Newt, which is 1000mm f/5.2?
    I’m looking for a “Barlow” effect of between 1.5x-1.8x but am struggling to find one.
    The MN190 is already well corrected, would this adaptor introduce unwanted aberration?
    Thanks
    Jeremy

    Answer rated: 0
    An glaspath corrector is not a replacement for a barlow lens. Because it corrects the colour fringes that 3 prisms inlude in an image, it will create colour fringes when it gets used without these prisms, means, without binocular.
    Answer by: Baader Web Team (Admin) on Aug 3, 2018 2:24:00 PM
  142. Rated: 8
    8/2/2018 11:30 PM Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment (T-2 part #08)
    Dear Baader, can I use this clicklock to fine focus with a telescope schmidt/cassegrain?

    Answer rated: 4
    Its a very fine focusing method, very slow, but yes - it will work
    Answer by: Baader Web Team (Admin) on Aug 3, 2018 3:53:00 PM
  143. Rated: -1
    8/2/2018 11:26 PM Baader T-2 Quick Changer with Zeiss Micro Bayonet (T-2 part #06)
    Hello for what connections can I use it? Can I use it to extend t2 barlow for example?

    Answer rated: 0
    The quick changer needs it counterpart, the changer ring #7 to be functional. The changer has T-2 inner thread, the ring T-2 outer thread. If you mount it in between any T-2 connection between two T-2 items, you can take these apart in a second without screwing. It also fits to T-2 barlow. When you put it in between for example a camera T-Ring and the barlow, you can much easier take the camera away or rotate the camera.
    Answer by: Baader Web Team (Admin) on Aug 3, 2018 3:54:00 PM
  144. Rated: -2
    7/30/2018 4:37 AM Bundle: Hyperion Universal Zoom Mark IV with Hyperion-Barlow 2.25x (8-24mm / 3.6-10.7mm)
    do you have an adapter that will attach Mark 4 zoom to a Sony FDR AX53 movie camera? It provides a 55mm filter thread to attach to the camera.
    Thanks Jamie Pauley purchasing through Adorama in the US.

    Answer rated: 3
    To attach a camera with 55mm Filter thread, you need
    Baader Hyperion Zoom M43 / SP54 Adapter # 2958086
    Baader Hyperion DT-Ring SP54/M55 for DT Adapter II&III and Hyperion Eyepieces # 2958055

    Answer by: Baader Web Team (Admin) on Jul 30, 2018 8:56:00 AM
  145. Rated: -5
    7/27/2018 5:58 PM Baader Multipurpose Finder Bracket MQR IV 9x60 finder (max diameter 72mm)
    Hi there.. Any idea is the shoe of this item will work with the focuser of the SW Esprit 100ED? The focuser is 3in
    Thanks,
    Diego

    Answer rated: -2
    The MQR fits into the standard finder shoe of the Sky-Watcher telescopes. Although we do not sell the Esprit or have it here, judging from the images on the web it uses the same finder base, so it should be no problem.
    Answer by: Baader Web Team (Admin) on Jul 30, 2018 11:24:00 AM
  146. Rated: 3
    7/19/2018 10:43 PM Baader M43/T-2 for Vixen (T-2 part #22)
    This adapter was recommended to me to connect my Pentax (with T2 adapter) to my new Baader Hyperion Mark IV eye piece. It fits the T2 perfectly, however the M43 side seems to be the exact same as the eye piece, meaning they won’t connect. Is there something I need to remove from the eye piece to thread this adapter in, or do I need a 3rd adapter to go M43 to M43?

    Answer rated: -1
    It seems that you've got the wrong adapter - you need an M43/T-2-adapter, but this one with a female thread:
    Baader Hyperion T-Adapter M43i / T-2a (M42x0.75) # 2958080
    https://www.baader-planetarium.com/en/baader-hyperion-t-adapter-m43i--t-2a-(m42x0.75).html

    The adapter #1508037 which you have mentioned fits into focusers by Vixen, which have a female M43-thread, and is not made for our eyepieces.

    Please also take a look at the following PDF where we describe the severel possible camera adaptations:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1772/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jul 23, 2018 2:30:00 PM
  147. Rated: -11
    7/18/2018 7:49 AM Baader UV/IR Cut / L-Filter
    i have bought ZWO 1600 MC-Pro which does not have any IR protect window so was considering the high quality Baader UVIR Cut 2' Model. How can i fix this inside the Camera cell, do i need to buy any separate attachment?

    Answer rated: -2
    We do not sell ZWO cameras, but as far as I can see, the camera comes with a T-2-thread and a 1.25" nosepiece.

    If ZWO's nosepiece has got a filter thread, you can insert the filter there; otherwise you can use our
    Baader 2" / T-2 Nose Piece (T-2 part #16) # 2408150 to use the camera with 2" filters
    or
    Baader 1¼" / T-2 Nose Piece (T-2 part #14) # 2458105 to use the camera with 1.25" filters.
    Answer by: Baader Web Team (Admin) on Jul 18, 2018 8:56:00 AM
  148. Rated: 2
    7/17/2018 11:09 AM Baader Q-Barlow 2.25x / 1.3x
    Dear Baader I have the q-barlow but the screwed into the eyepiece directly for 1.3x magnification is possible with any brand\kind of eyepiece or just with your classic orthos?

    Answer rated: 1
    The 1.3x configuration works with every 1.25'" eyepiece which has got a standard filter thread and an empty barrel - it is inserted ca. 15 mm deep into the eyepiece, this much space must be available.

    There are eyepieces which already have a built-in kind of barlow element inside of the 1.25" barrel, here you can't insert the Q-Barlow.
    Answer by: Baader Web Team (Admin) on Jul 18, 2018 8:14:00 AM
  149. Rated: -4
    7/16/2018 9:52 AM Hyperion Zoom 2.25x Barlow lens
    Can you tell me the full length of this Barlow with the 1.25 fitting?
    I need to source a Barlow that is short so I can achieve in-focus with a DSLR. thanks.

    Answer rated: -6
    The distance between your camera's T-ring and your focuser with inserterd Barlow is ca. 14mm, the nosepiece is ca. 2 cm long.
    Answer by: Baader Web Team (Admin) on Jul 16, 2018 10:15:00 AM
  150. Rated: 2
    7/15/2018 10:37 PM Baader 2"/90° Astro Amici-Prism with BBHS ® coating
    I have the 2456120 diagonal, and it's fine. However the Clicklock-SC clamp I use to fix the diagonal to my C9.25 SCT is too thick. What I really want is something with an SC-thread for the scope and on the other end, something to fit directly into the prism housing. Is there such a thing?

    Answer rated: 6
    You already have the solution (almost): Like on most of our 2" star diagnals, you can remove the 2" nosepiece and then have a 2" SC thread, so you can screw the prism directly onto the SC-thread of your telescope.

    Of course, it will usually end up in an uncomfortable position - but we offer the NexStar Locking Ring 2458270 which works as counter nut.
    https://www.baader-planetarium.com/en/baader-2%22-nexstar-locking-ring..html

    To attach the prism housing to your telescope, you may have to unscrew the eyepiece clamp, because otherwise it may hit the focus knob when you screw the prism onto the telescope.
    Answer by: Baader Web Team (Admin) on Jul 16, 2018 9:22:00 AM
  151. Rated: 0
    7/14/2018 12:03 PM Baader 2" Amici-erecting-prism 90° with 2" holder and 2" sleeve
    Re # 2456120 You state : Prism not suited for high magnification.
    Where do you draw the line ?
    Is a good quality refractor 150 mm still ok to use with
    the prism # 2456120 ?
    Your advise appriciated Regards Fred Janssen

    Answer rated: -3
    The Astro Amici Prism # 2456120 is suited for high magnification, while the 2" Amici # 2956152 is not.

    Standard Amici-prisms (like spotting scopes, too) are good for magnifications of up to ca. 60x-100x; of course this depends on the quality which you expect. This is the range of magnification suitable for terrestrial observations, where air turbulences usually prevent higher magnifications. Especially stars or bright planets in the center of the image show imperfections clearly.

    The Astro-Amicis allow for much higher magnifcations - the magnifications which can be used astronomy.

    This is not a problem of the telescope which you use, but of the optical design of the prism. There is an edge going through the middle of the prism which can cause reflections, and also both sides of the image need to be at the perfect angle. There is of course no strict limit for the magnification, but somewehere between 60x and 80x is a good limit for standard prisms.
    Answer by: Baader Web Team (Admin) on Jul 16, 2018 8:45:00 AM
  152. Rated: 0
    7/5/2018 10:39 PM Baader Standard Base - for MQR III&IV, for Witty One & for V-Bracket
    What are the maximum dimensions of dovetail that this base will hold?
    I picked up a used 60mm guide-scope that came with a standard (43mm) v-style dovetail base and I am having trouble finding a finder base that will support a dovetail that big.

    thank you

    Answer rated: -2
    The widest point of this base is approx. 34mm and therefore too small for Vixen dovetail. I´m sorry but so far we don´t have a solution for this case.
    Answer by: Baader Web Team (Admin) on Jul 6, 2018 10:21:00 AM
  153. Rated: 5
    7/5/2018 3:19 AM Baader Hyperion Zoom M43 / SP54 Adapter
    Hi do i need this adapter to connect the hyperion mark IV zoom to my canon dslr or do I need adapter #2958080? Thanks!

    Answer rated: 0
    You´ll need the 2958080 ring to connect a Canon DSLR onto the eye piece:
    https://www.baader-planetarium.com/en/baader-hyperion-t-adapter-m43i--t-2a-(m42x0.75).html

    This document will give you a lot of information on how to connect the camera:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1772/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jul 5, 2018 9:02:00 AM
  154. Rated: 2
    7/5/2018 3:18 AM Baader Hyperion T-Adapter M43i / T-2a (M42x0.75)
    Hi do i need this adapter to connect the hyperion mark IV zoom to my canon dslr or do I need adapter #2958086?

    Answer rated: 1
    To connect a Canon DSLR you´ll need this 2958080 ring. Please refer this document at page 4:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1772/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jul 5, 2018 8:57:00 AM
  155. Rated: 10
    7/4/2018 8:37 AM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    Hi, i purchased your mpcc mkiii, and i would like to know which ring i need to use with a nikon d800?

    Answer rated: 8
    You can use any standard T-ring like the Baader T-Ring Nikon to T-2 #2408300
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/camera-adapters/classic-t-rings/baader-t-ring-nikon-to-t-2.html

    All regular T-rings (but not the low profile adapters) provide the necessary distance of 55mm, which is an industrial standard.
    Answer by: Baader Web Team (Admin) on Jul 4, 2018 11:41:00 AM
    Answer rated: 5
    Thanks for the update!
    I have a m48 t-ring on my d800, do i need to use the badeer m48 extender to compensate the small ring i removed from the coma corrector?
    Thanks,
    Answer by: Ludovic Duvert-gauge on Jul 4, 2018 12:37:58 PM
  156. Rated: 10
    6/21/2018 9:18 AM Baader 2" ClickLock eyepiece clamps
    I have a Celestron Edge HD 8" SCT and I would like to purchase your #2956100 Baader 2" ClickLock Diagonal Mirror and your #2956220 SC-Clicklock.

    I have a Nikon DSLR and that I use with and without a Focal reducer. What other Clicklock products would I need to purchase?

    Answer rated: 1
    For visual use the ClickLock diagonal and the 2" SC ClickLock clamp is great. According astrophotography you need to go another way
    because the telescope requires a dedicated back focus distance to the camera. Therefore Celestron is offering a special adapter #93644 which is made of two pieces. Without reducer at f/10 the back focus length is 133,35mm, with reducer at f/7 it is 105,0mm. At last you´ll need a matching T2-Adapter for Nikon. https://www.baader-planetarium.com/en/baader-t-ring-nikon-to-t-2.html
    I know it is less convenient to change accessory but for astrofotography you have to spend more attention that you´ll be successfull.
    Answer by: Baader Web Team (Admin) on Jun 21, 2018 3:05:00 PM
  157. Rated: -15
    6/18/2018 9:55 PM Baader Sky-Surfer III red dot finder
    Can the Sky Surfer III be connected to a AstroPhysics A3251 male dovetail adapter (14 mm. width) ?

    Answer rated: 3
    Unfortunately this will not fit. The dovetail on the base of the finderscope has around 32mm width and will not fit in a 14mm clamp
    Answer by: Baader Web Team (Admin) on Jun 19, 2018 12:54:00 PM
  158. Rated: 6
    6/15/2018 3:39 AM Baader Hyperion Zoom M43 / SP54 Adapter
    Will this work on the Baader Hyperion Zoom Mark 1?

    Answer rated: 2
    Right now there are three different Hyperion Zoom eye pieces existing - the Zoom, the Zoom Mark III and Mark IV. The first generation has no
    M43 thread but only SP54 so you don´t need this adapter. Thank you for the hint - we will change the description of this item.
    Answer by: Baader Web Team (Admin) on Jun 15, 2018 9:01:00 AM
  159. Rated: 6
    6/13/2018 5:01 PM Maxbright Binocular incl. case
    Hi,
    Can you let me know what have to use like extra accessories to install Baader Maxbright binoviewer to my new Celestron Regal M2 100ED scope please.
    The scope can use astronomycal 1.25" eyepieces and has 540mm focal lenght.

    Kind regards
    Dimitre

    Answer rated: -1
    Unfortunately it is impossible to reach focus with one of our bino viewers in a spotting scope, doesn´t matter wich spotting scope. The focus mechanism of any Spotting Scope is internal and therefore focus travel is too much limited to allow attaching a binocular viewer
    Answer by: Baader Web Team (Admin) on Jun 14, 2018 11:15:00 AM
  160. Rated: 0
    6/12/2018 3:00 AM Baader DSLR-2" Filter Holder M48/SP54
    What diameter filter fits inside of a 2" filter holder? Also how can I equip my lens with a 52mm thread to the 48mm filter holder?

    Answer rated: -4
    For a 52mm lens, you need:
    - Baader DSLR-2" Filter Holder M48/SP54 # 2408166
    - Baader Hyperion DT-Ring SP54/M52 for DT-Adapter II&III and Hyperion Eyepieces # 2958052

    You can screw all mounted 2"-filters into the filter holder which use the astronomical 2"-thread of aproximately M48x0.75 or M48x0.6 (we try to make our threads so that the common 2"-filters fit, although there is no real standard for this thread.)

    Our filter-cells like # 2459252L are made for round filters with a diameter of 47,4mm and offer a free aperture of 46,9mm.
    Answer by: Baader Web Team (Admin) on Jun 12, 2018 8:15:00 AM
  161. Rated: 3
    6/11/2018 3:28 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    I bought recently this focuser, but i made the hugh mistake to move the drawtube align screws and now nothing work correctly the tube is no more aligned. Do you have a trick to put the drawtube perfectly on axis ? I tried but its not okay at all.....

    Thank you
    Alexis

    Answer rated: -1
    Please check out page 12 + 13 of our Diamond Steeltrack instruction manual:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/175/product/2859/instruction_manual_for_all_baader_diamond_steeltrack_bds.pdf
    We tried to be very explicit that this alignment procedure is very delicate. Please note the following red text that we wrote on page 12:
    "Please read the following thoroughly and only proceed with the alignment procedure if you feel well informed about what you are doing"
    Answer by: Baader Web Team (Admin) on Jun 11, 2018 3:33:00 PM
  162. Rated: 1
    6/11/2018 12:46 AM Baader 2" / T-2 Nose Piece and Camera adapter (same as used by SBIG) (T-2 part #16)
    Will this screw into the Baader Nikon dslr adaptor to make a prime focus set up for Nikon d5500 and Skywatcher 200PDS Newtonian scope?

    Answer rated: 3
    You can use this nosepiece and any T-2-ring to equip your camera with a standard 2" nosepiece and insert it into your telescope like any 2" eyepiece.

    Please check the manual of your telescope to see if it is suited for astrophotography - at some Newtonian telescopes, you need to remove some adapters from the focuser to reach focus; this should be described in the manual of the telescope. We do not sell Sky-Watcher-telescopes, but as far as we know, the 200PDS is one of the telescopes where you have to remove an extension from the focuser.
    Answer by: Baader Web Team (Admin) on Jun 11, 2018 8:14:00 AM
  163. Rated: -1
    6/8/2018 7:04 PM Baader Clearglass Filter (C) for focusing / dust protection
    Is the transmission curve for the clear glass filter correct? Your description says it is IR blocked but the infrared transmission is very high. Is this a very thin OD 0.1 coating so it does not affect the other colors?

    Answer rated: 0
    The transmission curve is correct, the description however was not, thanks for bringing this to our attention. We changed the description accordingly. The filter serves to keep focus due to the same mechanical thickness as other filters of the same size, as well as for dust protection.
    Answer by: Baader Web Team (Admin) on Jun 13, 2018 2:50:00 PM
  164. Rated: -2
    6/7/2018 5:00 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Do you manufacture a Steeltrack to fit onto a flat plate of larger telescopes? I need one to fit a 20" RC telescope that has a machined flat back-plate that fits flush onto the telescope and is then drilled to accommodate different equipment. Ideally we would like a Steeltrack attached to a flat plate with mounting holes that we can then attach to the telescope back-plate by four screws.

    Answer rated: 11
    Please spend a look at this Item:
    https://www.baader-planetarium.com/en/flat-base-plate-(96x96mm)-for-bds-nt.html
    Actually it is made for the BDS NT (Newton) and is 5mm thick. As you can see in the technical drawing the 88mm diameter
    dovetail is 7mm high so the body will overhang the 2mm at the telescope side. Certainly it should be easy to fill this distance
    to make it possible using the BDS RT onto the telescope. Anyway please see the drawings carefully that may be the inner
    tube of the BDS don´t collide.
    Answer by: Baader Web Team (Admin) on Jun 7, 2018 9:07:00 AM
  165. Rated: 6
    6/6/2018 1:53 PM Glasspathcorrector® 1:1,70 for Baader Maxbright Binocular
    Hi, what is the difference (technical and in pratical use) between this correctors, #2456316 1.7x and #2456305 1.8x? Thank you.

    Answer rated: 5
    The 1.8x for refractors and SCTs must be inserted rather deep into the focuser, so it doesn't work with all SC-telescopes (because of the inner diameter) and refractors (if they have internal field flatteners, Petzval-elements or similar). It also requires the use of the T-2-mirror #2456100 with an optical length of 43mm to keep the correct distances.

    The 1.7x is more flexible: It can be used with other star diagonals, too, as well as behind e.g. a Herschel Wedge for solar observation. It is also mounted the same way as the 1.2x, which may be more comfortable if you work with different glass path correctors to achieve several magnifications. That's why we usually recommend the 1.7x
    Answer by: Baader Web Team (Admin) on Jun 6, 2018 3:45:00 PM
  166. Rated: 6
    6/6/2018 8:49 AM Baader 45 ° Maxbright Amici prism 1¼ "with built-in 2x glass path corrector
    May I please ask why this will not work with the Grossfeld Mark V Binoviewers with a quick changer ? Is it because of the weight of the Binoviewers ?

    Answer rated: -4
    You can actually use the MaxBright Amici with the Großfeldbino, too, but we do not recommend it - the quality is not on the same level as the Bino-viewer.

    The Amici has got small prisms, so you'd have a smaller field of view, and - most of all - it is only designed for terrestrial observations at magnifications of no more than 80x, just like most spotting scopes

    To make use of the quality of the Grossfeldbino, you should use a seperate glasspath corrector and either a T-2-prism (for the shortest possible connection) or an Amici which is designed for astronomical use like #2456130 (Baader T-2 / 90° Baader Roof-Prism).
    Answer by: Baader Web Team (Admin) on Jun 6, 2018 10:57:00 AM
  167. Rated: 2
    6/4/2018 5:21 PM Baader Sky Surfer V illuminated finder
    Is it possible to mount the scope on the farther end of the Celestron SCT 8", using the single dovetail screw instead of the two screws or would that be too much weight for the single screw to hold?

    Answer rated: 6
    I fear one single screw is not enough to mount the finder proper on the tube because of torsion. It is for sure too much for the small screw
    which have to be over tighten and damage the tube thread.
    Answer by: Baader Web Team (Admin) on Jun 8, 2018 9:15:00 AM
  168. Rated: -8
    6/3/2018 6:51 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I have a Canon EOS 1000D digital camera. Please advise the adapters I would need to connect my Mark IV universal zoom to this camera.

    Answer rated: -16
    For an APS-C-camera, you need:
    - T-Ring for your camera, for Canon: Baader T-Ring Canon EF (EOS) to T-2 # 2408319
    - 30mm T-2 extension tubes or longer, e.g. 2x Baader T-2 / 15 mm Extension Tube (T-2 part #25A) # 1508154 or one 15mm-tube and a T-2-Quickchanger (either Baader TQC/TCR Heavy duty T-2 Quick Changing System (T-2 part #06A & #07) # 2456322 or Baader Complete T-2 Changer System (T-2 parts #06 & #07) # 2456321)
    - Baader Hyperion T-Adapter M43i / T-2a (M42x0.75) # 2958080 to equip the eyepiece with a T-2-thread

    We have also described the adaptations (including formulas to describe the calculation of the magnification) 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
    and in page 8 of the manual of the Hyperion Zoom at
    https://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf
    Answer by: Baader Web Team (Admin) on Jun 4, 2018 8:50:00 AM
  169. Rated: 5
    6/1/2018 6:45 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    I have an older Meade LX200 7" Maksutov telescope. Can I use the Alan Gee telecompressor with it, both visually and photographically? What additional tubes or accessories would I need?

    Answer rated: 1
    The Alan Gee was designed for Schmidt-Cassegrains with f/10. We haven't had the chance to test it at f/15, and we don't have a Meade Mak here to test it, so unfortunately we can't give you a definite answer.

    But usually, it's much easier to use a lens at a slower f/ratio than it it was desingned for, than to use it at a faster f/ratio.

    For the adaptation to SC-threads or 2"-focusers, please take a look into the manual which you can find in the download section of the website.
    Answer by: Baader Web Team (Admin) on Jun 4, 2018 9:02:00 AM
  170. Rated: -6
    5/29/2018 12:40 PM Baader 2" ClickLock Diagonal Mirror
    When mounting the diagonal on Celestron Edge HD 8" SCT, what's the optical path difference between:
    - Using #2956220 Clicklock-SC
    - Directly attaching the diagonal to the telescope using #245827 SCT lockring?

    Answer rated: 9
    To mount the star diagonal onto the OTA with the locking ring inbetween you have to unscrew the 2" nose piece anyway and also the ClickLock
    from the star diagonal body. Because of the mirror locl knobs there is no other way to mount it, also the panning is limitted by the mirror lock
    knobs and/or the focus wheel.

    When using a regular SC-ClickLock 2956220 and the star diagonal as it is you´re better according the back focus length of the EdgeHD.

    Answer by: Baader Web Team (Admin) on May 29, 2018 4:35:00 PM
  171. Rated: -18
    5/29/2018 10:50 AM Baader UV/IR Cut / L-Filter
    Hi, I am using a ZWO178MM camera for lunar and solar imaging, should I be using the uv/ir filter when imaging the moon or sun ? Or should I be using IR pass filter ? Thanks.

    Answer rated: -9
    To our knowledge ZWO cameras have the UV/IR- blocker coating applied onto their optical window.
    So there should not be a second such filter necessary.

    The IR-pass would not block the UV-side - so it would not be applicable here.
    Answer by: Baader Web Team (Admin) on May 30, 2018 8:22:00 AM
  172. Rated: 2
    5/29/2018 10:48 AM Carl Zeiss 1¼" Abbe Barlow lens 2x
    When I use the barlow and Varilock does it work like a zoom eyepiece? Is there anything else I need? Thanks.

    Answer rated: 4
    No - you could not attain the broadness of magnification that you can reach with a zoom in the first place - and changing magnification with threading the VariLock up and down would be very tedious and time consuming. And you would need about three VariLocks in a row to broaden the magnification range anywhere near.

    Also - a barlowlens may work well in a range of 2x to 3x (with the Zeiss being even somewhat better) - but still it is not the same quality as what you can do with a high quality zoom, were several lens groups are moving up and down to optimize optical performance.
    Answer by: Baader Web Team (Admin) on May 30, 2018 8:21:00 AM
  173. Rated: 4
    5/28/2018 5:36 PM Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp
    PRISM-2Z 2456117 (2 inch diagonal with zeiss prism) I have a Celestron Evolution 9.25, with 2" visual back. Can I remove the nose piece and screw this diagonal directly onto my 2" visual back and use the lock ring LRING 2458270? Thank you. Jeff

    Answer rated: 2
    Yes this is right when you unscrew the 2" nosepiece a 2" SC thread is released. With the help of the locking ring you´re able to mount
    the diagonal onto the OTA: https://www.baader-planetarium.com/en/baader-2%22-nexstar-locking-ring..html
    Answer by: Baader Web Team (Admin) on May 29, 2018 9:48:00 AM
  174. Rated: -2
    5/26/2018 11:04 PM Morpheus® 76° eyepiece set (complete)
    I have Orion 16 inch dob go to scope,would like a good set of baader eye pieces in 2 inch size,for planets and deep space and eye filter to could you recommend a set or seperat pieces for me please,need your help! And want to see the moon close up what magnification is best for this scope?thank you very much



    Answer rated: 1
    For such a fast telescope with f/4.4, we'd recommend for every eyepiece - no matter by which manufacturer - the use of a coma corrector. The MPCC in its visual configuration can remain in the focuser, and you can use its 1,25" eyepiece clamp. All Morpheus with the exeption of the 17.5mm need the same distance from the MPCC, so you don't have to change the setting. The MPCC also doesn't change the focal length of your telescope. You can find it here: https://www.baader-planetarium.com/en/2%22-mpcc-mark-iii-(multi-purpose-coma-corrector-for-newtons).html#574=926

    I'd recommend e.g. a set of 14mm (128x), 9mm (200x), 6.5mm (276x) Morpheus - they can be used without changing the MPCC. The 4.5mm would give you 400x, which may be too much magnification because the seeing often sets a limitation at around 300x - of course, this depends highly on your observation place.

    Then, you need in addition an eyepiece for overview - if you have got a really good, dark sky, you can youse the 31mm Hyperion which will give you an exit pupil of 7mm - but if your sky is brighter or your pupils can't open to 7mm, this will be too much, and you'd need something around 25mm. For many locations, 7mm exit pupil are too large today.

    On the other hand, the 14mm Morpheus will give you ca. 0.6° field of view (at 3.15mm exit pupil) and the 17.5mm 0.74° (at 4mm exit pupil), which may be sufficient to find and enjoy many objects. To select an eyepiece for overview, you'd need to know the limiting magnitude of your typical sky (which is more or less equal to the largest useful exit pupil - if you can only see stars to magnitude 5, you shouldn't use larger exit pupils than ca. 5mm) and how wide your pupils can open. The exit pupil is calculated as telescope aperture in mm divided by the magnification.
    Answer by: Baader Web Team (Admin) on May 28, 2018 8:26:00 AM
  175. Rated: 2
    5/25/2018 9:15 PM ASTF: AstroSolar Telescope Filter OD 5.0 (80mm - 280mm)
    I recently received an ASTF 200 mm filter. The film is stretched tight as a drum and appears like a smooth mirror, contrary to how the documentation states it should be installed. Is this normal, or did I receive a defective unit?

    Answer rated: 4
    This is perfectly alright.The ASTF-filters are mounted onto a loose ring that has the same expansion characteristics as the film itself.
    for this reason we can mount these filters with less ´"waivyness" then the less expensive filters that are mounted onto the cell itself.

    Try it out - we very much hope you will be pleasantly surprised about the image quality.
    Answer by: Baader Web Team (Admin) on May 30, 2018 3:15:00 PM
  176. Rated: 3
    5/25/2018 5:17 PM Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp
    Does the diagonal have an eyepiece stop?

    Answer rated: 1
    No - the ClickLock-receptor is designed to accept eyepieces up to 35mm sleeve length plus 8mm for an eyepiece filter and stay flush with the full length of the receptor. The ClickLock was designed to stay as short as possible to not eat up too much backfocus.

    You could have the eyepiece sleeve plus mounted filter reach up to 5 mm into the housing without touching the mirror. We did allow this to happen in order to provide maximum depth for eyepieces.
    Answer by: Baader Web Team (Admin) on May 30, 2018 3:16:00 PM
  177. Rated: -2
    5/25/2018 4:24 PM Mark V Großfeld (Giant)-Binocular
    What's the desired way to attach this binoviewer to the 2" (not T2) diagonal with ClickLock?

    Answer rated: 1
    Please take a look to this adapter for connecting the Bino into a 2" ClickLock:
    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
    Respectively for the 1,25" ClickLock see this Item:
    https://www.baader-planetarium.com/en/baader-nose-piece-1%C2%BC%22--t-2-(t-2-part-14).html
    Answer by: Baader Web Team (Admin) on May 25, 2018 4:47:00 PM
  178. Rated: -2
    5/25/2018 4:19 PM Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp
    How come the BBHS 2" Prism ClickLock diagonal has 100mm optical tube legnth, while the seemingly identical mirror BBHS diagonal has 112mm? Is that an error?

    Answer rated: 14
    The mirror lays deeper in the body at the back plate so the light has to go a longer way. The prism is set to the right angle part of the body therefore
    the light has to go a shorter way.
    Answer by: Baader Web Team (Admin) on May 25, 2018 4:37:00 PM
  179. Rated: 2
    5/12/2018 10:14 PM 2" BDS-SC Baader Diamond Steeltrack® Focuser
    Do you think that 2" BDS-SC Focuser can replace the Zero Image Shift Microfocuser on 10" LX-200-ACF (GPS + AutostarII / Dated 2009) from Meade ? Or can you propose another solution with fine-focus mechanism, even it is in manual mode ? Thank you very much for your answer.

    Answer rated: -4
    Yes, the BDS-SC will work on a Meade LX-200. We actually have a testreview with images for this, unfortunately only in german language. Please use Google Translate or a similar tool to translate it. Here is the PDF: https://www.baader-planetarium.com/de/downloads/dl/file/id/174/product/2856/bds_sc_diamond_steeltrack_am_meade_lx_200_teleskop.pdf
    Answer by: Baader Web Team (Admin) on May 14, 2018 2:51:00 PM
  180. Rated: -17
    5/9/2018 9:46 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    Hi
    I have a Hyperion Universal Zoom Mark IV. Can I get an adapter for my Optolyth APO TBG 100 HDF ?

    Answer rated: 11
    There are so many spectives/brands on marked with different (proprietary) threads etc. So please try to contact a dealer who is selling this
    spective to let you know if our zoom eye piece may is matching with it. You can see our technical specifications here:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/357/product/3117/hyperion_universal_zoom_mark_iv_specifications_drawing_and_technical_data.pdf
    Answer by: Baader Web Team (Admin) on May 11, 2018 12:33:00 PM
  181. Rated: -3
    5/9/2018 1:54 PM Baader 2" ClickLock eyepiece clamps
    Is the M68 thread on the 2956268 Clicklock adaptor 1.0 mm pitch or 0.75 mm pitch?

    Answer rated: -11
    The #2956268 M68 ClickLock has a 1.0 mm pitch (Zeiss Standard). We are working on a version with 0.75mm pitch which will probably be available in a few months
    Answer by: Baader Web Team (Admin) on May 9, 2018 5:19:00 PM
  182. Rated: 7
    5/4/2018 11:04 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    Does the Alan Gee come with the spacer tubes described in the manual or are those purchased separately?

    Thank you.

    Answer rated: 2
    The two 19mm spacer tubes are included; only the various T-2-extensions are not included.
    Answer by: Baader Web Team (Admin) on May 7, 2018 8:21:00 AM
  183. Rated: -26
    5/2/2018 11:37 AM Baader U-Venus-Filter (350nm)
    1. Can I mount Baader U-Venus Filter on Canon EF 50mm f/1.8 STM Lens which has a 49mm thread? If I can, which attachments should I buy?

    2. Can I take UV portraits of peoples faces with a Canon T1i (converted to full spectrum) + Canon EF 50mm f/1.8 STM Lens + Baader U-Venus filter?

    Answer rated: 9
    To mount the 2" UV filter in front of your camera, you need:
    - Baader DSLR-2" Filter Holder M48/SP54 # 2408166
    - Baader Hyperion DT-Ring SP54/M49 for DTAdapter II&III and Hyperion Eyepieces # 2958049
    Then you can attach it in front of your lens with the M49-filter thread. For other lenses, we have different stepper rings starting with SP54

    If the built-in UV/IR-filter of your camera has been removed, then the sensibility in UV depends only on the UV-transmission (and sharpness) of your lens in UV. You'll have longer exposure times, as only the blue-sensors of your colour-camera will receive light, but it should not be worse than e.g. infrared-photography.

    A non-modified DSLR (with the UV-filter still inside) will not work.
    Answer by: Baader Web Team (Admin) on May 2, 2018 12:15:00 PM
  184. Rated: -7
    4/19/2018 4:54 PM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    I would like to connect the MPCC Mark III to a ZWO ASI1600MC-Cooled camera that has 6.5mm back focus.

    Do you sell the necessary spacers to do that?

    Answer rated: 10
    Try to use the camera with adapter to get the 17,5mm back focus length. In addition with this ring (set to 37,5mm) you´ll reach requiered 55mm of the MPCC: https://www.baader-planetarium.com/en/baader-varilock-46-lockable-t-2-extensiontube-29-46mm-with-spanner-tool-(t-2-part-25v).html
    Answer by: Baader Web Team (Admin) on Apr 20, 2018 8:39:00 AM
  185. Rated: 4
    4/16/2018 8:31 PM Baader Sky Surfer V illuminated finder
    Will the DSLR hot-shoe adapter that works with the Sky-surfer III, work with the Sky-surfer V? If not, where can I obtain a hot-shoe adapter for the Baader Sky-surfer V?
    Thanks for any information.

    Answer rated: -8
    You cannot mount the SkySurfer V on the hot-shoe which can take the SkySurfer III. We don´t know a solution for it but fear that the big
    SkySurfer V couldbe too heavy for it and may damage the camera body.
    Answer by: Baader Web Team (Admin) on Apr 17, 2018 4:53:00 PM
  186. Rated: -4
    4/13/2018 5:58 PM Baader Prism Diagonal T-2/90° 32mm
    I am interested in using the T-2 32 mm prism diagonal on my Orion ED80 f7.5 600mm f.l. refractor (bought in 2009). It has a 2" Craford focuser that I would attach it to. I would like to know what adapter I need to attach it to the focuser?

    The focuser comes with a long 2" eyepiece holder that I want to remove to reduce the focal distance to the point of attachment to the focuser. That leaves the focuser's exterior threads exposed. The exposed threaded tube's dimensions are: ID = 2" OD = 2-1/8" exposed length is 3/8". I can't find a spec on the threads. but I count 10 threads in that 3/8".

    My goal is to gain inward focus, increase contrast and clarity, and convert to the clicklock eyepiece holder. My largest eyepiece is a 32mm Optiluxe. As light conditions limit to planetary, I doubt I would get a longer f.l. eyepiece.

    Answer rated: 9
    To attach the prism to a 2" eyepiece clamp, you need the
    Baader 2" / T-2 Nose Piece and Camera adapter (T-2 part #16) # 2408150

    Orion should use the same focusers as Celestron and Sky-Watcher did on their ED80, so the Baader 2" Four-in-One Adapter M68 (Zeiss) / 2.7" (A.P.) / M60 (Vixen) / M56 (Synta) #2458190 should fit on your telescope, too.

    Answer by: Baader Web Team (Admin) on Apr 16, 2018 12:45:00 PM
    Answer rated: 5
    Thank you. Looking up the M68 thread definition, it seems to match my measured dimensions of the end of the OTA tube which I understand is made by Synta.
    Answer by: Stephen Jackson on Apr 19, 2018 9:39:17 AM
  187. Rated: 7
    4/13/2018 1:11 PM Steeldrive motor drive for classic Steeltrack focusers
    I have a Steeldrive focuser motor which works fine except that the temperature never has been detected by the handcontrol or SteelGo/ASCOM. The manual suggests to fasten some screws, which has been tried without success. Do you have a solution to this problem?

    Answer rated: 6
    Please try first to check the temperatur sensore by using a voltmeter. The sensore should give back different resistance value in ohm so
    you can see if the sensore is defect or may be something else.
    Answer by: Baader Web Team (Admin) on Apr 17, 2018 4:48:00 PM
  188. Rated: 6
    4/8/2018 3:29 AM Baader 2" ClickLock Diagonal Mirror
    How secure is the nosepiece when coupled to the diagonal body? Is there any risk of it loosening when subjected to heavy loads with the diagonal oriented horizontally?

    Answer rated: -4
    The nosepiece is extremely secure and is able to hold even very heavy payload. We've tested it with a C14, see here: https://www.baader-planetarium.com/media/wysiwyg/gross_BP28-AB2956100-06-ClickLockDiagonal-2inch.jpg (but this is not recommended for imitation).

    Also we recommend to check out this Youtube Review: https://youtu.be/oYoymtIT0ww
    Answer by: Baader Web Team (Admin) on Apr 9, 2018 9:25:00 AM
  189. Rated: 4
    4/7/2018 6:06 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Hi, I would like to purchase a Baader Diamond SteelDrive System Without Hand Control, part number 2957152 plus a Baader 2 Inch Diamond Steeltrack NT Focuser, part number 2957230. Can you tell me if this set up would fit a Skywatcher Newtonian 200p and then controlled through a laptop using Sequence generator pro without the hand controller.
    Hope you can help,
    Kind regards,
    Phil Rees

    Answer rated: -7
    The SteelDrive can be assembled to all kind of our BDS SteelTrack (NT, RT, SC). So far the SteelDrive isn´t available yet, also we cannot
    tell if//when the programmers from Sequence Generator will support it.
    Answer by: Baader Web Team (Admin) on Apr 10, 2018 9:24:00 AM
  190. Rated: -16
    4/3/2018 9:14 AM Hyperion Zoom 2.25x Barlow lens
    Can this zoom & barlow be used together on the Celestron regal m2 ed [ 65mm]

    Answer rated: -10
    Unfortunately it is not possible because the barlow pushes out the eye piece also need some more in travel space wich is not
    given with the spectiv. As the result you no more reach the focus. Anyway eye pieces with less than 6mm focal length are not
    suitable under real condition. The image gets too dark and the exit pupil too small.
    Answer by: Baader Web Team (Admin) on Apr 3, 2018 2:17:00 PM
  191. Rated: -4
    3/30/2018 10:07 AM Optical Wonder™ Cleaning Fluid
    Does the alcohol in Optical Wonder fluid damage or affect the coating of older Takahashi lenses, especially the FS102?

    Answer rated: -1
    To be sure please contact an autorized Takahashi dealer first that our Optical Wonder is ok as a cleaning liquit. So far we clean all
    kind of optics since years with great results and never had any difficulties. Also please take a look at our instructione for it:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/110/product/1661/cleaning_and_maintenance_of_optics_a_short_instruction_guide.pdf
    Answer by: Baader Web Team (Admin) on Apr 5, 2018 11:21:00 AM
  192. Rated: -3
    3/23/2018 10:15 PM Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21)
    Hello. I am interested in getting the Alan Gee Telecompressor, and would like to mount it using this Baader T Adapter (T-2 part #21). However, I also have the #2956220 SC / HD-Clicklock Eyepiece clamp for my Celestron SCT 9.25. I wonder if I can attach the Alan Gee to the T-2 Part #21 and then have the #2956220 Clicklock on top of it, to make it really easy to change from visual to astrophotography applications. What are additional components that I would need to reach focus with a ZWO ASI224MC Camera?

    Thank you for your help!

    Answer rated: -2
    Please note that the recommended distance between Alan Gee and the field stop of an eyepiece or a camera sensor is 121mm. It should not be much further away than ca. 130mm, otherwise the quality may suffer.

    The 2" SC/HD-Clicklock has got a length of 47mm, our 2"-mirrors ca 112mm, our 2" prisms about 100mm (both including their clicklock eyepiece clamps) and our 1.25"-T-2-prism 64mm incl. eyepiece clamp. So, it is okay if you use a 1.25" star diagonal, but with a 2" star diagonal, the Alan Gee will be too far away from the eyepiece.

    You can use the BTA (#21) and the Expanding Ring T-2f / M48m (T-2 part #29) #2458110 (optical length: 2.5mm) to attach the Clicklock to the BTA. But we'd recommend this only for 1.25" star diagonals.

    The ASI has got a backfocus of 12.5mm from the T-2-thread, so you need ca. 108.5mm of distance.

    If you attach the camera *directly to the BTA*, this can be achieved e.g. with
    - 2x 40mm T-2-extension tube (T-2 part #25B) #1508153
    - VariLock 46, lockable T-2 ExtensionTube 29-46mm (T-2 part #25V) #2956946
    This will give you a length of 109mm, or if you want the more precise, you can use
    - 1x 40mm tube
    - 2x 15mm tubes (#1508154)
    - 1x VariLock 46
    to give you 99-116mm.

    If you mount the Alan Gee in *front of the Clicklock*, you need e.g.:
    - Expanding Ring T-2f / M48m (T-2 part #29) #2458110 - optical length: 2.5mm
    - 2" SC-Clicklock - 47mm
    - Baader 2" / T-2 Nose Piece (T-2 part #16) # 2408150 - optical length: 2.5mm
    - 2 x 15mm T-2-extension tube (T-2 part #25A) # 1508154 - 30mm
    - Baader VariLock 29, 20-29mm (T-2 part #25Y) # 2956929 - set to 26.5mm
    - ASI cam - 12.5 mm
    This will give you the desired working distance of 121mm.
    Answer by: Baader Web Team (Admin) on Mar 26, 2018 11:55:00 AM
  193. Rated: 1
    3/22/2018 12:28 PM Baader T-Ring Canon EF (EOS) to T-2
    If I remove the bayonet Can #2458405 installs?

    Answer rated: 5
    If you want to connect a DSLR camera by using the M48 thread onto the 2" MPCC Mark III Newton Coma Correktor the back focus distance
    increases from 55mm to 57,5mm so you need a 2,5mm longer T2-Bajonet ring. Therefore we made the M48 spacer ring. Please see
    https://d3gqwrfrlgdnxc.cloudfront.net/media/extendware/ewimageopt/media/inline/8/1/2-mpcc-mark-iii-multi-purpose-coma-corrector-for-newtons-47b.jpg
    Answer by: Baader Web Team (Admin) on Mar 22, 2018 2:37:00 PM
  194. Rated: -12
    3/21/2018 10:02 AM 2" BDS-RT Baader Diamond Steeltrack Focuser
    Do you have an RT Adapter with a female 82mm x 1 connection on the OTA side please? It is to fit a TS-Optics PHOTOLINE 80 mm f/7 FPL53 Apo scope (Model NUmber TSAPO80F7).
    Thanks and regards
    Dave

    Answer rated: -9
    TS is offering a "M82i-M68a" adapter ring and then you´ll need this conversion ring:
    https://www.baader-planetarium.com/en/baader-m68-conversion-ring.html
    Now you´re able to screw the Diamond Steel track focuser onto your telescope.
    Answer by: Baader Web Team (Admin) on Mar 27, 2018 2:57:00 PM
  195. Rated: -5
    3/19/2018 6:15 PM Alan Gee Telecompressor Mark II (T-2 part #20)
    I would like to use the Alan Gee Telecompressor Mark II with my Celestron 9.25" SCT regular XLT Coatings version (not Edge version). I also have a Baader Planetarium 2 inch Clicklock Mirror Diagonal. Can I use this configuration for visual use? What kind of adapters do I need?

    Also, If I want to use the Alan Gee telecompressor for Prime photography using Barlows / Eyepiece Projection, do I need to get additional adapters?

    Thanks!

    Answer rated: -3
    You have several options to use the Alan Gee for visual use; it shoud be mounted ca. 121mm in front of camera sensor or field stop. That's the ideal distance, but it doesn't have to be reached perfectly.

    We have described them in the manual at https://www.baader-planetarium.com/en/downloads/dl/file/id/213/product/1197/baader_alan_gee_ii_telecompresor_shapley_lens_f_5_9_manual_and_applications.pdf

    To use it with any of our 2" star diagonals, you need (as shown in Fig. 3 on page 2 of the manual) to remove the 2"-nosepiece from the mirror and replace it with
    1) Baader Expansion Ring 2"a/T-2i with 1mm optical path length (T-2 part #28) # 2958242
    2) the Alan Gee (you may have to remove the two extension tubes to achieve the best distance. The 2" Clicklock mirros has got an optical length of 112mm, so you probably have to remove both)
    3) either
    3a) Baader 2" / T-2 Nose Piece and Camera adapter (same as used by SBIG) (T-2 part #16) #2408150 if you want to insert the star diagonal into a 2" eyepiece holder or
    3b) Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21) # 2408160 if you want to screw it directly onto your C9 1/4.

    If you want to insert the Alan Gee into the telescope itself, you need the Centering ring for Alan Gee II Telecompressor # 2454410 (for C9 1/4), then you can lock it in its position with the standard visual back of your telescope.

    I would not recommend combining the Alan Gee with a Barlow lens - you would use one optical element to shorten the focal length and then another one to extend it again. You'd be better of if you use instead one Barlow and adapt its magnification. The Q-Barlow 2.25x / 1.3x # 2956185 e.g. is designed for 1.3x or 2.25x, depending on where it is mounted, and the VIP 2x modular barlow lens, visual and photographic # 2406101 is designed for magnifications of 2x and more, depending on the distance. For calculating the different Magnifications with the VIP-Barlow, please check this PDF: https://www.baader-planetarium.com/en/downloads/dl/file/id/240/product/1062/calculating_different_magnifications_with_the_vip_barlow.pdf
    Answer by: Baader Web Team (Admin) on Mar 21, 2018 12:22:00 PM
  196. Rated: -16
    3/16/2018 7:59 AM Baader H-alpha 7nm CCD Narrowband-Filter
    Can you suggest a clear parfocal filter that can help reaching focus with the 7nm 2" version?

    Answer rated: -2
    When the light beam goes through a filter the focus point get lay out by refraction to extra focal about a 1/3 of the thickness of the filter. Our clear glass filter: https://www.baader-planetarium.com/en/baader-clearglass-filter-(c)-for-focusing--dust-protection.html
    in 2" size has the same thickness like the 7nm Ha filter in 2" and by that it is parfocal. Just click the link <spezification> to find that info when
    you´re not sure. The focus shift for 2mm is about 0,7mm and of course the 3mm is then 1mm.
    Answer by: Baader Web Team (Admin) on Mar 16, 2018 8:34:00 AM
  197. Rated: 1
    3/15/2018 6:12 PM Telecentric System TZ-2 (2x focal length)
    Is it possible to combine the tz-2 + tz-4 with the Daystar Quark combo?

    Answer rated: 7
    We have not tried if this works and we cannot guarantee it. The Quark already has a built in TZ. Mounting another focal enght extending lens systems in a row with the built in TZ may lead to trouble reaching the focus and it may degrade the image. Furthermore such a high magnification leads to a very dark sun
    Answer by: Baader Web Team (Admin) on Mar 16, 2018 9:28:00 AM
  198. Rated: 0
    3/15/2018 12:09 PM PlaneWave L-Series Direct Drive Mount (varoius versions available)
    Hello,
    Is this mount L350 OK for 60 minute exposure astrophotography?
    Is guide scope tracking suitable for this mount and what about de-rotation?
    Thank you

  199. Rated: -4
    3/14/2018 1:36 AM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    Is the required 55mm distance to the coma corrector measured from the front of the focal reducer or from the location of the CMOS sensor inside the camera housing?.

    Answer rated: 1
    Please see this drawing of the MPCC to find out the surface from where the 55mm back focus is meant:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/343/product/3004/mpcc_backfocus_from_t_2_and_m48_mounting_surfaces.pdf
    Answer by: Baader Web Team (Admin) on Mar 14, 2018 8:34:00 AM
  200. Rated: -2
    3/6/2018 11:05 PM Baader DSLR-2" Filter Holder M48/SP54
    Hi, could you please tell me what products I would need to fit a 2" filter to a lens of 40.5 mm diameter?
    Thanks!

    Answer rated: 3
    Unfortunately, we do not have a stepper ring for M40.5. You need either a stepper ring from M40.5 to SP54, or to one of our stepper rings.
    We do have:
    M46: DT-ring SP54 / M46 #2958046
    M49: DT-ring SP54 / M49 #2958049
    M52: DT-ring SP54 / M52 #2958052
    M55: DT-ring SP54 / M55 #2958055

    So, you need:
    - Baader DSLR-2" Filter Holder M48/SP54 #2408166
    - One of the stepper rings above. They all have a female (inner) SP54 thread and a male (outer) thread
    - A stepper ring from M46, M49, M52 or M55 to your M40.5-thread. One of these stepper rings should be easily available at your preferred photo-dealer
    Answer by: Baader Web Team (Admin) on Mar 7, 2018 12:06:00 PM
  201. Rated: 4
    3/5/2018 2:55 PM Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 und S52
    Hi there - I'm a little confused - in the description at the top it says that from the front support surface to the image plane of the camera, this represents 55mm. However, this ring is only meant to add 8.3mm to the 18mm backfocus of e-mount cameras. That would give a total backfocus of 26.3mm...so my question is if I want to connect my e-mount camera to the back of a field flattener which requires 55mm backfocus, is this adapter enough, or do I need to add approx 28.7mm of spacers? Thank you and sorry for the long question.

    Answer rated: -7
    Because of a mistake by translation our description of the Item was wrong. You´re right when you say that the back focus length is 26,3mm
    (-E- for eighteen milimeter from the camera body plus 8,3mm from the E-bayonet ring) You can increase this length with this rings:
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/astro-t2-system/baader-varilock-46-lockable-t-2-extensiontube-29-46mm-with-spanner-tool-(t-2-part-25v).html
    https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/astro-t2-system/baader-varilock-29-lockable-t-2-extensiontube-20-29mm-with-spanner-tool-(t-2-part-25y).html
    You need 28,7mm more distance to reach the well known 55mm DSLR distance back focus. Please hold in mind that 2mm thick filter
    will lay out the focus point of about 0,7mm extrafocal. Also please notice that T2 rings will obstruct the image corner of full format sensores.
    Answer by: Baader Web Team (Admin) on Mar 6, 2018 8:51:00 AM
  202. Rated: -2
    3/2/2018 11:44 PM 6,5 mm Morpheus® 76° widefield eyepiece
    1. Do all of the morpheous eyepieces I would order from you now come with M43 extension included?

    2. What is the cost/price in US dollars, as I live in the U.S.? Does this price include all taxes, duties, and shipping charges (like ground, not air). I would NOT want the expensive shipping option.

    3. If I order from you the day I get your response, what is the timeline (approximate date) on when I could actually recieve them?
    My address is 3220 Alden Drive, Lansing, Michigan, U.S., 48910

    Thank you, and Best Regards,
    Chris Morrison

    Answer rated: 0
    Yes we sell all Morpheus eye pieces with M43 extension.
    If you want to buy please contact our dealer in the USA www.alpineastro.com
    Answer by: Baader Web Team (Admin) on Mar 5, 2018 8:48:00 AM
  203. Rated: 3
    3/2/2018 1:58 PM Baader 2" ClickLock eyepiece clamps
    I want to use the M54 2" adapter (2956254) on my Skywatcher Dob. I have a Coma Corrector with a very long nose piece (85 mm). Is there any internal stop on this adapter that would prevent it from seating all the way in? I want the nose piece of the CC to completely pass thru this adapter. Thanks

    Answer rated: -4
    This ClickLock has no stop inside and by that 2" barells etc. can pass thru.
    Answer by: Baader Web Team (Admin) on Mar 2, 2018 4:13:00 PM
  204. Rated: -1
    3/2/2018 9:35 AM Baader 2" ClickLock eyepiece clamps
    Click-lock with M54x0.75 male thread ? It is the thread used by telescopes such as the William Optics ZenithStar 61 APO and TS-Optics 60mm f / 6 FPL53 Apo

    Answer rated: 5
    Please excuse we don´t sell Wiliam optic telescopes so we don´t know what thread is on the focuser. So far the ClickLock #2956254 is made
    with 1mm pitch. We´re planing to have a M54x0,75 ClickLock soon.
    Answer by: Baader Web Team (Admin) on Mar 6, 2018 9:50:00 AM
  205. Rated: -5
    2/28/2018 9:47 PM Hyperion Zoom 2.25x Barlow lens
    Is the Main Body of the barlow threaded for 1 1/4" filters?
    Thank you.

    Answer rated: -10
    The lens main body is too small for an 1,25" filter thread
    Answer by: Baader Web Team (Admin) on Mar 1, 2018 12:49:00 PM
  206. Rated: -12
    2/26/2018 12:00 AM Baader U-Venus-Filter (350nm)
    Would it be possible to custom order this filter in 77mm threaded for DSLR lens filter?

  207. Rated: -11
    2/24/2018 9:22 PM Baader 2" ClickLock eyepiece clamps
    For telescope
    https://explorescientificusa.com/collections/ed-apo-fcd100-triplet-series/products/127mm-fcd100-apochromatic-refractor
    which has 2.5" HEX Focuser, which 2" Clicklock Eyepiece Clamp would be appropriate?
    Also which diagonal would you recommend for use to terminate with a clicklock eyepiece also. Would you suggest attaching the diagonal directly without a compression or clicklock fitting?
    thanks

    Answer rated: 1
    Please check your focuser if there is a M68 or M54 thread. Unfortunately Explore Scientific has changed the pitch of the thread that most/all adapter
    rings wont fit. At the moment we´re planing to supply ClickLock for the none-standart M68/M54 but it will take some time. We´d prefer to use also
    a ClickLock on the focuser, otherwise you´ll need a locking ring. Depending on your requirements this diagonals surely can be a good partner:
    https://www.baader-planetarium.com/en/baader-2%22-clicklock-diagonal-mirror.html
    https://www.baader-planetarium.com/en/baader-2%22-bbhs-r-mirror-diagonal-with-2%22-clicklock-clamp.html
    Answer by: Baader Web Team (Admin) on Feb 26, 2018 9:40:00 AM
  208. Rated: -9
    2/24/2018 5:06 AM 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons)
    How would I go about using the MPCC Mark III with a Sony A7s (which is a mirrorless DSLR)? Thanks!

    Answer rated: -8
    The MPCC can illuminate sensores up to APS-C size but not full frame as your camera is. If you do want to use it you´ll need this rings:
    https://www.baader-planetarium.com/en/baader-t-ring-sony-enex-bayonet-with-d52m48-to-t-2.html
    https://www.baader-planetarium.com/en/baader-t-2--15-mm-extension-tube-(t-2-part-25a).html
    https://www.baader-planetarium.com/en/baader-variable-locking-t-2-extension-(12-16mm)-incl.-lock-ring-(t-2-part-33).html
    The 12-16mm has to be set to 13,7mm then you get in summary the required 55mm distance from sensore to the MPCC. Actually the
    T2 extension rings will obstruct the image because it is a bottle neck but you have to do a crop down to APS-C at the picture anyway.

    Answer by: Baader Web Team (Admin) on Feb 26, 2018 9:07:00 AM
  209. Rated: 0
    2/22/2018 2:31 AM Baader 2" ClickLock eyepiece clamps
    Hi,
    I have two questions about the 2" ClickLock 2" CL-Extension 47mm.

    1) How long is the overall length of this adapter including the 2" nosepiece. I know the optical length is 47mm, so how long is the attached 2" nosepiece?

    2) How deep can a 2" eyepiece be inserted into this adapter? I have a 2" eyepiece with a 38mm nosepiece. Will I be able to seat it all the way in?

    Thanks,
    Steve

    Answer rated: -30
    The length over all is 74mm so the 2" nose piece telescope side is 27mm long (74mm-47mm). The ClickLock body takes 2" barells up to 36mm deep.
    Answer by: Baader Web Team (Admin) on Feb 22, 2018 8:39:00 AM
  210. Rated: -3
    2/18/2018 2:06 PM Baader 36mm Hyperion Aspheric 2" Eyepiece
    Can I use with Celestron 8 SC Edge HD ?

    Answer rated: 10
    The eye pieces works well with the C8 Edge HD and gives you a magnification of 56 by exit pupil of 3,6mm - fine for deepsky . Please hold in
    mind that the field of view decreases from 72° (2") to 50°(1,25") because the 1,25" barell is a bottle neck. Try using it with 2" barell/star diagonal.
    Answer by: Baader Web Team (Admin) on Feb 19, 2018 12:36:00 PM
  211. Rated: -4
    2/14/2018 3:17 PM Baader DSLR-2" Filter Holder M48/SP54
    I want to get your 2" filter and place it in my imaging chain with standard 48mm 0.75mm threads on both sides (one male one female). It looks like your 2" filter uses 48mm threads with nonstandard pitches, so I need to buy adapters but I cannot figure out which adapters to get. Thanks!

    Answer rated: -5
    As previously answered on another question, our so-called "nonstandard pitch" differs only very slightly to allow adaptation of Baader filters to the many different pitch variations. So we are very confident that our filters will fit into your image chain.
    Answer by: Baader Web Team (Admin) on Feb 14, 2018 3:23:00 PM
  212. Rated: -5
    2/13/2018 7:14 PM Fluorite Flatfield Converter (FFC) / 3x-8x
    What is the Strehl ratio of the FFC at 393nm? I know this is not designed for solar use, but I really need a corrector optic for the calcium k-line wavelength because almost all telescopes have zero correction below 400nm. I would like .95 strehl or greater at 393. anything less than .9 is unacceptable. I do have suitable energy rejection filters and a thermal shield, so there will be no exposure damage thresh hold. You guys make a hydrogen alpha imaging telecentric but do not make a k-line telecentric, and there are none on the market. I must either make one myself or find an optic somewhere.

    Answer rated: 2
    The FFC is NOT a telecentric system. Also it is NOT meant to be subjected to UV-wavelengths without prefilter such as an AstroSolar Film. And then the transmission at CaK will be much too low.

    Also an auxillary optical system cannot correct the missing optical correction of the telescope optics (unless it is specifically designed for this purpose).
    Answer by: Baader Web Team (Admin) on Feb 14, 2018 9:27:00 AM
  213. Rated: -11
    2/12/2018 3:15 PM Baader UV/IR Cut / L-Filter
    I'm setting up a Celestron RASA for one shot colour imaging with an APS-C format cooled CMOS astrocamera and Baader UFC spacer stack.
    I want to remove the 2mm thick built-in RASA glass filter plate and replace this with an IR-cut 2" filter with coating stack designed for F2. The latter will be positioned in the UFC. I'm concerned not to interfere with the nominal BFL of 72.8mm by changing optical elements. I think the correct Baader filter to use in this case is 2459207A whose thickness is not specified on the product page. Can you confirm is this the right filter please?
    Thanks

    Answer rated: -15
    I made an error. The correct Baader part no. for a 2" UV/IR cut filter is in fact 2459210A not the number I gave in my question. This is suitable for the RASA.
    Answer by: Anthony Owens on Feb 13, 2018 2:15:56 PM
    Answer rated: -18
    The description for the filter thickness is to find by the button SPECIFICATION for the certain Item. The filters are 2mm thick from 1,25" up
    to 2". Filters from 50,4mm and bigger are made 3mm thick.
    Answer by: Baader Web Team (Admin) on Feb 12, 2018 3:27:00 PM
  214. Rated: 11
    2/12/2018 12:22 AM Baader DSLR-2" Filter Holder M48/SP54
    Hello, could you tell me the exact products I need to fit a 2” filter to a DSLR lens of 58mm diameter please?

    Answer rated: -2
    You need the following two parts:

    # 2408166 - Baader DSLR-2" Filter Holder M48/SP54
    # 2958058 - Baader Hyperion DT-Ring SP54/M58

    Then you can mount your 2"-filter onto the M58-filter-thread of your lens.
    Answer by: Baader Web Team (Admin) on Feb 12, 2018 8:20:00 AM
  215. Rated: 2
    2/9/2018 11:44 AM Fluorit Flatfield Converter (FFC) / 3x-8x – Weltbeste Barlowlinse
    Two Questions: Will this Barlow be effective at 2X? How can this lens provide up to a 90mm diameter image circle when the lens itself is only 42mm(?) in diameter and the light path is convergent, not divergent, between the lens and the image plane?

    Answer rated: 1
    The FFC was designed by Carl Zeiss, to cover the full 90 mm image diagonal of a 6x6 emulsion film camera and provide a flat field. This is especially valid at the 4x factor.

    A barlow lens makes individual light cones narrower, but increases the off axis light beam angles strongly since it magnifies the image which leads to a divergent field of light. So with its 4x magnification the projected field increases 4 times also, being designed to project the advertised 90mm in perfect quality. Although no regular glass combination would allow to design a divergent bundle of light to emerge from the lens groups and still retain the full apochromatic properties of a precision objective lens - such as the APQ-lenses from Carl Zeiss were. It indeed does take two differently radied cemented groups of genuine Calciumfluorite (CaF2) - crystal with equally exotic partner glasses, to retain the full apochromatic properties. There is no other lens design existing having the same complexity.

    However - the days of emulsion film are gone since long - and modern chips are much smaller still. For this reason the factor could be reduced even to 2,5x instead of 4x by moving the image plane much nearer towards the exiting lens surface than those ~150 mm required for the 4x factor. In this way, the perfectly flat and apochromatic field would be reduced to only cover a 25 mm image circle with perfection.
    When aiming to 2x it can be that the lens surface has to be extremely near to the sensor, so any dry chamber or else could hinder this.
    Answer by: Baader Web Team (Admin) on Feb 20, 2018 9:45:00 AM
  216. Rated: -7
    2/6/2018 2:43 AM Baader 2" ClickLock eyepiece clamps
    I just purchased your Baader Clicklock SCL #2956233 for my Celestron C11. It screws on smoothly and tightens up very well to the C11 rear cell. Too well. It is very hard to remove once you snug it up. Is there a washer recommended to go between the Clicklock and the rear cell to make it easier to remove? Sometimes I need to reinstall the original visual back so I have SCT threads for my flip mirror.

    Answer rated: -7
    We do not have a washer, although one made of plastic would surely help - similar to our T-2 spacer-rings, which of course are much too small for this use-case. Most people leave the Clicklock-clamp always on the telescope.

    We do not have ready-made wahers, but to released stuck parts, we like to use sturdy rubber gloves which give you a better grip. Maybe they are also helpful for you.
    Answer by: Baader Web Team (Admin) on Feb 7, 2018 11:32:00 AM
  217. Rated: 13
    1/31/2018 10:21 PM 2" BDS-NT Baader Diamond Steeltrack® Focuser
    Is there a unit suitable for a Celestron CPC 9.25"? the one in description says newtonian. Thanks

    Answer rated: -11
    The CPC 9.25" is a Schmidt-Cassegrain telescope. So you will need the BDS-SC Steeltrack:
    https://www.baader-planetarium.com/en/2%22-bds-sc-baader-diamond-steeltrack.html
    Answer by: Tobias Baader (Admin) on Feb 1, 2018 8:39:00 AM
  218. Rated: -6
    1/31/2018 8:19 AM U-Venus-Filter (350nm)
    Is it possible/adviceable to stack two of those filters to achieve even more suppression of VIS/IR-leakage? I.e. for applications different than astronomy? Will there be multiple reflexions or similar effects?

    Answer rated: -7
    I'm sorry that we have published the transmission curve of the filter only in this German PDF so far: https://www.baader-planetarium.com/de/downloads/dl/file/id/9/product/2952/informationen_zum_baader_u_filter.pdf

    As you can see, there is almost no transmission in VIS and ca. 75% in UV. If you stack two filters, your main problem wouldn't be reflections, but the lack of light (especially as most cameras aren't optimised for UV sensitivity). Leakage in VIS should be no problem for all typical exposure times. But the filter comes in a standard filter housing and can be combined with other filters.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 3:09:00 PM
  219. Rated: -17
    1/30/2018 12:34 PM Baader UFC (Universal Filter Changer)
    I have a question about the narrowband filters in 2" cell mounted and the blank 50.4mm filters. I would like to consider the universal filter changer but I read that only low profile filter cells are suitable for mounting in the 2" slider code 2459112. Since I'm not sure if my Ha-OIII-SII Baader set I bought 3 years ago in mounted 2" format has a thin enough cell I would like to know if it could be possible to unmount the 2" filters from their mounting rings and put the blank filters in the slider for unmounted 50.4mm filters code 2459113 of the universal filter changer. (i.e. are actually the mere glasses of 2" filters of 50.4mm diameter?)
    Awaiting for a your kind reply I send my
    Best Wishes
    Emanuele Cavaliere

    Answer rated: -13
    If you bought a Baader Filter set from us 3 years ago, they are definitely in the latest "Low-Profile" filter cell. To be sure you can measure them - if they are 6mm thick they are LPFC, if its 8mm, they are older and wont fit the UFC 2" filter slider.
    It is not possible to unmount the 2" filters from their cell and mount in the UFC 50.4mm filter slider - the glass in mounted 2" filters is only 46mm in diameter - otherwise they wouldn't fit in a 2" cell.
    Answer by: Baader Web Team (Admin) on Jan 30, 2018 12:39:00 PM
  220. Rated: 2
    1/29/2018 12:24 AM Baader 36mm Hyperion Aspheric 2" Eyepiece
    Does the Hyperion 36mm match with a Giant-Binocular (Vixen BT-126SS-A) ? does it reach focus ? many thanks in advance !

    Answer rated: 2
    The field stop of the eyepiece is in the wide part of the housing, so it is quite far away from the eyepiece holder when used with the 1.25"-adaptor. I doubt that it will work with a standard binocular, as most of these have an image plane which is quite close to the housing. We have a drawing of the position of the field stop in the download section of each eyepiece, in a PDF with the technical data.

    I'd recommend eyepieces which work with spotting scopes, as these are very focus-friendly. 32mm-eyepieces like the Classic Plössl #2954132 give you the largest field of view which is possible with 1.25"; even our 35mm Eudiascopic can achieve a larger field of view only because of the changed position of the field stop, but they probably will not work with a binocular.

    But we do not have the Vixen binocular here, so I don't know exactly which eyepieces will work with it. It's probably the best if you give the PDF with the technical data at https://www.baader-planetarium.com/de/downloads/dl/file/id/123/product/1217/hyperion_aspheric_eyepieces_technical_data.pdf to Vixen and ask them, if it should work.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 2:27:00 PM
  221. Rated: 0
    1/28/2018 11:41 PM 2" MPCC V-1 Mark III Newton Coma Correktor - SET: Visual and Photographic Version
    What will be, if possible, best/minimal set to use the Baader MPCC MK III AND Baader VariLock 29 T2 Extension Tube 20-29mm with Graduated Length Scale with 2" eyepieces?
    I've read the write up for use of MPCC MK III set with 1.25" eyepices, but 2" EPs did not seem to be addressed. Is it possible to use with 2" wide view EPs with this initial setup?:
    - 8-24mm Baader Hyperion Zoom Mark IV EP 68-50° 19.4oz
    - 30mm Explore Scientific 82° 36oz EP 2 inch
    - Canon DSLR 70D crop sensor, future full frame perhaps
    - Once I have more experience using the zoom, an trying fixed length EPs out at star parties, I expect to get more ultra wide angles fixed FL EPs, both 2" and 1.25"

    I wonder if the Orion 52026 2-Inch Precision Centering Extension Adapter might attach to the Baader MPCC MK III AND Baader VariLock 29 T2 Extension Tube 20-29mm with Graduated Length Scale and allow use of 2" EPs, perhaps with some added spacing.

    Will already have a 2" to 1.25" eyepiece reducer, since comes with the scopes to be used with:
    - Orion 10" F/3.9 FL1000mm Newt Astrograph, 2" long focuser, visual > astrophotography
    - Celestron 9.25" FL2350mm EdgeHD SCT 2" focuser, AP > visual

    Thank you kindly for your help.
    cheers
    amg

    Answer rated: 0
    Please take a look at the manual at https://www.baader-planetarium.com/en/downloads/dl/file/id/483/product/3782/mpcc_mark_iii_instruction_manual.pdf where we describe the adaptation of some 2" eyepieces, e.g. with the 36mm or 31mm/72° Hyperion Aspheric. You need to know the position of the field stop. If you are lucky, you can simply screw the MPCC and the VariLock into the 2" eyepiece. Please check the information of the manufacturer of your eyepieces for the position of the field stop. If the field stop is too deep inside of the eyepiece, it will not work; if it is close enough to the telescope, you've got good cchances.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 9:57:00 AM
  222. Rated: -2
    1/27/2018 11:43 PM Baader 2" NX4 (C90) / ETX Expanding Ring
    Does this adapter fit Skywatcher BK MAK90 and BK MAK102?

    Answer rated: -4
    Unfortunately, we do not have Sky-Watcher telescopes here and do not know the exact thread-dimensions of these telescopes (or if they have changed over time). Our adapter has got a female M35-thread and a female M28.5-thread.
    If your telescope's thread has got a diameter of ca. 35mm, chances are good.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 2:57:00 PM
  223. Rated: -14
    1/24/2018 8:41 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    what is the ideal chip to eyepiece distance when using the eyepiece fore eyepiece projection? How large would the well corrected field be?

    Answer rated: -11
    For a DSLR with T-2-adapter (and the sensor 55mm away from the front end of the T-ring), we recommend an additional extension of
    - 40mm for full frame DSLR
    - 30 mm for APS-C
    - ca. 15mm for MFT

    These values are from experience; longer distances will give you a higher magnification and a darker imager; shorter distances will show distortions in the edge. But we do not have a formula for this, it depends a bit on the eyepiece. But usually, these distances will provide good pictures.

    All possible adaptations are also listed in this PDF:
    https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1086/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 9:34:00 AM
  224. Rated: -5
    1/24/2018 3:31 PM Baader VariLock 46, lockable T-2 ExtensionTube 29-46mm with spanner tool (T-2 part #25V)
    Good afternoon. I've a Ziel Newton 150/750 mm + Canon EOS 1100D + Protective T ring. The focuser is near the end with this setup. When I add also the coma corrector (MPCC), I can't reach focus because it's too inside. Could this product help me? I have also to buy other parts?

    Answer rated: -9
    Any T-2-extension between the MPCC and the camera will not work, because it would harm the optical quality of the image.

    If it is only some millimeters, you may try to move the main mirror with the setting screws which are made for collimation. Unfortunately, there isn't much more to bring the MPCC closer to the mirror (if you don't want to replace the complete focuser).

    If you need to get farther away from the telescope, you can add the Finetuning Rings #2958228 or #2958214 to the front of the MPCC.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 2:11:00 PM
  225. Rated: -19
    1/24/2018 3:18 PM Baader Ultra-Narrowband H-alpha CCD-Filter (3,5nm)
    Do you have any plans to make a 1.25" of this filter?
    Thank you,
    Elias Galanis.

    Answer rated: -11
    We are working on a 1.25" version, but we can't give you a delivery date yet - we don't know when it will be ready.
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 3:25:00 PM
  226. Rated: 10
    1/21/2018 6:58 PM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    On my Newtonian: If I'm using a MPCC w/this zoom and alternating between visual and T2 w/Nikon APS-C, is there some sort of extension I could use (clicklock preferred), so that I don't have to add/remove the focuser ring extension each time? To make matters even more fun, this will be used on a Bresser Hexafoc... Is this doable?

    Answer rated: -42
    Unfortunately, I don't see a solution for this - the camera has to be adapted directly onto the T-2-thread of the MPCC, so this thread must remain accessible. Even if you attach a T-2-Clicklock to the MPCC, you'd have to unscrew the Clicklock to attach the camera.

    So, you can't get rid of the T-2-thread, there is no space for any quickchanger, once the camera is attached.

    The only solution I can think of at the moment for more comfort would be an additional MPCC which is attached permanently to the camera adapter...
    Answer by: Baader Web Team (Admin) on Jan 31, 2018 9:45:00 AM
  227. Rated: 1
    1/20/2018 7:12 PM Baader UFC T-2 (m) Camera-Adapter (optical height: 2 mm)
    I would like to connect to a ZWO ASI071 camera which has a M42*0.75 connection. I believe a T2 thread is M42*1.0. so I am guessing that I cannot use the Baader UFC T-2 with my camera. I do not see any M42 camera connectors listed. What are my options?

    Answer rated: 0
    The definition of the T-2 thread is in fact M42 x 0,75. The tread M42 x 1 has gone almost "extinct" and is not used anymore - at least by our adapters.
    The UFC T-2 adapter should perfectly fit your camera.
    Answer by: Baader Web Team (Admin) on Jan 30, 2018 12:54:00 PM
  228. Rated: 2
    1/19/2018 10:58 PM Baader UFC 2" FLI Camera-Adapter (optical height: 10 mm)
    Is this the correct adapter to use to attach the FLI ML 16200 camera with a 65mm shutter to the UFC base?

    Answer rated: -4
    Yes indeed. This is the right adapter that allows the usage of the UFC base with the FLI-ML and PL model cameras.
    Answer by: Baader Web Team (Admin) on Jan 23, 2018 9:10:00 AM
  229. Rated: 4
    1/7/2018 12:49 AM Mark V Großfeld (Giant)-Binocular
    What is the total light transmission of this binoviewer?

    Answer rated: -16
    Please excuse, there is no answer to this question. What do you mean by "total light transmission"? The incoming light is split into two channels - evidently the light in both channels appears to be notably dimmer when you close one eye at a time and try to judge the brightness in each channel separately. What does not come into play during such kind of "fake-evaluation" is "the power of the human brain".
    It happens "in the brain" that both light trains become reunified. And what actually happens there is that the image all of a sudden does NOT look dimmer but that fine detail and most subtle color differences within planetary surfaces become recognizable much easier and that observation happens effortlessly without fatigue - even when observing over a long time. Regardless of light throughput - the real virtue of a binocular viewer does lie in the optical quality of the glass and utmost care in optical surface polish, in perfect angle orthogonality of each prism, an immaculate beam splitter quality, highest degree of optical adjustment of all optical elements at any interpupillary distance - and only lastly: utmost coating quality. These are the most necessary criteria (in this order) for supporting an undeteriorated viewing experience with both eyes - even at highest magnification work. So - whatever anyone else is claiming - the Mark V has the best light throughput and the highest quality prism surfaces and adjustment - and and and - of any commercial astro-binocular viewer in the market.
    Answer by: Baader Web Team (Admin) on Jan 11, 2018 8:27:00 AM
  230. Rated: 3
    1/3/2018 12:57 PM Baader Tripod Adapter Flange for NexStar SE / EVO
    Will this adapter also work with Celestron CPC mount for Baader T-pod? I believe drilling is same as evo/se. Which version T-pod would work best?

    Thanks to you

    Answer rated: -1
    Yes, this flange filts on T-Pod and works with CPC mount.
    We recommend the Baader T-Pod 130
    Answer by: Baader Web Team (Admin) on Jan 4, 2018 10:46:00 AM
  231. Rated: 7
    12/19/2017 5:04 AM Baader SC / HD Ultra Short T-Adaptor, 7mm optical length
    I'm trying to connect a Mallincam DS2.3+ to a Hyperion Mark III Zoom 8-24mm. The DS2.3+ has what seems like a M25f thread. What adapter rings are required?

    Answer rated: -15
    The Malincam comes with a C-Mount thread so you´ll need this two adapters because the EP has M43 thread:
    http://www.baader-planetarium.com/en/baader-c-mount-t-2-with-integrated-1%C2%BC%22-filterholder.html
    http://www.baader-planetarium.com/en/baader-hyperion-t-adapter-m43i--t-2a-(m42x0.75).html
    A lot more possibilities for adaptions you can see here (especially the last page for the video modules):
    http://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/2848/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf

    Answer by: Baader Web Team (Admin) on Dec 19, 2017 10:18:00 AM
  232. Rated: 19
    12/17/2017 9:51 AM Baader Multi-Purpose Vario Finder 10x60 (single or with MQR-IV finder holder)
    What size threads are the two screws that attach the EQDovetail adapter to the finder?

    Answer rated: -3
    It is M5 thread - we´re using screws length over all 13mm with 3mm for cylinder head.
    Answer by: Baader Web Team (Admin) on Dec 19, 2017 8:36:00 AM
  233. Rated: 5
    12/11/2017 2:58 PM Baader H-alpha 7nm CCD Narrowband-Filter
    Can a H-alpha 7nm CCD Narrowband-Filter be used for viewing in conjunction with the Baader Solar Filter?

    Answer rated: -12
    WARNING - using this filter on the sun visually will permanently damage your eye! The CCD narrowband Halpha filters are way to broad for making prominences or solar surface detail in Halpha visible and image will be much too bright for visual use. Halpha filters for solar observations like "SolarSpectrum" filters have 0,7nm. If you combine the CCD narrowband filter with our Astrosolar film you see nothing. Image will be completely black.
    Answer by: Baader Web Team (Admin) on Dec 11, 2017 3:26:00 PM
  234. Rated: 9
    12/11/2017 2:23 AM Baader UHC-S / L-Booster-Filter
    Is this filter parfocal with the high speed narrowband set?

    Answer rated: -2
    Yes. The Baader UHC-S / L-Booster is parfocal with the high speed narrowband set.
    Answer by: Baader Web Team (Admin) on Dec 11, 2017 11:05:00 AM
  235. Rated: 3
    12/10/2017 8:12 PM Baader T-2 / 7.5 mm Extension Tube (T-2 part #25C)
    I need a lockable T-2 extension, total length about 10 mm (for use with the Geoptik CCD-Canon connector). Can the 7.5 mm T-2 extension be combined with the #33 locking ring to achieve this? If not, is there another T-2 system item(s) for this? Thanks.

    Answer rated: -7
    Unfortunately, you can't combine these two parts this way. But the male and female threads of this adapter are ca. 5mm long, so I'd recommend that you use e.g. two 1.4mm T-2 spacer rings from the set #2458102 and put one on each side of the adapter. This way, you get very close to 10mm without loosing much of the threads - so you still have a secure connection to your camera.
    Answer by: Baader Web Team (Admin) on Dec 11, 2017 9:35:00 AM
  236. Rated: 15
    12/8/2017 8:56 PM Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 and 2"
    I need an adapter that will allow me to attach my Nikon 610 to my Celestron 8se that will take a 2" light pollution filter for prime focus astrophotography. I currently have a T-Ring and T-Adapter provided by Celestron, but it will not take 2" filters

    Answer rated: -14
    We have the protective ring only for Canon cameras. According your question there is only the classic way using this nose piece:
    http://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
    To connect 2" accessories onto the OTA we have two different rings:
    http://www.baader-planetarium.com/en/2%22-deluxe-eyepiece-clamp-for-sc-telescopes-(available-with-filter-holder--extension).html
    http://www.baader-planetarium.com/en/baader-2%22-clicklock-eyepiece-clamps.html
    If you choose the ClickLock clamp please take Item No. #2956220 with SC-thread
    Answer by: Baader Web Team (Admin) on Dec 11, 2017 9:25:00 AM
  237. Rated: 1
    12/7/2017 11:51 AM 2" MPCC V-1 Mark III Newton Coma Correktor - SET: Visual and Photographic Version
    I'm a newbie in astrophotography. If I'd buy 2" MPCC V-1 Mark III Newton Coma Correktor - SET for f4 Newton, would I still need an additional T-ring in order to attach my Canon DSLR camera into the OTA?

    Answer rated: 9
    Yes, you will need an T.Ring für your Canon Camera, there are different ones available:
    1. The "normal" T-Ring:
    http://www.baader-planetarium.com/en/baader-t-ring-canon-ef-%28eos%29-to-t-2.html
    2. The "protective" T-Ring were you can insert a filter wich saves the sensor from dust:
    http://www.baader-planetarium.com/en/baader-zero-tolerance-protective-canon-dslr-t-ring-t-2m-48-and-2%22.html
    3.The ultrashort version if you do not have enough backfocus for the other ones:
    http://www.baader-planetarium.com/en/baader-t-ring-canon-eos-ultrashort-to-t-2.html
    Answer by: Baader Web Team (Admin) on Dec 7, 2017 12:21:00 PM
  238. Rated: 2
    12/4/2017 5:46 PM Baader Handle for Telescopes with two pc 3" rail clamp
    I have a Celestron C11 with losmandy dovetail. Am I correct in thinking that this clamps onto the dovetail and creates a handle for manoevering the telescope OTA onto the dovetail? Great idea!

    Answer rated: -1
    Yes, it clamps onto the 3" Losmandy dovetail.
    We would recommend adding another dovetail on the upper side of the telescope - then you can leave the clamp on the telescope when you put it on the mount, and not only use it for carrying it around.
    Answer by: Baader Web Team (Admin) on Dec 6, 2017 8:29:00 AM
  239. Rated: 3
    12/4/2017 1:22 PM AstroSolar® ECO-size Safety Film 5.0, 140x155 mm
    I’m interested in the eco size safety film and it says “safe for visual solar observation (with additional optics). What does with additional optics mean? Is there another filter that should be used with this film?

    Answer rated: 3
    With additional optics means, with a telescope, a binocular or similar. UV/IR cut filter gives additional safety even if the film blocks these dangerous wavelength very good in combination with additonal optics like telescope or binocular.
    Answer by: Baader Web Team (Admin) on Dec 4, 2017 2:19:00 PM
  240. Rated: 2
    12/4/2017 11:23 AM Baader UFC T-2 (m) Camera-Adapter (optical height: 2 mm)
    I have a c14 and wanna use Mark V binoviewer. If I use NexStar Locking Ring 2" and UFC S70/2" Telescope adapter, UFC Base, and UFC T2 camera adapter, T2 stardiagonal prism and Mark V, Is it good to use vinoviewing??
    and if use above system, diagonal can rotate??
    from korea..

    Answer rated: -3
    This should work as long as you use high quality 2" filters. The problem is that many filters are designed to be used close to eyepiece - the farther away they are from the eyepiece, the more disturbing will be all imperfections of the filter, like a non-even surface. With high-end filters, it should work even with the addidtional 11 cm light-path of a binoviewer.

    To rotate the star-diagonal, you need an additional T-2 quick-changer in front of the star diagonal. Then, you can rotate the diagonal and the binoviewer; the filter holder will stay fixed. Otherwise, you'd have to unlock/lock the Neckstar Locking Ring each time when you want to rotate the whole setup.
    Answer by: Baader Web Team (Admin) on Dec 4, 2017 11:30:00 AM
  241. Rated: 21
    12/4/2017 7:27 AM Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece (1¼" / 2")
    I'd like to use the mpcc mk3 with this eyepiece. Where is the field stop located?

    Answer rated: -4
    Please see following link: http://www.baader-planetarium.com/en/downloads/dl/file/id/357/product/3117/hyperion_universal_zoom_mark_iv_specifications_drawing_and_technical_data.pdf
    Please mention the reference surface which is the determining factor.
    Answer by: Baader Web Team (Admin) on Dec 4, 2017 8:01:00 AM
  242. Rated: 12
    12/3/2017 6:02 AM Baader 2" ClickLock eyepiece clamps
    Which 2" Baader Clicklock will suit my Orion ED80 CF?

    Answer rated: -1
    We don´t sell Orion products so we don´t know how your present clamp is mounted. You can unmount your clamp to find out what size is
    given on your focuser or ask a dealer who sell this type.
    Answer by: Baader Web Team (Admin) on Dec 4, 2017 9:05:00 AM
  243. Rated: 4
    11/30/2017 2:43 PM Baader Ultra-Narrowband H-alpha 3,5nm Filter
    Are you developing a 36mm unmounted version of this filter?

    Answer rated: 0
    Currently there is no production of 36mm running but this may happen in future. Unfortunately we cannot predict when.
    Answer by: Baader Web Team (Admin) on Nov 30, 2017 3:29:00 PM
  244. Rated: 0
    11/30/2017 1:56 PM Baader 36mm Hyperion Aspheric 2" Eyepiece
    I can't get a focus @ infinity (planet, stars ....) with this specific eyepiece. I use this 36mm eye piece on an Celestron Spotting Scope Regal M2 100ED 1.25" tube. Is there a work around?

    Answer rated: 0
    Unfortunately, there is no chance with the Hyperion 36mm and a spotting scope - the 1,25"-adapter is rather long to avoid too much obstruction, but this also means that you can't reach focus with a refractor spotting scope. You need a 1,25"-eyepiece with a matching position of the field stop like the 32mm Classic Plössl (this focal length also gives you the largest possible field of view with a 1,25" eyepiece holder).
    Answer by: Baader Web Team (Admin) on Nov 30, 2017 2:37:00 PM
  245. Rated: 12
    11/22/2017 3:00 PM SET: Hyperion Universal Zoom Mark IV + Hyperion Barlow 2,25x (8-24mm / 3,6-10,7mm)
    Why is the Barlow not compatible with spotting scopes

    Answer rated: -7
    Spotting scopes do not work with all eyepieces, because they don't offer the same back-focus like an astronomical telescope. We had to shorten the housing of the Zoom eyepiece to get into focus with all spotting scopes. You really have to fight for every millimeter.

    The problem is that the front lens of the scope basically creates an image in a given distance, which is then magnified by the eyepiece. So, you need to get the eyepiece close enough to the front lens. In a spottin scope, the erect-image prism is mounted fix inside of the tube, and you can't get close enough. In a telescope, you can move both prism and eyepiece closer to the front lens.

    While a Barlow lense moves the image further to the outside, it has to be even closer to the front lens than an eyepiece - with a refracting spotting scope, you'd have to remove parts of the scope's housing to get into focus. The prism and the internal focusing mechanism are in the way...

    So, although you can attach the Barlow mechanically to a spotting scope, you wouldn't be able to reach focus and get a sharp image.

    Only if you use a telescope as spotting scope like our C5 Schmidt-Cassegrain spotting scope, you'd be able to use the Barlow - but this only works with a very small number of spotting scopes.
    Answer by: Baader Web Team (Admin) on Nov 22, 2017 3:01:00 PM
  246. Rated: 10
    11/20/2017 3:10 PM Morpheus® 76° eyepiece set (complete)
    I am looking to attach my Nikon D810A dslr to a Morpheus eyepiece, however I am having difficulty understanding which extension tube I would need (along with the M43 / T-2 Adapter).

    Hopefully this will mean I will not require a big shift in focus every time I attach my dslr.

    Many thanks
    Kevin

    Answer rated: -8
    It is easy: For a full-frame-camera, you need ca. 40mm of additional distance, otherwise there will be distortions at the edges.
    For a smaller APS-C-camera, ca. 30mm are sufficient (e.g. two 15mm-extensions, or a quick-changer and a 15mm-extension)
    For a Micro-Four-Thirds-camera, you need even less distance to get a good image.
    We have described several adaptations in the PDF at http://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/2846/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf
    Answer by: Baader Web Team (Admin) on Nov 20, 2017 3:47:00 PM
  247. Rated: 0
    11/18/2017 9:59 PM Baader 17mm Hyperion 68° Modular Eyepiece
    Is this compatible with the celestron Ultima 80?
    Many thanks

    Answer rated: -2
    Unfortunately no - only the Hyperion Zoom eyepiece is compatible with the Celestron Ultima spotting scopes. The Hyperion eyepieces with fixed focal length do not have the thread which is required by the Celestron Ultimas.
    Answer by: Baader Web Team (Admin) on Nov 20, 2017 11:25:00 AM
  248. Rated: 0
    11/18/2017 7:09 PM 2" BDS-RT Baader Diamond Steeltrack Focuser
    I am the owner of a Vizen ED103SWT refractor.
    I would like to change the focuser with your steeltrack RT, is it possible? Wich kind of adapter is useful for?
    Regards. Giorgio

    Answer rated: -4
    There are so many different telescopes on the market and we don´t sell Vixen so please contact a Vixen dealer to be sure what thread is on your
    telescop. As you can see under "related products" we have a M88x1 and M93x1 adapter availabe.
    Answer by: Baader Web Team (Admin) on Nov 20, 2017 8:31:00 AM
  249. Rated: 15
    11/15/2017 8:25 AM DADOS Slit – Spectrograph
    My spectra show dark stripes (see mark in picture) - where do they come from?

    Answer rated: -18
    The answer of this question can be found on our blog:
    http://www.baader-planetarium.com/en/blog/my-spectra-show-dark-stripes-where-do-they-come-from/
    Answer by: Baader Web Team (Admin) on Nov 15, 2017 8:29:00 AM
  250. Rated: 2
    11/12/2017 12:38 PM Baader 2" ClickLock eyepiece clamps
    I intend to place your ClickLock eyepiece holder on my personal construction telescope.
    The M64 (Takahashi) or the M60 (vixen) model could suite . But I do not have their thread pitch.
    What is the thread pitch of the M64 ClickLock (Takahashi ref # 2956264) and the M60 ClickLock (Vixen, ref # 2956260) ?

    Thank you.

    Answer rated: -5
    Both ClickLocks M60 and M64 are made with a 0,75er pitch and fits with Takahashi and Vixen.
    Answer by: Baader Web Team (Admin) on Nov 13, 2017 12:51:00 PM
  251. Rated: 3
    11/10/2017 8:34 PM Baader V rail / dovetail bar 470mm for SC
    Dear Baader, I have a s\c Meade 10' LX200, can I use this bar for my OTA?

    Answer rated: 1
    The thread holes of the Meade OTAs are different to those from Celestron. I´m sorry but unfortunately this bar will not fit onto your telescope.
    Answer by: Baader Web Team (Admin) on Nov 13, 2017 9:07:00 AM
  252. Rated: 6
    11/9/2017 2:22 PM Baader H-alpha 35nm CCD Filter
    Does the filter block IR radiation right down to 2400nm. Solar radiation extends that far. KG3 heat absorbing glasses protect down to 2400nm. On your UV IR blocking filter you say it is better than KG3 so that implies that goes down to 2400nm.

    Answer rated: 6
    Our H-alpha filters are developed with the usage of CCD imaging in mind. The most used camera chips are sensitive to light with a wavelength up to 1150 nm. Therefore blocking the light on such stretched region, would have resulted in an unnecessary cost increase.
    We do not use KG- glass because it does not allow 100% transmitance on the visible spectrum. In this respect, our filters acheive a better result than KG glass.
    Answer by: Baader Web Team (Admin) on Nov 10, 2017 8:32:00 AM
  253. Rated: 2
    11/3/2017 4:14 AM Baader T-2 Stardiagonal (Zeiss) Prism with BBHS ® coating (T-2 part #01B)
    Does it make sense to use a T2-2" clicklock on this for a 2" eyepiece? Or it's better to just use 1.25" clickclock and eyepiece given the connection interface size is only T2.

    Answer rated: -2
    The aperture of the housing/prism is 34mm. You can use 2" eyepieces up to 34mm free aperture on
    the telescope side, these will be fully illuminated. If you have 2" eyepieces with a wider aperture than 34mm
    you will see that the field is vignetted.
    Answer by: Baader Web Team (Admin) on Nov 3, 2017 10:17:00 AM
  254. Rated: -4
    10/30/2017 4:35 AM Baader L-RGB CCD-Filterset
    What type of glass is used in Baader Filters?
    BK7 or float plate?