questionssss
Most Recent Product Questions
-
Rated: 182
What's the actual size of your 2" filters in "mm" with and without frame/ring? What step down adapter is suggested from a 52 mm to "-- mm"?
Answer rated: 225Our largest cell mounted filters measure 2" (50.8mm) in mechanical diameter (having a metric thread of M48). The optical clear aperture is 46 mm. In order to ease the adaptation of our 2" filters onto most camera lenses, we do produce a 2" filter-holder, to convert from the ASTRO-2" Standard (M48) into a more common photo-standard of SP54 mm ("SP"means this is not a metric thread).
For adapting any cell mounted Baader 2 inch Filter onto a camera lens with 52mm front filter thread you will need:
#2408166 Baader DSLR 2" Filter-Holder M48 / SP54: https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html
#2958052 Baader Lens-Adapter-Ring SP54 / M52: https://www.baader-planetarium.com/en/baader-hyperion-dt-ring-sp54m52-for-dtadapter-iiandiii-and-hyperion-eyepieces.html
Based on the SP54 thread, we offer many more adapters for various camera threads, our so-called Hyperion DT-rings. https://www.baader-planetarium.com/en/catalogsearch/result/?q=sp54Answer by: Baader Web Team (Admin) on Oct 11, 2016 5:08:00 PMRated: 165
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: -2We 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 AMRated: 81
I've got filter set h-alpha,h-beta,sII,oIII for full frame ccd, when will arrive the filter size 1.25" for h-alpha 3.5nm?
Answer rated: -25The H-alpha 3.5nm filter in 1.25" size will become available in approx. four months. Thanks for your patienceAnswer by: Baader Web Team (Admin) on May 2, 2017 8:24:00 AMRated: 68
Do all Baader narrowband filter both UV and IR as well? I am thinking of using them with a Full Spectrum DSLR. Thanks.
Answer rated: -28All Baader Planetarium narrowbandfilters are blocking UV and IR, they are made for use with fully unblocked monochrome cameras.Answer by: Baader Web Team (Admin) on Nov 2, 2016 3:43:00 PMRated: 60
Is the erecting prism, part no 2456130, compatible with the Vario Finder (Baader T-2 / 90° Baader Roof-Prism with BBHS ® coating (T-2 part #02), and can I use the supplied eyepiece with this combination?
Answer rated: 41Yes, the T-2 90° BBHS prism is perfectly compatible with the Vario-Finder. The supplied eyepiece of the Vario Finder can be screwed directly into the housing of the erecting star diagonal.Answer by: Baader Web Team (Admin) on Dec 2, 2016 12:03:00 PMRated: 60
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: -42The 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 AMRated: 58
Wrinkles, folds, creases - is my Baader AstroSolar Viewer safe?
Answer rated: 4Your AstroSolar Viewer is perfectly safe. Each single viewer has been safety-tested and is tucked into it's own protective poly-bag. After each time you used it put it back into it's poly bag and it will serve you for years to come (the next total eclipse in the US will commence on April 8th 2024).
Like published many times for AstroSolar Film, the film is mounted loosely in it's paper frame to retain the ultra high quality which AstroSolar is known for. When looking at the film you might have the impression it would show wrinkles - and this is perfectly normal and that's how it ought to be. All our product images do show how this will look like. Wrinkles in this case are a sign that the film is mounted correctly. What we do not let pass though are real folds and creases in the metal film. Even these will not be dangerous in the least - but they could impair the high optical quality of the solar image.
Do not let the viewer fall into dirt, do not let it collect dust over some weeks, do not put it flat on a table while rubbing it back and forth - that is - do not violently scratch off the metal coating visible at the front side. AstroSolar film is metallized on both sides. Even some scratches on the front side will not be dangerous for your eyes! This material has a 25 years history and we stand behind it. In addition, the special (non-soot) black film that complements the metal film will work as an added safety layer and definitely the combination of materials will keep your eyes out of harm.
Even so we do insist that each viewer must be tested by you as well before each use, to check if any changes have appeared over time due to wrong handling or improper storage. If your viewer is torn from age or use, if it shows bright pinpoints during a short glimpse towards the sun, then discharge it and get a new one.
Answer by: Baader Web Team (Admin) on Aug 15, 2017 9:49:00 AMRated: 58
Why is the Barlow not compatible with spotting scopes
Answer rated: 2Spotting 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 PMRated: 55
Please tell me how can I connect the 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons) and the camera QHY 163m. Is there any ready-made solutions. If not, how to calculate the adapter? Thank you.
Answer rated: 42it is quite hard to find data about the back-focus of the QHY 163M camera as their manual is not online, but it seems to be 18mm. The MPCC is designed for a distance of 55mm +/-1mm between its T-2-thread and the sensor, so you need a spacer with a length of 37mm.
You can achieve this easily with the
Baader VariLock 46, lockable T-2 ExtensionTube 29-46mm with spanner tool (T-2 part #25V) #2956946 ( http://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 )
Please check the camera manual if the back-focus measured from the T-2-thread is 18mm. If it is different, you can use either the Varilock 46 (for 29-46mm) or the VariLock 29 (for 20-29mm).Answer by: Baader Web Team (Admin) on Sep 18, 2017 8:35:00 AMRated: 52
What are the threads and pitch of your 1.25" and 2" filters?
Answer rated: 92Our 1.25" filters have a M28.5 male (and M28.5 front female) thread / our 2" filters have a M48 male (and M48 front female) thread
Both thread sizes come with our proprietary pitch - which is not the same for the female and male threads.
This is our own proprietary "emergency solution" for uniting a world were manufacturers all over the world copy from each other - to the point that there are almost a dozen different pitches in use for male and female threads. Traditionally US-companies used to do a UNF-based pitch and the rest of the world went for metric threads - but these do vary from 0.5 to 0.75.
For this reason it does not make sense to publish our non standard pitch because our pitch is made to cope with all existing metric and US-pitch standards - and as said - our solution has evolved from sheer necessity. It is a mixture of a queer pitch and under-/over-dimensioning . We will not want to declare this as a standard and get bashed up for it. It works for us and is a result of 20 years adaptation to fit our filters onto all crazy threads we have seen. And inspite of this - every now and then there comes another "dragonboat-eyepiece" were even our filters may not fit...Answer by: Baader Web Team (Admin) on Sep 22, 2017 1:43:00 PMRated: 44
Is this sutible for expensive camera lenses etc? Thanks
Answer rated: -27Optical wonder is used to clean world´s most expensive astronomical mirror surfaces. It certainly is good for cleaning hard coatings of camera lenses.
Greatest care has to be taken to not "drown" the front lens in too much cleaning fluid and have the fluid flood all the lens from above. Only put Optical wonder onto the cleaning cloth when preparing the cleaning operation.
Please also read the instructions found under the tab "Downloads": http://www.baader-planetarium.com/en/downloads/dl/file/id/110/product/1661/cleaning_and_maintenance_of_optics_a_short_instruction_guide.pdfAnswer by: Baader Web Team (Admin) on Mar 27, 2017 3:42:00 PMRated: 44
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: 3To 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 AMRated: 43
I have a 2” clicklock star diagonal which has had the 2” telescope side nosepiece damaged. Is it possible to purchase a new 2” nosepiece separately?
John.
Answer rated: 4Yes, of course. They are available individually with safety kerfs (included with all Baader 2" prisms/mirrors as standard since about one year):
https://www.baader-planetarium.com/en/baader-2%22-safety-kerf-nosepiece-with-2%22-filter-thread.html
or also as traditional nosepiece with undercut (included with previous versions):
https://www.baader-planetarium.com/en/baader-2%22-nosepiece-with-2%22-filter-thread.htmlAnswer by: Baader Web Team (Admin) on Nov 20, 2020 11:17:00 AMRated: 42
Is this eyepiece parafocal as you move between click stops?
Answer rated: 36We 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 AMRated: 42
I have recently bought this product to help me get a very short connection for my T2 Zeiss prism to my C9.25 SCT rear port. I find that the two "rings" rotate freely with each other - is it normal? Or is this adapter supposed to be a fixed single piece with no rotating components? I am trying to figure out the best way to tighten this to the rest of my system, so that heavy accessories espcially like binoviewers won't rotate freely by accident!
Answer rated: -25This is indeed normal and intended behaviour. The two rings rotate freely exactly for the purpose of being able to align your accessories as preferred. However: when you completely tighten it onto your C9.25 SCT rear port, it will be pressure-locked and wont rotate anymore.Answer by: Baader Web Team (Admin) on Feb 8, 2017 3:42:00 PMRated: 40
I note that you do not provide either the Neodymium Filter nor the IR-Pass Filter in a version that is 'Square 50 x 50mm unmounted', is this correct?
In relation to both Filters' Wavelength Spectrum Response what alternative Filter(s) do you have that has the nearest spectrum response in the 50 x 50mm unmounted version? Preferably 3mm thickness.
The reason for this enquiry is to have a useful 'Luminesence' filter for Lunar and Planetary Astrophotography when the rest of the filters are for Deep Sky Imaging (Baader CCD Complete Filter Set II 50 x 50mm #2459544).
Answer rated: 26To make it short, unfortunately we currently don't offer either in 50x50 with 3mm thickness because it will dim image compared to our 2mm substate thickness filters.
Answer in detail: We are sorry, we never felt the Neodymium-Filter to be of intense enough value for CCD-imaging (but very nice for planetary lucky imaging!), hence it is being handled as perfect visual/videography filter here and only av. cell-mounted in 1 1/4" and 2" (2" being a size which already does serve well for DSLR-imaging and were we have all adapters available to put this filter in front of any DSLR-camera lens - or to use our UFC- filter changer for mounting it in front of any CCD-camera.
The neodymium substrate will become very expensive in 50x50 x3 mm size and we already must go through a lot of glass to cancel out substrates with striae and other pouring defects. If you find someone offering this substrate in that size and thickness, you should very carefully check it for optical defects as most people do not do this careful glass selection, nor do they polish each filter substrate on an auto-deck-polisher, nor do they apply a truly high efficient BBAR-coating on both sides. Actually most are just usurping the name of the substrate while supplying very mediocre optical quality.
If you have evidence of people using our smaller neodymium-filters successfully as "L-filter" substitute in a regular CCD-camera filter wheel, then please let us see the links. If it is reasonable we may enter into such a project - but the resulting price may be double of a cell-mounted 2" filter. Also keep in mind that the 1 mm added thickness will definitely cause some loss in transmission!
Regarding the IR-pass-filter in 2 mm thickness: These are perfect for lucky imaging/videography. Hence 95% of these filters are being sold in the 1 1/4" cell-mounted version in 2 mm thickness. Again - offering this in 3 mm thickness will reduce transmission and not offer enough benefit for regular CCD-imaging (just our 2 ct´s).
Answer by: Baader Web Team (Admin) on Mar 6, 2017 9:35:00 AMRated: 40
Will this Barlow fit the space between the Hyperion Zoom and the 2" ClickLock Mirror Diagonal when the zoom lens has been directly connected to the diagonal with the 2i to 2a change ring?
Answer rated: 12No, this would be too long to fit.Answer by: Baader Web Team (Admin) on Jul 28, 2020 11:21:00 AMRated: 40
In the description of the Baader 2" ClickLock Diagonal Mirror it shows the 2" nosepiece screws into a S58 dovetail.
I can't seem to find the S58 dovetail replacement on your website. is there an alternative or upgraded version of this?
Answer rated: 3I'm not sure which replacement you are talking about. The 2"-nose piece is Baader 2" Safety Kerf nosepiece with 2" filter thread # 2408156
Or are you talking about Baader M55a/M68a Adapter for all 2" Baader mirrors and prisms # 2956110?Answer by: Baader Web Team (Admin) on Oct 4, 2022 12:08:00 PMRated: 39
Hello. I'd like to use this corrector with William Optics binocular. I need some additional T2 connector between the corrector and bino. Is there a way to make it work?
Greetings
Answer rated: -6We are sorry but we do not have adapters for William Optics bino-viewers and dont know their design good enough. If it has got a 2" filter thread, maybe you can use Baader Expanding Ring T-2f / M48m (T-2 part #29) # 2458110 - but this will bring the glasspath corrector much farther away from the bino than desired, thus increasing the magnification even further.Answer by: Baader Web Team (Admin) on Dec 14, 2020 9:30:00 AMRated: 38
What is the difference between ACF and BCF?
Answer rated: -13The ACF filters are for the first generation of Canon Cameras only, all newer ones (from40D on) need the BCF filters. The ACF is a full thickness glass stack, the BCF is a thin filter exchanging only one part of the original filter stack. The specs / functionalites of ACF/BCF filters are the same, only the size / thickness are different.Answer by: Martin Rietze (Admin) on Sep 5, 2016 9:31:00 AMRated: 37
Is it possible to stack GPC's without losing image quality?
For example, a 1,25x or 1,70 GPC on top of the 1,7x newtonian GPC with a Mark V binoviewer. That would give a nice flexibility.
Answer rated: -8Sorry, GPCs are not designed to be stacked. Dual stacking will create spherical aberration - unfortunately we cannot recommend it.Answer by: Baader Web Team (Admin) on Jan 19, 2017 5:04:00 PMRated: 36
Can i use this filter with my Baader Herschell Helioscope ?
Answer rated: -5Yes - but only for photography! The K-Line filter is NOT FOR VISUAL USE!Answer by: Baader Web Team (Admin) on Jun 22, 2021 9:02:00 AMRated: 35
What is the optical length for this product (Baader 2" ClickLock CL-SC-Clamp 2956220) ?
Answer rated: 15The optical height of the SC-clamp is 47mm. Please note the technical image to our 2" ClickLock System. Its the first image linked under "Application Images". More ClickLock clamps are in production.Answer by: Baader Web Team (Admin) on Oct 10, 2016 10:08:00 AMRated: 35
I ask for another information on the use of the d-erf filter, I see that many amateurs and builders mount it in small format internally near the focus point to save money, I think instead it is better to mount it externally in front of the lens to prevent the telescope warm up internally, are both solutions valid?
Answer rated: 14A Energy Rejection Filter always has to go on front of the optics to prevent the full solar energy from entering the telescope, hence the name. To place it inside the telescope right before the focus point, where the solar energy will hit the filter in a combined way at full force is in our opinion dangerously negligent. We stronly advise against such experiments! Solar Safety is not the place where one should safe money. If such a wrongfully place ERF filter breaks due to the solar force and the light enters your eyes, you might become blind or permanently damage your eyes.
Thank you for asking and for already stating that you don't think this is the best way. You're completely right!Answer by: Baader Web Team (Admin) on Aug 22, 2022 8:18:00 AMRated: 34
With a classical Cassegrain such as Orion CC 6 inch Dia 1800 mm focal f12 and focal plane fixed at 6 inch from rear mirror approx would this FFC be practical at all ?
Answer rated: 21You can find a diagram in the gallery of the product images which shows you the position of the FFC and the new focal plane in relation to the original focal point of the telescope. E.g., if you use it at 3x, the FFC moves 14,7mm inwards (that's the value of L), and you need extension tubes for 96mm (that's the value of L').
For 8x, you need ca. 27mm of inward travel.
This should help you to determine if you have enough back focus.
On the other hand, you should check the pixel size of your camera to see if you are oversampling when using the telescope at at least f/36. Today, some cameras have such small pixels that they already work fine at f/15-f/20. The perfect focal ratio depends on the camera pixels. There are several articles online about this, just google e.g. "matching your camera to your optics" for a lot of information.Answer by: Baader Web Team (Admin) on Jan 8, 2021 9:42:00 AMRated: 34
I purchased the Hyperion Zoom and the MPCC Mark III. Can you tell me how to adapt the eyepiece to the coma corrector?
I also want to use other eyepieces. How do I know the right distance between fieldstop position and the MPCC?
Answer rated: 22We found this question very important and wrote an extensive answer with application images for other customers with similar question. Please check out the following blog post: "Perfect Coma Correction with Baader-MPCC – But how to adapt eyepieces?"
http://www.baader-planetarium.com/en/blog/perfect-coma-correction-with-baader-mpcc-but-how-to-adapt-eyepieces/Answer by: Baader Web Team (Admin) on Oct 12, 2016 2:37:00 PMRated: 34
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: 5Unfortunately, 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 AMRated: 33
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: 20Yes, 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 AMRated: 33
Will this work with a Celestron C11 with the Baader 2” click lock visual back?
Answer rated: 18There are several ways of adapting the Alan Gee to a telescope described 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
You could e.g. use Baader T Adapter (BTA) for SC and MAK Telescopes (T-2 part #21) # 2408160 and Baader Expansion Ring 2"a/T-2i with 1mm optical path length (T-2 part #28) # 2958242.
But please remember two things: The compressing factor of the Alan Gee depends on the distance to camera or eyepiece, and it is designed to be used inside of the baffle of a Schmidt-Cassegrain, only then it will deliver the best results (which is mainly important for photography). If you want to use it with a 2" star diagonal, we recommnd that you use it as described in the manual between the nosepiece and the body of the star diagonal. If you want to proceed with T-2, we recommend the Universal Alan Gee II - Telecompressor (UAG II) # 2454405 which combines the Alan Gee optics with a 2" nose piece and a T-thread.Answer by: Baader Web Team (Admin) on Jan 7, 2021 9:18:00 AMRated: 33
Is this the smallest of its kind of 2 diagonals?
Answer rated: 5No - the smallest diagonal (prism) is this one https://www.baader-planetarium.com/en/accessories/optical-accessories/prism-and-mirror-star-diagonals/baader-prism-diagonal-t-290%C2%B0-32mm.html rAnswer by: Baader Web Team (Admin) on Dec 2, 2021 9:47:00 AMRated: 31
Is the housing for this diagonal CNC machined? And what features are there that ensure proper alignment of the mirror? What are the features of the mirror glass?
Answer rated: 32The mirror seat of the diagonal body is machined, to provide a defined position.
We do regard the mirror substrate of our dielectric diagonals a proprietory information. As you may have heard, a dielectric coating with as much as 50 coating layers can extend an enormous amount of stress onto the mirror substrate. Many proudly offered dielectric mirrors suffer under "power" - means the surface bends under the coating stress and over time develops a very weak spherical shape. For this reason we use a hardened variety of borosilicate glass, which can sustain the plane polished surface to remain in perfect order. Admittedly this substrate has somewhat larger index of expansion and does take longer to regain its optical shape when subjected to large temperature differences - but only when compared to our BBHS mirror-diagonals which feature a hard-silver coated glass-ceramics (Astro-Sitall) as substrate.
However - we had extensively tested this combo of coating and substrate to be a perfect match for our dielectric diagonals - especially ensuring a longlived product that does not change in optical quality over time. Please read more about the mechanical and optical properties of our BBHS-diagonals, as well as our marketing philosophy, to not participate in the usual number competition here: http://www.baader-planetarium.com/en/blog/baader-bbhs-reflective-properties/
Answer by: Baader Web Team (Admin) on Sep 14, 2016 11:09:00 AMRated: 31
Does the mirror diagonal reflect or pass through the UV/IR into the diagonal aluminum housing?
I want to use a petzval refractor for H-alpha solar observing with a dedicated solar filter. It is in general recommended not to use an UV/IR cut filter before the diagonal, since UV/IR reflections can come to focus in the petzval rear glass elements and harm the scope. If it rejects UV/IR by passing UV/IR into the diagonal housing, this is a big sales argument for the dielectric mirror when using a petzval scope.
Best regards
Thomas
Answer rated: 3Thank you. We are aware of this benefit of "not trransmitting UV and IR wavelenghts for H-alpha observation". For this reason we emphasize this fact in the description of this dielectric mirror.Answer by: Baader Web Team (Admin) on Nov 29, 2021 3:05:00 PMRated: 31
Hello,
I would like to know if it is possible to use the 2” astro-nosepiece with SC male thread (n°3 on p.20 of instruction manual) to fix my Canon EOS on the telescope directly with a supplemental EOS ring ?
Thank you for your reply
Answer rated: 6Yes, but... Of course, you could make a dedicated reducer from S52-ring dovetail to SC-thread (that is, if you use one of our Wide-T-rings), but it would be cheaper to simlpy buy a 2" / S52 Nosepiece # 2958551.
If you have a standard T-ring (with M42x0.75-thread), then the thread is smaller than the nosepiece. You could use Baader Reducing-Ring 2"i / T-2a, with 1.5mm optical length # 2958244 to attach the nosepiece to the T-ring, but this wouls be 1,5mm longer than a dedicated nosepiece Baader 2" nosepiece to T-2 / M48 (T-2 part #16) # 2408150 and not much cheaper, too.
dependng on the size of your camer sensor, it would be better to buy a Wide T-ring and a matching nosepiece to avoid vignetting, which will occur on a full-frame-camera when you are limited to T-2.Answer by: Baader Web Team (Admin) on Mar 11, 2021 12:55:00 PMRated: 30
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: 4Please 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 AMRated: 30
I have some questions regarding your Amici-prism 2" diagonal:
1. Does it really have only 30 mm clear aperture? Is it not too small for 2" eyepieces like Nagler 31 mm (42 mm fieldstop)? No vignetting?
2. What is the length of the light path in this diagonal?
3. I'm thinking about using this diagonal in a 80/400 refractor, with Teleskop-Service flattener TSFlat2 (http://www.teleskop-express.de/shop/product_info.php/info/p1010_TS-Optics-Universal-APO-Flattener-TSFLAT2-fuer-Refraktor-Teleskope.html), which has normal 2" filter thread. Can the nosepiece of the diagonal be unscrewed, and the flattener screwed to the body of the diagonal itself? (so the flattener would work as a nosepiece). In the description there is the information that "innenanschluss" is M48 thread, and this - I think - is equal to standard 2" filter thread...
Kind regards, Piotr Kierzkowski
Answer rated: 0This 2" Amici has got indeed a clear aperture of ca. 38mm, so it should work quite well with your eyepiece. Unfortunately, we do not have the data about the light path at hand.
The nosepiece on the telescope-side can be removed, the housing has got an M48-filterthread, too. Only the eyepiece clamp can't be removed.Answer by: Baader Web Team (Admin) on Nov 9, 2016 2:58:00 PMRated: 30
The Baader Vario Finder #2957460 Specification details do not indicate its' weight.
What is the weight please for the Counterweight calculation.
Answer rated: 21The Variofinder itself weighs 850g, the optional MQR IV finder bracket weighs an additional 350g.Answer by: Baader Web Team (Admin) on May 22, 2017 1:32:00 PMRated: 30
What is the minimum focal ratio that will still allow this filter to work properly?
I'm thinking here about very short focal ratio systems, such as the Hyperstar, which can operate at f/2.
Answer rated: 21The filter works with f/2 systemsAnswer by: Baader Web Team (Admin) on Feb 9, 2021 8:17:00 AMRated: 29
Dear Sir,
I use a Baader T-2 prism diagonal with a 1,25" clicklock eyepiece adapter.If I insert the Zeiss Abbe barlow lens into this clicklock will this not hit the prism inside the diagonal? I ask because the 1.25" sleve of this barlow seems much longer than the 1.25" clicklock eyepiece adapter I use??
Thank you very much!
Best Regards
Answer rated: 5It is indeed too long - the lens is about 12mm longer than the top of the T-thread.
If you want to use it with a 1.25"-prism, you could use
Baader T-2 / 15 mm Extension Tube (T-2 part #25A) # 1508154Answer by: Baader Web Team (Admin) on Sep 9, 2020 4:15:00 PMRated: 29
Tell me, please, what is the best diagonal to choose for observing objects of distant cosmos and planets:
Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp
And yet, the mass of them is indicated the same, is there any error here? The prism should be heavier? Thank you for your responses!
Answer rated: 14There was indeed an error in the specs, the mirror weighs 451g and the prisms weighs 513g. Regarding your question which to choose:
Usually prism diagonals are better suited for long focal length refractors and mirror diagonals for short focal length mirror telescopes.
This is because the total reflection with prisms is suboptimal when using short focal lengths due to nonlinear light reduction with high angle side light rays and chromatic prism effects. Also there are shifts in backfocus and it can influence the correction of high quality optics due to the glasspath (the speed of light is lower inside a dense medium like glass in comparison to air).
On the other side mirrors don't have the same maximum reflection values like a prism's lossless physical total reflection. Also a mirror is much more sensitive to transmission reduction when exposed to the air (sensitive silver layer getting weak very soon).
But with the Baader BBHS self protecting silver reflection layer on both diagonals (mirror and prism) the backsides of both principles are well compensated, this means the mirror diagonal will not loose any light due to aging anymore and the general light angle sensitivity of the prism diagonal due to reliance on total reflection alone is compensated by the additional BBHS layer below the total reflection hypotenuse area.
So the decision between diagonal mirror or prism is not as critical as it was until now.
But still a short focal length instrument favours a mirror diagonal.Answer by: Baader Web Team (Admin) on Mar 29, 2017 10:49:00 AMRated: 29
I would like to use 65mm suqare filter in fornt of camera lens. Do you have 65mm suquare holder? If not, please let me know how to fix 65mm suqare filter for several camera lens. Thank you.
Answer rated: -8We are very sorry, we do not offer filter holders for 65mm filters in front of camera lensesAnswer by: Baader Web Team (Admin) on Dec 10, 2021 9:43:00 AMRated: 29
I have a Zeiss Telementor telescope with a Zeiss M44 prism diagonal. I want to use 2" eyepieces with my diagonal. Can you supply a 2" click-lock eyepiece holder with a male M44 thread connector?
Answer rated: 10This is possible by combining our 2" / T-2 ClickLock #2956242 with our M44 / T-2 Zeiss adapter #1508005
https://www.baader-planetarium.com/en/baader-zeiss-camera-adapter-m44t-2.htmlAnswer by: Baader Web Team (Admin) on Aug 26, 2019 8:44:00 AMRated: 29
Is there an RT adapter to fit a Steeltrack focuser to a Skywatcher EQUINOX 80 please?
Thanks, Paul
Answer rated: -30We would love to see our Diamond Steeltrack on as many telescopes as possible. However we cant answer this question for certain, since we don't sell this telescope and thus don't know the thread sizes, backfocus and so on. You could send us your scope and we would inspect it and check if we have a fitting adapter - if not we could produce one.
If you don't want to send us your scope, we would need precise measurements of the thread sizes / pitch as well as measurements or specs from your telescope to evaluate the backfocus. Please send images of all measuring steps.Answer by: Baader Web Team (Admin) on May 26, 2017 1:30:00 PMRated: 29
Is any adapter available that allows this eyepiece to be used on the Opticron MM4 60ED spotting scope?
Answer rated: 22Yes, this adapter is now available! See here:
https://www.baader-planetarium.com/en/2%22a--m41-5-zero-length-reducing-piece-(no-optical-height).htmlAnswer by: Baader Web Team (Admin) on Nov 15, 2018 11:56:00 AMRated: 29
Hi I have a Canon 5D modified with the stock IR filter removed making it full spectrum imager. I need a standard 2" threaded IR cut filter to block the unwanted IR while leaving the Ha intact, I could purchase your Baader UV-IR-CUT Filter for this purpose but wonder if the Moon and sky-glow filter would serve dual duty to cut the unwanted IR while also preforming as a LPF with the additional benefit of lunar and Planetary enhancement. Lastly would the Moon and Sky Glow filter degrade deep sky imaging at dark sky locations thus making a case for the need of both filters?
Answer rated: -10The Moon and Skyglow filter can be used as UV/IR blocker, that is correct. And it also has some LPR function (which is of course not as strong as with a full Deep Sky UHC Filter). This means it will degrade the efficiency at dark sky locations not as strong as with a real UHC filter.
But - it will mean you have:
-not the maximum deep sky contrast in light polluted areas
-not the maximum efficiency in really dark areas
->therefore separate filters, a UHC and a UV/IR blocker and maybe the Moon&Skyglow for planetary work are the better solution.
So if imaging efficiency is not your main intention and a compromise is ok you can choose the Moon&Skyglow alone. Otherwise we recommend separate ones.Answer by: Baader Web Team (Admin) on Jul 6, 2017 12:26:00 PMRated: 29
How do I get the new universal zoom Mark IV 8-24mm eye piece to focus at infinity on the Celestron Regal M2 100ED?
Answer rated: 0This is described on page 5 and 7 of the manual (PDF: http://www.baader-planetarium.com/en/downloads/dl/file/id/356/product/3117/description_and_recommended_accessories_for_the_hyperion_universal_zoom_mark_iv.pdf ).
You need to replace the telescope ring B with spotting scope ring A, this will give 4 mm more back focus. Then you have to push the eyepiece into the eyepiece clamp as far as possible; you may have to give it some mure pushes because the locking collar of the spotting scope moves when you turn it.Answer by: Baader Web Team (Admin) on Aug 2, 2017 10:26:00 AMRated: 28
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: -69Unfortunately, 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 AMRated: 28
Regarding the quality of visual observation, is there any difference between this T2 Roof prism (2456130) and the 2" Astro Amici Prism (2456120)?
Answer rated: -9Both of our Astro-Amici Prisms are produced with the same specifications. There is no difference in the quality of visual observation - the only difference is the size.Answer by: Baader Web Team (Admin) on Jun 29, 2020 10:30:00 AMRated: 28
I've recently purchased a new ClickLock 2 inches clamp (part num. 2956254) to upgrade my new Skywatcher Quattro 8P's focuser.
Much to my surprise, I found that the ClickLock is unable to lock the Skywatcher original coma corrector: even if the ClickLock is completely closed, the coma corrector still slips free in the focuser tube.
The same issue appears with the SharpStar 1X coma corrector.
Were you aware of this issue?
Thiis problem could be easily solved if the ClickLock was able to reach a slighly smaller diameter at its maximum closing position.
Is there anything I can do to solve this problem, other than return the ClickLock a use the original focuser adapter? I really love the ClickLock
Answer rated: -4The Clicklock clamp is designed exactly to fit for the 2" standard and fits all eyepieces and accessories we and many customers tested. We can only conclude Its not a problem of the clamp, its a problem of accessories not manufactured accurately enough according to standards, sorry to say.Answer by: Baader Web Team (Admin) on Jul 19, 2021 10:51:00 AMRated: 28
I want to connect my existing EOS T-ring to the Baader MPCC. Does the item on the webpage come with the necessary spacers, or will I have to buy additional items?
Thanks.
Answer rated: -14If you use any standard T-2-ring, you can use the MPCC without any other adapters - the ring will give you the necessary distance of 55mm to the sensor of your DSLR. This is the standard-distance which was also used bei camera lenses with T-2-thread.
Only if you have a low-profile T-2-ring like #2408318 or if you use the M48-thread, you'll have to use additional spacer rings.Answer by: Baader Web Team (Admin) on May 8, 2017 9:41:00 AMRated: 28
I cannot get the image in the eyepiece to center. I'm using the Baader Focusing Eyepiece holder. I have moved the adjustable T2 ring to its limit, but the image when centered in the camera is at the edge of the field of the eyepiece. Ideas?
Answer rated: 8You probably need to adjust the two brass pins on which the mirror rests in its lower position. This way, you can move the image along the optical axis of the telescope (either closer to the telescope or to the camera).
To test this, take a look through the eyepiece and move the mirror slightly up - if the star moves in the desired direction (or contrary to it), then you need to adjust the brass pins. Please see page 11 in the manual (chapter 3 - Adjusting the mirror). If it moves sideways instead, things get complicated. But that's most probably the solution.Answer by: Baader Web Team (Admin) on Mar 25, 2020 10:58:00 AMRated: 28
I've very interested in this product but want to make certain I'm clear on what I would need to use it with my old model C9.25, ZWO ASI1600MM Pro (6.5mm back focus distance), ZWO EFW (20mm thick) and ZWO OAG (16.5mm thick).
In addition to the Alan Gee & the provided 19mm spacer tubes, I would need:
BTA T-adapter
Baader Varilock 29 (at 20mm position)
Baader Centering ring
Is that correct?
Thank you.
Answer rated: 10Yes, you need
- Centering ring for Alan Gee II Telecompressor # 2454410 to use the Alan Gee at the C925
- Baader T Adapter (BTA) for SC and MAK Telescopes # 2408160
- Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool # 2956929 at ca. 20mm
You can play around a liitle bit with the length of the VariLock to vary the magnification factor, if you want to.Answer by: Baader Web Team (Admin) on Dec 16, 2019 12:37:00 PMRated: 28
I have a Explorer Scientific ED127 with 2" focuser.I am looking for a Baader Click-Lock adapter. Which one should i order?
Answer rated: -20You should need the 2" ClickLock M54i x 0,75 (Bresser / Omegon / Explore Scientific) #2956253
https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps/baader-2%22-clicklock-eyepiece-clamps.html#574=1224Answer by: Baader Web Team (Admin) on Aug 4, 2020 9:06:00 AMRated: 28
I am going to be shooting a full solar eclipse this summer. My thoughts are to use a 400mm Canon lens with a 2x converter. The barrel thread is 77mm what do you recommend?
Answer rated: 22We would need the outer diameter of your lens to answer correctly. You will probably need an ASBF 70 or 80 filter.
Please check out our Baader Solar Filter Finder tool to make sure by yourself:
http://astrosolar.com/baader-solar-filter/Answer by: Baader Web Team (Admin) on Jan 9, 2017 8:26:00 AMRated: 28
I just received the #2956268 M68a x 1-ClickLock (Zeiss-norm / Baader M68-System) for my TS ED Apo 102 /714.
I have to screw The Baader ClicLock in the telescope, but i have no locking screws to secure the ClicLock to the telescope.
On my Skywatcher Mak 150 i also have a Baader ClicLock, and that one does have locking screws to secure the ClicLock to the telescope.
So why i can"t the ClicLock to my Apo?
Answer rated: 11Usually, all our ClickLocks - with the exception of those with a ring-dovetail, maybe you have one of those on your Mak? - are only screwed onto the telescope, without an additional locking screw. Some of them have screws to adjust the orientation of the handle, but that's only for conveniance. If you tighten the ClickLock on the thread of the telescope, it's usually strong enough to hold its place even if you aren't too gentle when locking/unlocking the eyepiece.Answer by: Baader Web Team (Admin) on Jan 19, 2022 4:34:00 PMRated: 27
Could you tell me the exact products I need to fit a 2” filter to a DSLR lens of 58mm diameter please?
Answer rated: 1You 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 AMRated: 27
I would be interested in using the UAG II with my conventional C9.25 for monocular observations. I would use it as suggested, i.e., replacing a 2" mirror diagonal's nosepiece with the UAG II, and inserting it into a 2" Clicklock visual back. In this way, the 1.25" eyepiece would be at the nominal distance of ~121 +/- 1 mm from the reducer.
However, some users claim that the UAG II causes aperture loss in this configuration, i.e., the light cone hitting the secondary would be too wide and thus cropped, due to the primary being pushed forward too much in order for the telescope to reach focus with the reducer.
My question is: is this true, and if yes, what would be the amount of the aperture loss? Also, do the UAG II and the original Alan Gee Mark II differ in this respect (the latter being inserted further up into the baffle tube)?
Answer rated: -4The new UAG II is entirely a visual product, only intended for use with the Maxbright II binocular viewer. It is not intended to be used on its own for monocular observation, but for easy, comfotable use with the binoviewer
It is likewise NOT intended to work in front of a 2" star diagonal but only directly in front of the binocular viewer.
Absolutely any telecompressor causes "aperture loss". But not because it would crop the incoming beam, but because it does what the name says - it "compresses" the beam to become smaller in diameter. So, you get a smaller, brighter image.
At the distance of 121 mm the fully illuminatred field circle would be 18 mm and this is mercilessly visible in a CMOS-camera. The light fall off is so slow though that the human eye hardly notices the vignetting until the image circle has reached a diameter of ~23 mm. This is the reason why it is a joy to use with the binocular viewer and 1.25" eyepieces (which have field stop diameters of less that 26mm, and many binoviewers have even smaller prisms), but NOT with 2" eyepieces. Many eyepieces btw. work with this "vignetting trick"to -virtually- sharpen the outermost edge of the field. Check the web for TV-Plossel eyepieces of the first generations which used this "design feature" already 30 years ago.
Vignetting of UAG II and AG II are the same. The AG II was designed around the same time as the TV-Plossels. This was the time of emulsion films hundreds of times less sensitive than modern CMOS-cameras, and when 2" eyepieces did cost a fortune. Please do not try to pursue your project using the AG-lens principle for applications it was not intended for.
For a larger monocular true field of view, we'd recommend a 2" eyepiece like the Hyperion 36mm (the field stop diameter and thus the true field of view is comparable to thos of 2" eyepieces with even longer focal lengths, but the apparent field of view is much larger). If you aim for a brighter image with 1.25" eyepieces, then the UAG (in the standard version, which offers more options for configuration) is the better choice.Answer by: Baader Web Team (Admin) on Mar 30, 2021 1:36:00 PMRated: 27
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: 31Yes 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 AMRated: 27
What size bolt does it take is it M10 or M12
Answer rated: -4The center hole is a standart metric M10 thread, the three (3x120°) outers are 5/16 Inch and pitch is 18.
Answer by: Baader Web Team (Admin) on Sep 24, 2019 9:37:00 AMRated: 27
In the answer posted above, customers are advised that the Baader Wide-T-Ring Fujifilm X cannot be successfully used with a RASA 8 and a Fujifilm XT camera. However, on September 10, 2019, Team Celestron posted a successful report from SEBASTIAN VOLTMER directly into the Baader blog indicating that the Baader Fujifilm adapter is well suited for use with the RASA 8. Baader Planetarium staff even commented on that blog post. Can we now assume the Baader Fujifilm adapter can be used with the RASA 8? If so, please advise if the universal filter changer can also be used. If it can, please specify exactly which parts are needed to use with Baader f / 2 high-speed filters. Thanks in advance for your assistance.
Answer rated: 23Our Wide T Ring puts the Fuji XT3 26mm away from the sensor, while Celestron has designed the RASA for a distance of 25mm. So, the ring is 1mm too far away and does not work - officially. But as the image of Mr. Voltmer shows (https://www.celestron.de/ce_de/rasa-8-erfahrungsbericht-mit-fujifilm-x-t3-sebastian-voltmer/), it is still inside (or close enough to) the tolerances, so that the Wide T-Ring can actually be used and produce very nice images.
But unfortunately, there is not enough space to use an additional filter drawer. We are working on a very flat filter holder and tilter for the RASA 8, the Baader FCCT (Filter Changer and Camera Tilter), but it will only work with astronomical cameras which need less backfocus than a DSLR/mirrorless camera. But please remember that there is not much use in using narrowband filters with a colour camera, as then only one fourth of the pixels is used (usually those sensitive for red, while those for green and blue get no signal). For monochrome astronomical cameras, the FCCT will be an interesting solution. We hope that it will be available in spring 2020.Answer by: Baader Web Team (Admin) on Jan 8, 2020 3:04:00 PMRated: 26
Is there a lunar filter that you recommend for use with this model, both with and without the Barlow attached? I'm assuming 1.25" but I've not been able to confirm elsewhere. Thanks!
Answer rated: 4A 1.25" filter is fine and can be used with both the Barlow and only the Zoom eyepiece.
If you use a 2" star diagonal, you can also use a 2" filter and mount it into the star diagonal or - if you use one - the reducer to 1.25".Answer by: Baader Web Team (Admin) on Dec 29, 2020 12:39:00 PMRated: 26
My 1.8x glass path corrector appears out of collimation on f/5 while the 1.7x works perfectly.
I have the following: Baader 2" glass path corrector for refractors, SC and other systems. Extension factor 1.8x.
I have tested it with various diagonals and in 3 high quality refractors with my Mark V Binoviewer.
Everything looks good in my 180mm F7 and 101mm Petzval F5.4 refractors. But in my 140mm Petzval F5 refractor the stars appear out of collimation on regular stars as well as on an artificial star tested indoors. When I replace the 1.8X GPC with the smaller 1.7X GPC or 2.6X GPC everything looks good. The scope has perfect collimation. However, when I use the 1.8X GPC something is out. It doesn't really make sense so I am wondering if you know what might be the problem. Perhaps F5 is too fast for the 1.8X GPC. Is that correct or could it be something else I am overlooking?
Answer rated: -39your assumption is correct. We manufacture two glasspath correctors with ~2" front aperture that are carefully designed to pick up the full beam to enter into the binocular.
The 1.7x version (2" GPC only) is designed to correct the coma of Newtonian telescopes and work down to f/3.5.
The 1.8x model is designed to work perfectly with refractor telescopes from f/8 to f/6. The design dates back to the days of Carl Zeiss APQ-Apochromates and was done by the APQ-designer, Dr. Pudenz.
We are sorry that the 1.8x (Refractor-)GPC does not perform to your expectation at f/5, but this is the fate of every specialised design, made to perform 100 % at the target application.
Answer by: Baader Web Team (Admin) on Sep 19, 2016 3:40:00 PMRated: 26
I am considering buying the Maxbright ll (mainly because of the clicklock) and was wondering how much difference optically I will see in comparison with original Maxbright that I own. I use them on a Celestron 8SE with TV 2" everbrite dielectric diagonal. Thanks!
Answer rated: 11The main difference which you will notice will be at low magnifications: You can use eyepieces wih 32mm without notable vignetting by the larger prisms. In this regard, it is much closer to our Mark V giant binoviewer than to the smaller binoviewers. Especially with the Universal Alan Gee II - Telecompressor (UAG II) # 2454405, you can get larger field of views han with the old MaxBright or similar binoviewers.
At high magnifications with a smaller field of view, there isn't too much of a difference, except perhaps a little bit in direct comparison because of the coating.
Answer by: Baader Web Team (Admin) on Jan 14, 2021 9:28:00 AMRated: 26
Can you please make this in m54 format as well for the Epsilon and QHY camera system? There isn't sufficient space to use a conversion adapter. But if this were 9.5mm optical length in m54 format it would be perfect.
Answer rated: 17We would like to offer also an M54 Tilter in the future. However this will still take time, and unfortunately we cannot give an estimate yet when it will become available.Answer by: Baader Web Team (Admin) on Nov 29, 2021 8:26:00 AMRated: 26
Please, will this Crayford fit Sky-Watcher Skymax 150 Maksutov?
Answer rated: 19A Sky-Watcher Maksutow 150 is build with a 2" thread so you can directly screw on the Steeltrack SC. Just check before because the
diameter of the focuser is 95mm that you not collide with the original focus knob.Answer by: Baader Web Team (Admin) on Mar 28, 2022 4:43:00 PMRated: 26
I would like to know what is the light transmission of both side of the binoviewer? Do you know how does it compares to Televue or Deinkmeier binoviewer regarding light transmissions?
Answer rated: 24The Maxbright II definitely is on par in transmission with TV- or Denk-binos. We have applied the same optical coatings and beam splitter technology as on the Mark V. We do not endeavor to run into a number competition concerning transmission values and we do NOT try to supersede the exaggerations we see in the Denk-specs. TV is remarkable conservative and we do not claim to be better.
However - we have worked more than four years on making this product irresistible and we did put all experience from 35 years of making binocular viewers into this latest bino of ours. This is NOT just some astro-modded operation-microscope-bino from Taiwan or China. Our product is the smaller version of the Mark V, were we had bought the design and production drawings from Carl Zeiss Jena 25 years ago.
We do tender components for our products worldwide and we do the assembly and QI here in house. If you were to read through the manual for this product (see "Downloads" tab) it ought to become obvious that no one else has given it more care to make this as universal in usability as ever possible. The development costs were too huge to fail. We dearly hope people will see this - at the spot - when using this product the first time.
Answer by: Baader Web Team (Admin) on Apr 20, 2020 2:01:00 PMRated: 26
Does this work with Canon EOS 2000D?
Can I find the right filter frame on this website?
Answer rated: 7"All latest models" also includes the 2000Answer by: Baader Web Team (Admin) on Sep 30, 2022 9:46:00 AMRated: 26
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: -16The 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 AMRated: 26
How waterproof or weatherproof is this zoom eyepiece please?
Answer rated: -26Making a zoom become waterprove has severe consequences. The designer must decide if he can accept a hard rotation action or not. For use with a spotting scope it "could" have been be made waterproof by fitting O-rings into the rotating mechanics to seal the moving area. However - this does work on a short and relatively lightweight spotter - but the rotation movement of the zoom-action in this case is getting stiff and hard to rotate.
For an astronomical telescope this would be an impossible behaviour because the telescope would wiggle when the zoom-action is so hard to turn - especially in winter.... Also the "Click-function" would become impossible to feel - the whole eyepiece would become "just another zoom".
So - in order to enable an effortless zoom action with the click-stops to be just sightly noticeable (if these are "hard-clicks" likewise astronomers do complain!), we omitted a tight seal in the area relevant for the zoom action. However - as soon as the eyepiece is connected onto a telescope (or spotter), the upper lens parts certainly are O-ring sealed and the eyepiece can justifiedly be called water resistant, because rain will not enter.
At any rate - if you are in need of a completely watertight solution for harsh outdoor use on a spotting scope, this eyepiece may not be a solution for you.
Answer by: Baader Web Team (Admin) on Jan 20, 2022 8:23:00 AMRated: 25
What is the correct Baader UFC filter slider to fit the 2" version of this filter? Will it fit into the 2" UFC slider (product #2459112)?
Answer rated: -14Yes, the 2" UFC Filter Slider (#2459112) will fit the 2" version of the Neodymium Moon & Skyglow filter, as long as this is a newly purchased filter in 6mm Low Profile Filter Cell. There are still some old used versions on the market with larger filter cells (8mm height), which won't fit.Answer by: Baader Web Team (Admin) on Jun 27, 2022 8:02:00 AMRated: 25
Have an older unit, are they still available for purchase and can I purchase a part for mine if needed (Transformer and Glass Sun.
Answer rated: -14The Baader Planetarium is still in production. Orders can be placed. Delivery times might be long depending of production shedule. We try to keep all spareparts on stock. If not we do have new parts wich can be installed or used instead of the original parts with slite modifications done by our workshop. If you have a need, please send a e-mail.Answer by: Baader Web Team (Admin) on Sep 13, 2016 5:41:00 PMRated: 25
Is it possible to use the telecompressor with a C11 ?
In that that case is there any adaptator to be used ?
What if a crayford is used ?
Answer rated: -1As both C14 and C11 also offer the standard 2" SC-thread, the Alan Gee can be used with these telescopes, too (as long as you don't remove the 2" SC thread and only use the larger 3" thread).
But we are working on a version of the Alan Gee for 2" eyepiece holders like our 2" Clicklock or a regular focuser. We think that it will be available in no lather than early spring (just follow our Newsletter at https://www.baader-planetarium.com/de/newsletter/), it will be more intuitive to use than the regular Alan Gee. This should be the better solution for you as you can easily use it with your 2" focuser.Answer by: Baader Web Team (Admin) on Jan 29, 2020 8:53:00 AMRated: 25
Will this work in a Skywatcher ED80 ?
I need to put it between the flattener and the scope.
the telescope has M56 male threads in the focuser tube.
The flattener is M48 male in the camera side and M56 female at telescope side. Thanks in advance!
Answer rated: 13It would be no problem with the M48-thread.
Unfortunately, we do not have M56-adapters yet. You'd need someone who can make an adapter from M56 to one of our threads.Answer by: Baader Web Team (Admin) on Mar 23, 2021 12:57:00 PMRated: 25
A couple of followup questions. 1) I noticed the TZ-3 tube has 3 'sections' longest being in front, shortest at rear holding 'collimation'/'pickup' lens and a middle section that appears to be just a spacer. Can the middle section be removed (omitted) such that rear lens becomes closer to front 'input' lens.
2) Is the middle section intend for removal to provide for an alternate closer location of pickup lens or is this just a manufacturing convenience to be a separate part (reuse of existing parts?)?
3) What would be the characteristics of the resulting output beam? Diameter, F#, impact on position of TZ relative to main objective (assume that would not change), impact on distance from TZ to final focal plane which was originally 250mm?
Answer rated: -10This definitely is not the case. Neither the TZ-3 nor any other TZ-system can retain its designed optical performance, when the distance between the internal lens groups is being altered.
Answers for individual questions:
1) The middle intersection roughly marks the position of the initial instrument focal length. The middle section cannot be removed.
2) The middle intersection bears a mask (straylight shield). No part of this product is being "reused" on any other product.
3) A large deviation from the designed 250 mm focal lenght is not advisable. Noticeable deterioration of the image contrast would be inevitable.Answer by: Tobias Baader (Admin) on Mar 13, 2017 12:14:00 PMRated: 25
I am considering a purchase of binoviewer to use with my 305/1500 collapsible SkyWatcher dob. I would like to use ADC for planetary viewing, hence I need at minimum a 2x barlow/f.extender. my question is: could the 2.6 GPC be placed before ADC, i.e. can additional 55mm of lightpath be introduced between the GPC and binoviewer (OTA -> 2.6 GPC -> ADC -> bino)? Focusing distance is not much of an issue, since mirror can easily be moved. I am more interested in understanding how GPC will behave - is it sort of telecentric or 2.6x effect with distance becomes 3x or more.
Answer rated: 5The glasspath corrector behaves more like a barlow lens than like a telecentric - it's best if you think of it as a barlow lens which also corrects the colour aberations of the prisms.Answer by: Baader Web Team (Admin) on Sep 23, 2020 12:15:00 PMRated: 25
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: 26Most 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 AMRated: 25
Can the Flip Mirror 2 be used with the Celestron Edge HD 11 and what adaptor is needed to attach it to the telescope back?
Thank you
Answer rated: 11Yes it can. You only need our SC / HD Ultra-Short T-Adapter #2958500B, as described on page 5 of our FlipMirror II Instruction manual: https://www.baader-planetarium.com/en/downloads/dl/file/id/1568/product/4285/instruction_manual_baader_flipmirror_ii_star_diagonal.pdfAnswer by: Baader Web Team (Admin) on Jun 30, 2020 3:30:00 PMAnswer rated: -1I already purchased the flip mirror to be used with the Celestron 14 HD with celestron adapter 2958500B . can I use the a clicklock 2956233 ?
I have 4 Zwo cameras , 2 color 094 full frame & 2600 & 2 mono 1600 & 174 & Baader Filters size 2 LRGB & set of Ultranarrow Filters ( 3,5nm & 4 ) Which Varible extension rings are recommended , Camera side ?
on the upper side ( I have Eyepieces set 82 degree 1.25 /2 & 100 degree set too =Explore Scientific . your recommedation for connection please ?
I bought also from you Baader Off axis guider 2956951 , Can i attach a star Xpress Lodastar X2 Autoguider ?
I have a Starlight Feather touch Microfocuser for C14 & a Micro Touch Wireless Focusing System . do i need your Steel tracker 2957220 ? Vielen Dank , Ich bin ein Anfanger in Astronomy .Answer by: Kamal Alzayer on Oct 17, 2021 11:10:02 AMRated: 25
I have a APM-SD120-90 degree Binocular with the standard bundle APM18mm eyepiece. It will only take 1.25 inch ep.
I am interested to add more eyepieces to complete the range and magnifications.
Will the whole series of Hyperion episodes work with my bino?
Will the Hyperion zoom work also?
Will the Morpheous series also work?
Answer rated: -12We are delighted that you consider our eyepieces for this APM Bino. Since we don't sell APM products however, we have no further information about this product than what is published on their website. So far we don't see information about backfocus, distance between the eyepiece clamps nor the maximum insert depth of 1.25" barrels.
So these questions ought to be answered (and possibly tested) by the producer. It is solely a matter how much backfocus the designer of the binocular has built into his system and we truly do not know about this.Answer by: Baader Web Team (Admin) on Nov 24, 2022 12:24:00 PMRated: 25
I have a Celestron Edge HD 8 and I am looking to upgrade the visual back to ClickLock to make it easier and more secure when attaching my camera and when swapping between viewing and imaging. I will be using a Sony Nex 6. I have a camera specific T2 adapter already but I am unsure what other adapters I need to get to the magic number of 133mm. I will not be using the 0.7 reducer. Many thanks!
Answer rated: 1The length of the 2"SC thread is 9,9mm and for that the optical legth of the matching ClickLock gets reduced from 47mm to 37,1mm. From the
outer end of the ClickLock #2956220 to the focal plane the distance is now 96,25 referring back focus 133,35 minus 37,1
The camera itself has 18mm backfocus (Sony e=eighteen bayonet) plus11mm for the bajonett/T2 Ring is reducing 96,25mm-(18mm+11mm)
so we have 67,25mm to brigde with following Items:
https://www.baader-planetarium.com/en/baader-2%22--t-2-nose-piece-and-camera-adapter-(same-as-used-by-sbig)-(t-2-part-16).html
https://www.baader-planetarium.com/en/baader-m68-extension-tube-40mm.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-t-2--7.5-mm-extension-tube-(t-2-part-25c).html
Left is now 2,25mm to take 1mm+1mm+0,3mm from this adjustment rings:
https://www.baader-planetarium.com/en/t-2-fine-adjustment-rings-(03--05--1-mm)---aluminium.html
Please check if your bayonet is 11mm - for example, this ring is only 8,3mm:
https://www.baader-planetarium.com/en/baader-t-ring-sony-enex-bayonet-with-d52m48-to-t-2.htmlAnswer by: Baader Web Team (Admin) on Jul 22, 2019 7:58:00 AMRated: 25
What is the in focus requirement of the binoviewer
Answer rated: 41The optical length of the Baader Giant Binoviewer Mark V is 113mm. We suggest to use a 1.25x glass path corrector in order to get the color correction right. This will also enlarge the backfocus of your telescope and will be enough magnification for most applications.Answer by: Baader Web Team (Admin) on Nov 11, 2016 9:26:00 AMRated: 25
I have a Baader 2" click lock diagonal (#2956100) directly mounted to a SCT with a Baader 2" Nexstar locking ring. I just received a Baader 2" filter, but can find no way to insert this into the optical path, before or after the mirror. Is there an adapter available for this. Ideally, I would like to leave the filter in places instead of moving it from one eyepiece to another.
Answer rated: 2You can insert the Baader 2"/2" Inverter Ring with 48mm filter thread # 1508020 into the thread on the inside of the eyepiece side of the star diagonal as shown in this picture: https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/d1/9/baader-2-clicklock-diagonal-mirror-12b.jpg. This should also work when the Clicklock is attached to the star diagonal - please take a look inside the Clicklock to see if the thread is fully acessible, so that you can screw the ring into it.
The ring has got a filter thread and is 12mm long, so either our 6 LPFC or 8mm filters will work.
The other options would be inserting the filter into the 2"/1.25" reducer for your 1.25" eyepieces, or using either #2956237 37mm ClickLock extension or #2956247 47mm ClickLock extensionAnswer by: Baader Web Team (Admin) on Nov 3, 2020 9:58:00 AMRated: 25
With eyepiece projection, the image at the edge is extremely blurred. What could be the reason for this?
Answer rated: 26For eyepiece projection with our Morpheus and Hyperion (zoom) eyepieces, we recommend a distance between eyepiece and T-ring of 40 mm on full-frame cameras, in addition to the 55 mm that were the flange focal distance of all "SLR" and DSLR camera bodies for decades when a T-ring was placed in front. Only with a T-ring that maintains this distance can old lenses with a T-thread deliver sharp images. Therefore, it has been tried to take this distance into account in all designs, because this is the only way to ensure that the sharpness performance is optimal. Of course, all this is only valid to a limited extent today - because the DSLR standard is losing it importance and the term „T-ring“ is all too often reduced to the mechanical thread and not the correct distances. In our brochure on digiscopy, we have therefore stated the back focal distance of 55mm. With a DSLR (full frame or APS-C), this distance is also maintained in good approximation with modern, narrow T-rings, which are intended for use on telescopes, where every millimetre often has to be haggled. For Micro Fourthirds cameras, for example, we have a special adapter that allows both an adaptation with the 55mm standard support dimension and a much shorter adaptation.
Mirrorless system cameras have a much shorter back focal distance than comparatively large SLR cameras. The available T-adapters are usually for use with telescopes with a moving focuser. Here the shorter back focal distance must be compensated by additional extension sleeves, if a certain distance has to be kept.
The example adaptations in our digiscoping brochure thus apply to all T-adapters that follow the T2 standard and deliver a back focal distance of 55mm.
The indicated distances of
min. 40mm spacer sleeve plus 55mm T-2 flange focal distance for full format
min. 30mm spacer sleeve plus 55mm T-2 flange focal distance for APS-C
min. 15mm spacer sleeve plus 55mm T-2 flange focal distance for MFT
were empirically determined (Canon full format, Nikon APS-C (slightly larger sensor than Canon APS-C), Panasonic MFT) and are the values at which the image looked good, i.e. no (disturbing) distortion could be detected in nature photography. However, only the Hyperion Zoom without Barlow lens was used. For decades, we had in principle recommended the 40mm extension; with the smaller sensors, shorter distances (and less magnification) are also possible. The overall length of an adapter ring from the M43 eyepiece thread to T-2 was neglected, or it was regarded as part of the eyepiece.
With shorter overall distances than indicated above, the sharpness in the edges is catastrophic. Only with these distances the image is enlarged in such a way that the entire sensor can be used.
When working with an additional Barlow lens for even more magnification, the resulting effective focal length increases extremely and the system becomes more difficult to control. The thick stack of lenses does not make the image any better, and the telescope opening must provide sufficient resolution, also in relation to the pixel size of the camera. For highest magnifications we therefore recommend the FFC instead of the eyepiece projection in combination with a barlow lens – more on this below.
What can easily be overlooked is that, depending on the camera type and the telescope aperture ratio, a more or less pronounced vignetting is unavoidable.
We regret that we can’t give a binding (or universal) recommendation for an eyepiece-Barlow-lens-combination - for no single eyepiece on the market - where vignetting does not occur. Eyepiece projection is basically a compromise and has been "invented" for planetary photography since the beginning of all photography in order to be able to image a small object in the center of the image with excellent sharpness and very long focal length. The further development of the eyepiece also made it possible to enlarge the usable image area - however, this method is still a compromise. We therefore do not claim that you can achieve perfect sharpness over the entire image field with an eyepiece and a Barlow lens. We also do not claim that you can achieve a completely unvignetted image field!
For exactly this reason - because there has been no solution from anyone in the world (and still is not) - we asked Carl Zeiss-Jena in 1990 to calculate for us a plano barlow lens of any complexity for medium format cameras. Ultimately, this was only possible with two additional crystal substrates made of genuine calcium fluorite (not comparable to simple ED glass). For the Baader Fluorite Flatfield Converter (FFC) Barlow - which can produce an image circle of 90 mm from 4x to 8x - an aperture ratio of 1:10 - as is the case with many refractors - was the basis for calculation at that time. The 90 mm image circle was due to the fact that the famous "PENTAX 6x7" medium format camera was available at the time - with a 90 mm image diagonal.
To this day, this FFC converter lens system is "the sharpest of all Barlow lenses" in the world. And since the full 42mm format uses less than half of the FFC’s 90mm image circle, the FFC works so well even at an aperture ratio of f/5 that it delivers diffraction-limited sharpness even with CMOS chips with ~ 4my pixel size (if the telescope optics and seeing are good enough). However, this only works so well due to the large image distance. If you are looking at the "Baader FFC-Barlow", you will see that the image distance has to be varied between 80 and 150 mm (or even more). So you pay for the excellent optical performance with a very long mechanical construction. Without an excellently stable focuser, this can only cause frustration. Anyhow - You will surely find enough judgments which testify that there is no other projection lens system with sharper - and not vignetting - imaging.
So if photography with very long focal lengths is your main focus, then you would have to replace the combination of the eyepiece with a 2.25x Barlow for a FFC - in addition to the armada of extension rings, which are necessary if you want to use this projection method without mechanical distortion.
Answer by: Baader Web Team (Admin) on Sep 2, 2019 11:47:00 AMRated: 25
Will the filter base and slides be compatible with the new Celestron 8" RASA?
Answer rated: -9We 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 availableAnswer by: Baader Web Team (Admin) on Nov 22, 2018 10:22:00 AMRated: 25
I need an M72 inverter. I have an M72 female thread that needs to be an M72 male thread to mount my accessory. Can you help. I only see M72 to M68 which doesn't help me.
Answer rated: -5I'm sorry, but we don't have such an adapter.Answer by: Baader Web Team (Admin) on May 12, 2020 10:27:00 PMRated: 25
I have a ZWO ASI290MC planetary camera that I would like to attach to my Baader Hyperion 1.25"-2" on a Celestron Nexstar 6SE. What spacing adapter (M43) would I need to attach the ASI290 to the Hyperion 10 mm in order to achieve focus? Would I achieve greater magnification for planetary imaging if I were to attach the ASI290 camera to the Hyperion 10 mm eyepiece instead of using a 2X Barlow?
Answer rated: -1Please take a look at our Digiscoping-PDF at https://www.baader-planetarium.com/en/downloads/dl/file/id/444/product/1210/digiscoping_camera_adaptations_for_afocal_photography_and_eyepiece_projection.pdf where we describe several options to attach a camera or video module.
You need some distance between camera and eyepiece to avoid distortions at the edges; but with a smaller sensor, you can get closer. You'll usually achieve higher magnifications than with a Barlow lens; the formulas for calculating the effective focal lengths are inside of the PDF.
For large sensor and really high magnifications, we recommend the FFC # 2458200Answer by: Baader Web Team (Admin) on Sep 11, 2019 8:48:00 AMRated: 25
What size threads are the two screws that attach the EQDovetail adapter to the finder?
Answer rated: -11It 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 AMRated: 25
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: 24The filter is suited for both cameras.Answer by: Baader Web Team (Admin) on Jan 29, 2019 10:39:00 AMRated: 24
I would like to know the magnification at backfocus distances for the 1.25x, 1.7x and 2.6x GPCs. Even better would be graphs of each showing magnification for each at various backfocus distances or a formula for each GPC.
Answer rated: 39The magnification is depending on the focal lenght of your telescope and the eyepieces that you are using.
If you have a telescope with 1000mm focal length and use a 20mm eyepiece, the magnification is 1000:20 = 50x
When using an Glaspath corrector 1,25 the magnification is 1,25x 50 = 62,5xAnswer by: Baader Web Team (Admin) on Jun 24, 2021 8:25:00 AMRated: 24
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: 6Even 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 AMRated: 24
I would like to ask if the release date of the successor model is already known? Thank you in advance.
Answer rated: -119Please excuse, the release date of the Maxbright G2 is not confirmed and we do not want to have people waiting too long. Maybe you could find a used model somewhere to ease the wait. At any rate, we are working hard to make it very good - seriously better than the G1 Maxbright.Answer by: Baader Web Team (Admin) on Oct 10, 2016 10:13:00 AMRated: 24
Is the 72° available with the 31,75mm plug-in sleeve?
Answer rated: -4No, there is indeed an error in the technical specs data sheet, we will correct this ASAP. The apparent field of view when using the 1.25" barrel is 55°Answer by: Baader Web Team (Admin) on Sep 15, 2017 3:21:00 PMRated: 24
I bought the MPCC to use with a Skywatcher Explorer 150d newton. Using an asi294mc, the only way I will get focus at infinity is to screw the corrector directly in the 11mm m42-m42 ring that comes with the asi. Adding spacers to reach 55mm doesn’t work. I am thus far from that 55mm that is supposedly required to reach focus. Any idea about what is happening here??
Answer rated: 1Do you have any extensions in use which are required to reach focus with an eyepiece? The MPCC is designed to work with a DSLR, that's why it has a working distance of 55mm. To reach focus with a DSLR (or a camera with MPCC), the focusser must be moved farther inwards than with an eyepiece. On some Newtonians, this is made possible by some extension tubes, which must be removed for photography - otherwise, the focuser tube would be in front of the main mirror.
On the other hand, there are Newtonians which are designed strictly for visual or photographic use, both by focus travel and size of the secondary mirror. With these telescopes, it may be that they can't provide the backfocus needed for a DSLR or a coma corrector, although you can reach focus with a camera which requires as little backfocus as your ZWO.
Please check the telescope's manual if there is any information about attaching a cmaera, especially a DSLR.Answer by: Baader Web Team (Admin) on Jul 9, 2020 8:19:00 AMRated: 24
I would like to know if the 2" BDS-SC Baader Diamond Steeltrack fits to my Celestron Nexstar 5SE ?
Answer rated: 9Unfortunately this does not fit. Please see here the drawings https://www.baader-planetarium.com/de/downloads/dl/file/id/29/product/2856/bds_sc_dimensions_technical_drawing.pdfAnswer by: Baader Web Team (Admin) on Jul 28, 2021 11:23:00 AMRated: 24
There’re some discussions about FFC on the web, it seems to designed for photography, do you know anyone using it in visual?
Answer rated: 48As this product was designed to provide perfectly round stars - without increasing their size - to cover the 90 mm diameter field of a 6x6 medium format camera,
the performance is even much more impressive when it is used visually. Many people call it "worlds sharpest barlow lens" - we don´t disagree.Answer by: Baader Web Team (Admin) on Oct 9, 2017 8:37:00 AMRated: 24
Can the Baader 10mm Hyperion 68° Modular Eyepiece be adapted to a Celestron Ultima 80 spotting scope?
Answer rated: 11No, the Ultima spotting scopes don't support eyepieces with 1.25" nosepiece. Only the Hyperion 8-24mm Zoom can be adapted - there, you can remove the nosepiece and screw it into the Ultima spotting scope. This is not possible with fixed-focus Hyperion eyepieces.Answer by: Baader Web Team (Admin) on Aug 17, 2020 1:21:00 PMRated: 23
I’m considering buying your M68 diagonal as part of a project to widen my optical path. It is clear how to connect this to a refractor that has various MXX connections. I also have a legacy 6 in Celestron SC and am not sure how to connect the M68 diagonal to the 2 in screw. It would be obvious which of your adapters to use if I had eg a 9.25 Edge but the step down to the smaller one on the C6 is not clear. I do not want to use the 2in diagonal.
Answer rated: -13You can equip the standard 2" Clicklock star diagonal with a M68-thread using Baader M55/M68 (Zeiss) Adapter for 2" CL-Stardiagonal # 2956110 (https://www.baader-planetarium.com/en/baader-m55m68-(zeiss)-adapter-for-2%22-cl-stardiagonal.html), but then you still have a 2"-star diagonal basically.
The M68-star-diagonal hasn't got this simple option for reconfiguration to 2"-SC-thread. But you can use
- Baader M68 Conversion Ring # 2458195 to change the male M68-thread of the star diagonal to a female thread (https://www.baader-planetarium.com/en/baader-m68-conversion-ring.html)
- M68 to 2" UNFi Conversion Ring # 2458232 to change the female M68 to female SC-thread (https://www.baader-planetarium.com/en/m68-to-2%22-unfi-conversion-ring.html)
- Baader 2" NexStar locking ring. # 2458270 as a counter nut to set the orientation of the star diagonal at the telescope (otherwise it would stop wherever the thread ends). https://www.baader-planetarium.com/en/baader-2%22-nexstar-locking-ring..html
Of, course, this isn't a cheap solution as one more adapter is required, but I'd recommend the NexStar Locking ring whenever you want to screw a star diagonal onto a Schmidt-Cassegrain.Answer by: Baader Web Team (Admin) on Oct 23, 2019 9:09:00 AMRated: 23
I recently purchases a 2" Baader Clicklock visual back to use with my EdgeHD 8" SCT. My issue is that the system is too tight and binds up. When I put a 2" diagonal or eyepiece into the clicklock and go to lock it I can only get about 1/2 of the rotational movement before it gets tight to the point of binding up.
Is this an issue or is it designed like this? I also thought that the part would be smooth when rotated, but I can feel distinct clicks so to speak. I just want to make sure that this unit is good and not defective, and I have never use this type of system before
Answer rated: -13What you describe is completely normal. You only have to turn the lever by about 15 - 20° - if really the 2" barrel has the correct standard diameter. The lever moves much further in order to provide secure clamping action also for badly undersized 2" sleeves/barrels, which we have seen in this industry. A 15-20° turn for standard eyepieces will already put a lot of force onto a 2" barrel - you will note that it will hold your eyepiece or diagonal very firm and securely. You should not try to tighten it up as hard as you can! There is no need to extend a large force when clamping an eyepiece.
The distinct clicks are part of the design. This was designed to let people hear and feel the lever position also in the dark.
Answer by: Baader Web Team (Admin) on Mar 8, 2017 11:27:00 AMRated: 23
Can I use this to connect a 2 inch Celestron diagonal to a Baader clicklock clamp?
Answer rated: 7Probably...
If you want to equip any 2" star diagonal with a ClickLock, you can always use
Baader 2" ClickLock 37 mm extension #2956237
or
Baader 2" ClickLock 47 mm extension #2956247
If you want to replace the nosepiece of a star diagonal with this nosepiece, it depends on the star diagonal. If you can remove the original nosepiece and if you can then access a female SC-thread (2" 24 GZ 60°), then you can replace one nosepiece with another - although this shouldn't make too much of a difference?
If you can remove the clamp of the star diagonal and can then see a male 2" SC thread, you can use the Baader 2" ClickLock SC/HD (2") clamp (C5" - C9¼") #2956220 to replace the original clamp.
Answer by: Baader Web Team (Admin) on Sep 9, 2019 4:20:00 PMRated: 23
I have just received this item. I can’t identify how to find the M43 photo thread. The manual says “when you remove the extendable eyecup..” But how do you remove the eyepiece?
Answer rated: 25This is mentioned on page 6 of the manual. You simply screw the eyecup up to the uppermost position, where there is a small stop. Then, you screw it a little bit more - this is only a stop, so when you screw forther, you remuve the eye cup and can access the M43-thread.Answer by: Baader Web Team (Admin) on May 26, 2021 11:08:00 AMRated: 22
Vorrei chiedervi gentilmente, con quale precisione superficiale, è stato lavorato lo specchio, RMS ed errore di picco/valle, in quanto nelle specifiche, non è indicato.
Grazie
Answer rated: -2Please excuse, but for the purpose of this mirror, this indication of optical flattness is irrelevant.
The mirror quality allows for flawless sharpness up to 300x magnification and it is good for any kind of guiding method.
Please keep in mind that the sales price is below € 200.-
In case you could trust us that we have given this product the same care as with our other Baader-products, we are quite convinced that you could be satisfied. Especially when we had been checking other flip-mirror qualities, to find that theirs is unpolished coated float glass.Answer by: Baader Web Team (Admin) on Mar 15, 2021 11:44:00 AMRated: 22
I have a SCT 8". If I use the 1.7 GPC, will it do the same as using a barlow (magnify)? Or I am not understanding how it works.
If it does magnify what is the difference result using one or the other? Thanks!
Answer rated: -12A glaspath corrector is not a normal barlow. It extends the focal length like a barlow but corrects the color fringing that happens when the light goes through the prisms of an binocular. Means when you use the Glaspath corrector without an binocular, you will have an overcorrection and this will lead to colour fringe around stars. We have different glaspath correctors with different extension factors because the higher the extension factor the further out is the focal point. You can choose between x1,25 wich gives only slightly higher magnification but does not extend the focal point very far out. The x2,6 version has a very high magnification and places the focal point very far out so that even with short Newtonian telescopes it becomes possible to reach focus with an binocular.Answer by: Baader Web Team (Admin) on Dec 22, 2020 8:43:00 AMRated: 22
Do I use a M56 or M57 Clickloc for a skywatcher 72mm Evostar refractor. Thanks Chris
Answer rated: -9We 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 AMRated: 22
First Merry Christmas!
I wonder if someone can help me. I have the original Binoviewers Maxbright and I want to change the screws (6) that hold the eyepieces with "knurdle" kind, easier to change eyepieces. Can you please tell me the size, someone said they are M4. But not sure. Are they metric? Coarse thread, etc.
Really appreciated, I have many of your products and very happy with them.
Thanks again.
Answer rated: 10Hello,
the first version has had M4x0.7metric. The following versions have M3x0.5 metric.
Best regards
Baader Web TeamAnswer by: Baader Web Team (Admin) on Jan 11, 2021 9:27:00 AMRated: 22
To get this Balow to 3x, which Varilock should I buy? The Varilock 29 or the Varilock 46? Thanks a lot.
Answer rated: -15You need an additional 70mm between the eyepiece clamp and the Barow.
For an eyepiece, this can be done with a 40mm tube and two 15 mm tubes.
For photography, you need to know the back focus/flange focal distance of your camera (55mm for a camera with T-2-adapter, or anything down to ca. 6mm for CCD-cameras.
For a video module/planetary camera, where the sensor is close to the 1.25" nose piece (and thus similar to an eyepiece), we'd recommend the 40mm T-2-extension # 1508153 and the 20-29mm VariLock # 2956929Answer by: Baader Web Team (Admin) on Dec 29, 2020 1:34:00 PMRated: 22
My Baader Hyperion 5mm Eyepiece without his ruber ring offers two thread : M43 and SP54 (male) What ring adapter model is necessary for use a 2" filter like this one : Baader Double Polarizing Filter 2" ( #2408344) ? It seems I need a "female 48 / female SP54" ? Thank you
Answer rated: -1Placing a 2" filter behind the eyepiece will cost you a lot of eye relief - the 2" double polarizing filter will cost you 15mm, so that you will have only 5mm of eye relief remaining.
It might be possible with Baader DSLR-2" Filter Holder M48/SP54, # 2408166, but I didn't try it out - it has got a length of 5mm, then you'd have no more eye relief and wouldn't be able to look through the eyepiece...
You can insert 2"-filters between the 1.25" nosepiece and the 2" body of the eyepiece, but this will change the focal length of your eyepiece to ca. 4-4.5mm as described in this PDF: https://www.baader-planetarium.com/de/downloads/dl/file/id/134/product/1209/hyperion_eyepieces_application_examples.pdf
The recommended solution would be a 2"/1.25"-reducer with 2" filter thread, if your telescope has got a 2"-focuser: https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/eyepiece-clamps.html?filter_adapters_type=244&filter_threads_lenssided=575Answer by: Baader Web Team (Admin) on Oct 1, 2020 10:19:00 AMRated: 22
I have a Celestron Edge HD 8" SCT. After a few months using the 40mm kit eyepiece, I'm looking to purchase a couple of Hyperion eyepieces. What ClickLock components would be required to mount this?
Answer rated: 30To use 2"-accessories with an SCT or EdgeHD, we recommend the following parts:
#2956220 SC-Clicklock (for 6", 8", 9¼") or #2956233 SCL-ClickLock (11", 14")
#2956100 Baader 2" ClickLock Diagonal Mirror or #2456115 Baader 2" BBHS ® Mirror Diagonal with 2" ClickLock Clamp
optional: #2956214 Baader 2" to 1¼" ClickLock Reducer (T-2 part #15B) (all Hyperion an Morpheus eyepieces can be used with the 2" barrel; this reducer is only necessary for 1,25" eyepieces)
Especially if your telescope is mounted on an Alt-Az mount, you can use the Baader 2" NexStar locking ring #245827 instead ot the SC-ClickLock to permanently mount the mirror at the back of the telescope - if you remove the nosepiece from our star diagonals, you get an SC-thread which fits directly at the telescope. This way, so can save some space and do not risk that the telescope hits the base of the mount when you point it high at the sky.Answer by: Baader Web Team (Admin) on Apr 26, 2017 8:57:00 AMRated: 22
I have the Hyperion Universal Zoom Mark IV and wondered if you have an adapter to connect it to a Canon Powershot G9 camera so that I can take afocal photos. Thank you.
Answer rated: 34As far as we can see from the specs which are online, the camera does not have a filter thread to use lens filters, so no direct connection to the eyepiece is possible. May the camera's manual or your photo dealer know if external filters can be used - then we'd need to know the filter thread.
Without a filter thread, the only option is a camera stage like our Microstage II Digiscoping Adapter # 2450330
https://www.baader-planetarium.com/de/microstage-ii-digiscoping-adapter.htmlAnswer by: Baader Web Team (Admin) on Mar 17, 2020 8:44:00 AMRated: 22
I don't think I received the right answer to my question on connecting a Nikon Z6 to a Celestron EdgeHD 8.
According to Celestron, the back focus distance for the EdgeHD 8" is 133.3mm.
The Nikon Z series has got a flange distance of 16mm, the Wide T-ring is 8.3mm long, so in total its 24.3mm. The Celestron t-adapter is 50mm long for a total of 74.3mm.
Your answer said I needed 30.7mm of distance, but don't I still need 59mm of distance (133.3 - 16 - 8.3 - 50 = 59)?
Answer rated: 5Maybe the mistake is that there are twi different T-Adapters so please see this two links (sorry only german):
https://www.celestron.de/ce_de/t-adapter-f%C3%BCr-edgehd-8.html
https://www.celestron.de/ce_de/t-adapter-(c5-6-8-9-14-11-14).html
The EdgeHD T-Adapter #93644 is 78,3mm long and needs an extension of 30,7mm that it fits your camer/bayonet ring.
The T-Adapter #93633-A (second link) is 50mm long and could be used too. Just keep in mind that you need then of course
different distance rings/extensions.
Answer by: Baader Web Team (Admin) on Jul 16, 2020 9:36:00 AMRated: 22
Is this made of aluminium or steel? The bar that comes with C8 scope is aluminium and seems to be too soft for screws on AVX mount.
Answer rated: 2This is hard-aluminum and the fit onto the Celestron OTA is better than with the original dove-tail.
It is no probem though if the screw will make an imprint into the aluminum. Still we use a harder variant of aluminum. Steel would be impossible because most mounts would be overweighted.Answer by: Baader Web Team (Admin) on May 11, 2017 2:48:00 PMRated: 22
Do you have an RT which will fit a William Optics Zenithstar 66 SD?
Also is the ZWO EAF compatible with this focuser?
Answer rated: 4Much to our regret, we are unable to keep track of all industries telescopes and adaptation necessities. There are a number of dealers that specialize in adapting our equipment onto telescope-brands that we ourselve do not carry in our own portfolio. Maybe please do a google search using the necessary keywords to find a dealer that sells these brands and can give you advise.Answer by: Baader Web Team (Admin) on Aug 16, 2021 9:03:00 AMRated: 22
Do you have a dimensioned line drawing available for the 2" BBHS mirror diagonal? I'm designing a carrying case for lenses and accessories and want to include room for the future purchase of this diagonal. Thanks.
Barry
Answer rated: -26Unfortunately we have no drawing that fits for this purpose. We can only recommend to buy the mirror before cutting the foamAnswer by: Baader Web Team (Admin) on Feb 1, 2021 11:28:00 AMRated: 22
Am i right in thinking, to rotate the entire focuser housing after installation to align with the OTA, its the 6 black flat head screws that loosen to allow this to be achieved ?
Answer rated: -1Yes, by setting the screws not too tight, you have a slipping clutch. You can also replace one of the screws with a thumb screw (it is a M5 thread, if I remember correctly).Answer by: Baader Web Team (Admin) on May 3, 2021 8:23:00 AMRated: 22
what diameter t2 spacer rings
Answer rated: 0The outer diameter of our T-2 spacer-rings is 46 mm, the inner diameter 42 mm.Answer by: Baader Web Team (Admin) on Sep 2, 2022 9:29:00 AMRated: 22
Can you please confirm the exact Focal Length I need to make 2.5x magnification and 3x magnification?
I see the diagram says 70mm? but one of the responses was that it is 65mm?
Answer rated: 13There seems to be a mistake in the answer, because it was based on the PDF for the VIP-barlow. Please refer to the diagram for the magnifications, it's an additional 70mm for 3x.
You need ca. 32-35mm to reach 2.5x.Answer by: Baader Web Team (Admin) on Oct 5, 2022 4:09:00 PMRated: 22
What are the options (hole and spacing) for attaching to a T-POD 110/130?
Answer rated: 12Please see our technical drawing of the T-Pod head:
https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/ea/7/baader-t-pod-aluminium-tripod-95-130cm-e95.jpg
The flange gets mounted with three screws on the 6xM5 60° LK D77Answer by: Baader Web Team (Admin) on Mar 10, 2021 12:58:00 PMRated: 21
I'm considering Baader FFC for magnifying Venus image through U-Venus filter. Is this better transparency with UV around 350nm wavelength than the other conventional ones such as your VIP 2x barlow.
Answer rated: 23The sharpness performance is definitely better. Only the attenuation through the glass is comparable. In the FFC there are two elements of pure fluorite crystal. This is outstandingly transparent at 350 nm.
But there are two more elements from regular molten glass also in this lens collection. Therefore the pure amount of "normal" glass is about the same.
Nevertheless the transmission at 350 nm should be 90%.Answer by: Baader Web Team (Admin) on Jan 17, 2020 8:11:00 AMRated: 21
What is the internal diameter of the filter cell? I am intending to use these filter cells to house several 25mm OD / 5mm thick filters. Will the smaller filter fit and be secured with the locking ring?
Answer rated: -28Unfortunately, this will not work - the filter cell has got a clear aperture of 26.5mm, so a 25mm-filter would just fall through the filter cell.Answer by: Baader Web Team (Admin) on Oct 28, 2019 9:00:00 AMRated: 21
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: -4The 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 AMRated: 21
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: 3For 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 AMRated: 21
When might you expect Baader MaxBright II Binoviewer to be in stock again. I placed my order with HighPoint Scientific ten months ago, and still you have not had stock. Then can not even give an estimate. I need to know if these will be shipping in the next 2 months or I need to cancel my order and find a different bino viewer. 10 months wait is ridiculous.
Answer rated: 8We understand your anger. Please believe us, we would love to deliver to any of our customers promptly. We also make a living from selling our products, so we have the highest interest in stocking and delivering as much as is needed. But unfortunately we had do deal with many different and new problems in the last 1-2 years like problems with material procurement, failures in production, problems with freight routes. All that lead to the unfortune situation that we currently have, that many products are not availabe. We will have a first batch of Maxbright binoculars for sale in the next few weeks but we have far more orders and reservations than we can deliver with this production run. So there will be many customers who will still have to wait, and unfortunately we cannot say when we will deliver to whom, delivery is strictly on a "first come, first served" basis. Thank you for your continued patience! You will be rewarded with a high quality product in the end.Answer by: Baader Web Team (Admin) on May 9, 2022 8:43:00 AMRated: 21
Will the Baader Fringe Killer filter reduce chromatic aberration for DSLR white-light Solar imaging in achromatic refractors with neutral-density Baader AstroSolar film?
Answer rated: 1Yes it will - this is the purpose of this filter.Answer by: Baader Web Team (Admin) on Sep 30, 2019 11:34:00 AMRated: 21
Please can I ask if I can use my "2 Clicklock T2 with this Diagonal and use my 2" Eyepieces without distortion etc ?