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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!
Thank you for your help!
Question by: Carlos Labastida on Mar 23, 2018 10:15:00 PM | 1 Answer(s)
I would like to know the total physical lenght (without the T2 thread) of the adapter BTA for SC and MAK (T2 part #21) 2408160. And also what is the lenght of the SC thread of this adapter?
Question by: Armando Zurlo on Feb 6, 2019 5:52:00 PM | 1 Answer(s)
Can the T thread section be rotated relative to the SCT thread section and locked in any chosen orientation of the camera? There appears to be a locking screen (possibly even three of them) to do this but it is easy to misinterpret images on a web page.
Question by: Richard Campbell on Oct 21, 2016 10:57:28 PM | 1 Answer(s)
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The Baader Astro T-2 System™
For over 30 years we have focused on the Astro T-2 thread system (M 42 x 0.75 mm); virtually every telescope manufacturer must offer this thread far ahead of the focal point of his instrument, such a universal T-ring (for DSLR cameras) can be connected. The only exceptions are (still) Russian equipment, there the thread diameter is the same, but the pitch is still 1mm per revolution - rather than 0.75mm! Therefore, we offer among other things a "Russians adapter". At only 7mm additional optical length it can allow so many Russian lenses or telescopes to be compatible with an international Astro T-2 (M 42 x 0.75mm) connector! For the sake of better recognition mostly are marked. See marking small 'a' or small 'i' in the respective indication! "a"; identifies an external thread (male); or, if Ø sign which a diameter, "i"; - a female is always (female) or - Ø character - an inner diameter. The Optical Length The optical length describes the extension of the optical path caused by an adapter or accessory when inserted into the beam path of the telescope. The values listed in the system table rounded to 1/2 mm. For pure threaded adapters...
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Additional Information
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 2408160 |
| EAN Code | 4047825012692 |
| Weight (kg) | 0.066 |
| Optical length (mm) | 15 |
| T-2 Part # | 21 |
| Usage | SC-T photo adapter |
| Inner Diameter / Clear Aperture (mm) | 38 |
| Outer Diameter | 56 |
| Inner Connection (lens sided) | Thread, T-2 (M42 x 0,75), 2" (50,8mm) |
| Outer Connection (eyepiece/-camera-sided) | Thread, T-2 (M42 x 0,75) |
| Adaptable to | all male 2" SC-Gewinde from 5/6/8/11/14 OTAs |
| Compatible Brands | Astro T-2, Baader Planetarium, Celestron |
| Type of Adapter | Reducing piece |
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