A part of their modular Astro T-2 system, the Alpine Astronomical Baader Wide T-Ring Set is made up of two parts: The camera-specific bayonet mount ring and an inner adapter ring with standard T-2 female threads. The bayonet ring is designed specifically to fit Nikon DSLR cameras and provides a safe and secure connection.

Out of the box, it will work like a conventional T-ring: It is compatible with all T-2 accessories on the market—including Baader's entire T-2 Astro modular line. But unlike conventional rings, the inner threaded ring can be unmounted from the bayonet ring, allowing the bayonet ring to be used with Baader's S52 rings and accessories. Removing the inner T-2 adapter presents a larger clear aperture than a normal T-ring, which is good for full-frame cameras.

The bayonet ring can also be directly mounted to Baader's Universal Filter Changer (UFC) System without the need for additional adapters. This direct-connection capability provides a solid connection without adding any optical distance. Additionally, a more conventional 2" nosepiece can be installed on the bayonet ring in place of the T-2 ring for mounting your camera body directly into 2" eyepiece holders or accessories.

Part of the Astro T-2 Modular System    Connect DSLR Body to T-2 Accessories    Secure Camera-Side Bayonet Mount    Removable T-Mount for Expanded Uses

Related Questions and Answers

Q: 1. Why are there two Herschel wedges, photo and visual?? why can't one wedge be used for both with some adjustments?

A: The Alpine Astronomical Baader Cool-Ceramic Safety Herschel Solar Photographic Prism Mark II includes all the items in the visual version with the addition of 1.8, 0.9, and 0.6 neutral density filters. Aside for the extra filters, the other components are exactly the same.

Q: 2. My Nikon Action EX 16x50 binos have an outside diameter of exactly 60mm. Should I order the 60mm filters or the 70mm?

A: The Alpine Astronomical 60mm Baader AstroSolar White-Light Solar Filter for Binoculars (Single) would be too large to fit 16x50 binoculars. This Daystar kit would fit instead: https://bhpho.to/3qFnkJe

Q: 3. Is it 7mm or 10mm optical length?

A: Optical Path Length: 0.35-0.94" / 9.0-24.0 mm.

Q: 4. With the Barlow attached, this effectively goes between 3.5mm - 10mm, right?

A: With a 2X barlow correct

Q: 5. Will this work with Bausch and Lomb discoverer scope ?

A: You do understand this is a two part system. This part mounts to your Canon EF mount body. the other end can attach to numerous items https://www.bhphotovideo.com/c/search?Ntt=%20T-2%20Astro%20Modular%20System&N=0&InitialSearch=yes&sts=ma

Q: 6. Baader sells this part packaged also with an M48 ring insert (only in the case of the Sony adapter). Do you include this extra ring?

A: Here is a list of the Baader rings B&H sells for Sony https://www.bhphotovideo.com/c/products/astrophotography-adapter-rings-extension-tubes/ci/48682?filters=fct_brand_name%3Aalpine-astronomical&searchWithin=sony

Q: 7. What size would you recommend for a Zeiss 20x60 IS binoculars? Are these the safest filters to use? Thanks.

A: The Alpine Astronomical 60mm Baader AstroSolar White-Light Solar Filter for Binoculars (Single) BH #ALASBF60 • MFR #ASBF-60 would be the appropriate sixe for the Zeiss 20x60 IS binoculars.

Q: 8. how to adapt this to a camera lens with a 62mm thread (yes, this will result in some vignetting which I will have to tolerate)?

A: Currently B&H does not stock an adapter allowing the Alpine Astronomical H-Alpha 20nm Bandpass Filter (2") to a camera lens with a 62mm thread.

Q: 9. Would this help with focus issue with dslr on nexstar4? I tried using the original T adapter with my dslr and couldn't achieve focus on star.

A: Yes it may work. Also this would also be an option: Meade Variable Projection SLR (35mm OR Digital) Camera Adapter for All Refractor & Reflector Telescopes which Accept 1.25" Eyepieces - Requires Camera-Specific T-Mount Adapter BH #MECAVPSFE • MFR #0736 https://www.bhphotovideo.com/c/product/202793-REG/Meade_07361_Variable_Projection_SLR_35mm.html

Q: 10. Is this item the same as badder Universal Alan Gee II - Telecompressor (UAG II) ?

A: No, the Alpine Astronomical Alan Gee Mark II Telecompressor is not the same as the Universal Alan Gee II - Telecompressor (UAG II). If looking on the baader-planetarium.com site, the item here would be # 2454400, whereas the UAG II is # 2454405.