What is the advantage of the Baader T-2 Prism Diagonal's thread system?
The Baader T-2 thread system allows you to create a completely modular and rigid connection between your telescope, diagonal, and eyepiece or camera. This eliminates the potential for tilt, sag, or poor alignment that can occur with standard 1.25" or 2" slip-fit accessories, which is critical for imaging and high-magnification visual work.
Will the Baader 90° Prism Diagonal work with my 2" focuser?
Yes, but it requires the correct adapters, which are sold separately. To connect the Baader T-2 Prism Diagonal to a 2" focuser, you will need a Baader T-2 to 2" nosepiece. On the other side, you will need a T-2 compatible eyepiece holder, such as a Baader 1.25" ClickLock clamp.
Is a 32mm prism diagonal better than a mirror diagonal for my refractor?
It depends on your telescope's focal ratio and your targets. For slower refractors (f/8 and longer) and high-magnification viewing of the Moon and planets, a prism diagonal like this Baader 32mm model often provides higher contrast. For faster refractors (f/7 and shorter) or deep-sky observing, a quality dielectric mirror diagonal is typically preferred for its higher light transmission and better color correction.
Can I use the Baader T-2 90° diagonal for imaging Jupiter with my 100mm f/9 refractor?
Absolutely. That is an ideal application for this diagonal. The high-contrast view delivered by the 32mm prism will help resolve fine details in Jupiter's cloud belts and the Great Red Spot. The rigid T-2 connections will also ensure your planetary camera remains perfectly aligned with the optical axis, free from tilt or flexure.
Why does this Baader diagonal use a 32mm prism instead of a mirror?
A prism is used to maximize image contrast by minimizing light scatter. The internal reflection surface is perfectly smooth and protected from environmental degradation. This makes the Baader 90° Prism Diagonal an excellent choice for observers who prioritize the sharpest possible views of bright objects like the Moon, planets, and double stars.
Will the Baader 32mm Prism Diagonal vignette with a Tele Vue 24mm Panoptic eyepiece?
The 32mm prism provides a very large clear aperture designed to fully illuminate the field stops of nearly all 1.25" eyepieces, including wide-field designs like the 24mm Panoptic. When properly adapted within the T-2 system, you should not experience any significant vignetting caused by the diagonal itself.
