What is the difference between the Baader Vantablack® Edition diagonal and the standard 2" BBHS® model (#2456105)?
The optics, housing, and clamp are identical. The Vantablack® Edition (#2456105B) replaces the standard internal matte-black coating with a Vantablack® 310 coating for more effective stray light suppression and image contrast. It also includes the commemorative beechwood storage box.
What does the Vantablack® coating do for the Baader 60th Anniversary Diagonal?
Vantablack® is an ultra-black coating applied to the internal housing surfaces. It absorbs stray light entering from the telescope more effectively than conventional matte black, suppressing internal reflections and helping to preserve image contrast and fine detail.
Should I choose this BBHS® mirror diagonal or a prism diagonal for my telescope?
As a guideline, mirror diagonals like this BBHS® model are preferable for optical systems faster than about f/6 to f/7. Prisms are generally recommended for telescopes with focal ratios of f/6 to f/7 or slower. This BBHS® mirror also offers a much broader spectral response (390-2000 nm), making it ideal for imaging into the infrared.
Can the Baader 2" ClickLock® clamp securely hold a heavy binoviewer or imaging camera?
Yes. The 2" ClickLock® mechanism clamps accessories firmly on three sides with a simple 20° twist, preventing tilt and ensuring a secure, repeatable connection. For maximum, torsion-free stability with very heavy equipment, the diagonal's housing also provides M55 and S58 threads for direct, screwed-on connections.
Do I need to collimate the Baader adjustable mirror diagonal myself?
No. Each diagonal is precision-collimated at the Baader factory in Germany. The adjustment feature is provided for advanced users building custom systems like bino-telescopes. Adjusting the collimation yourself will void the warranty on the factory alignment, so you should always rule out other issues like focuser tilt first.
Can I use 2" filters with the Baader BBHS® Vantablack® Diagonal?
Yes. The included 2" nosepiece has internal threads, allowing you to install a 2" filter. This is useful for leaving a filter in place permanently, for example as dust protection, while keeping the standard 2" filter thread on your telescope or focuser available for other uses.
