Altair Astro

Prism diagonals give less scatter and therefore better contrast than diagonals using reflective mirror surfaces, including dielectric ones.Prism diagonals are therefore especially good for high power planetary and lunar observing...

The Altair 2" premium diagonal has a CNC machined chassis to hold extra heavy accessories without flexing, a 2" push-fit adapter with non-marring compression ring, and a 99% reflective mirror...

A premium dielectric coated diagonal which is small and compact with very high quality machining and a super-hard black anodised chassis and silver sides. Delivers all the optical and mechanical...