Baader T-2 BBHS Mirror Diagonal
T-2 BBHS Mirror Diagonal, solid metal body only, with male/female T-2 thread (BBHS = broadband hardsilver coating with dielectric protective overcoating)
The latest addition to the Baader Diagonal family. This diagonal has the same casing as the Maxbright Diagonal (2456100) but with hardened silver with dielectric overcoating. This is the only diagonal mirror of this size made of Sitall-glass ceramics.
Sitall glass is a crystalline glass ceramic with ultra low thermal expansion properties, low thermal expansion is a critical feature needed in the manufacture of optical elements for high quality optical telescopes and accessories such as this mirror diagonal.
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