Quote:
Originally Posted by Kunama
The best is the Baader Zeiss T2 prism with the BBHS (broadband hard silver) coating.. but it is also one of the most expensive
Full T2 compatibility, very low scatter, shows colours of stars well...
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Matt, the T2 cannot be a 1.25' with a T2 thread. We might be getting a bit mixed up here as it is a mirror if it has silver coating. I am mostly interested in prisms.
This thought has come to me as I struggle with my UO 2" prism which is excellent optically - much better than a Bintel 99% dielectric that I have but not so good to work with mechanically. There seems to be a dearth of 1.25" prisms on offer. I will probably end up buying a Baader 2" dielectric with the clicklock, but thought first about a 1.25" prism which could also be used in my smaller scopes.
The ultimate solution is the Baader 2" zeiss prism which I think is over 400 euros. not sure I want to spend that much.
(and thanks Suavi - I have that article on diagonals that you linked)
John