|
Ritchey Chretien's and image curvature.
I be grateful to hear of other people's experiences with the GSO RCs - particularly the 8". It's amazing how little information there seems to be on the architecture and optical design of the GSO scopes. There is a bit, but not a lot on RCs generally, and the RCOS site is certainly interesting but if you are looking (as I am) for specific info on how the GSO versions perform with a DSLR (as opposed to a large format CCD camera), then you'll be disappointed (or have to lean new skills in Googling the right keywords).
I'm reading that the GSOs have no coma but significant image curvature. I'm afraid I don't know what that means. It's part of what I'm trying to find out - I think.
Peter
|