Thanks for all your feedback. Much appreciated! I knew that this was the right place to ask.
I can work with Atmos or OSLO models, and convert to Zemax.
Reverse engineering these scopes is not hard and there is lots of available data out there, but the problem I have is with properly modeling the corrector plates surfaces. This is why I need the models.
I have all these scopes in classical forms (C8, C11 & LX200-8" in duplicates), and an not using them. I want to mod, at least the Celestrons, for a particular remotely operated task... thus the optics mod, which will include adding some optics to the baffle tube, and replacing the secondary with a mirror coated achromat lens (on the back) - at least want to model it and see if it will work for me.
Any info on C11? That is the one that would be my primary target. C8's will be just for principle testing.
While back I found a discussion on extended tube C8, C11 and LX200, showing the improvements. The post had comparisons to standard scopes, and provided screenshots of the OSLO models. I almost killed myself by looking for it, but simply can't find it. I could have sworn it was on CN. Anyone seen this...?