[luka]

Hi,

I have a SW ED80 with a field flattener (Hotech SCA) and am planing to add a filter wheel. The imaging will be done with the home-made Cam86 CCD.

What is the usual configuration of the flattener and the filter wheel?
Scope -> Flattener -> Filter wheel -> CCD
or
Scope -> Filter wheel -> Flattener -> CCD

Does it make any difference as long as the correct distance is maintained between the flattener and the sensor?



Also where would the OAG sit, if I ever decide to use one?

Thanks in advance
Luka