Paul,
Can you explain how the Atlas plus Rotator takes up nearly 230mm of backfocus (if I'm reading your post correctly)? Mine uses only 125mm (including the mounting flange to the backplane). In any case, a 108mm flattener wouldn't work so not a nice choice to have to make. Being a remote scope, I'd choose the rotator if I was forced to make a choice.
Cheers, Marcus
|