Quote:
Originally Posted by Camelopardalis
Malcolm, have you looked at the Celestron OAG? Might sound like an unlikely place, but it’s decently made, pretty heavy duty, and has a large prism. The helical focuser is of the non-rotating kind, from the point of view of the guide cam.
It’s a bit greedy with back focus, but is reasonably priced if you can accomodate it.
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Thanks Dunk. Will do my backfocus calculation and think about that one!!
Cheers
Malcolm