Seeking opinions on a non-SCT for imaging

Celestron EdgeHD 11" Equipment Buying Advice
4 replies•110 views
Bruce Donzanti avatar
Bruce Donzanti avatar
Hello All

I have been imaging a few years in my observatory with a C11" EdgeHD and an 80mm Stellarvue APO triplet piggybacked onto it.  My C11" is now having issues so I am exploring options for a high quality scope (any design) to be my main imaging scope.  The C11" EdgeHD is very popular but I am getting tired of the image shift and flop.  I am thinking in the $3-5k price range.
andrea tasselli avatar
andrea tasselli avatar
If you can still find them I'd suggest a 10" Russian Maksutov or Maksutov-Newton (if the mount is up to it), probably second hand for the price but who knows. Otherwise there are a number of RCs (e.g. GSO) out there that should fit the bill. If you want to go fast go for a corrected newton.
Dave Erickson avatar
Dave Erickson avatar
Hi Bruce,
You might want to send  John Hayes a private email, he is an extremely knowledgeable optical engineer who solved those issues quite a while back on his C14. He might offer some suggestions that will help before you abandon the instrument.

Regards,
Dave
Well written Concise
Bruce Donzanti avatar
Bruce Donzanti avatar
Thanks, Dave.  I have actually communicated with John in the past.  I'll reach out to him.
Well written Respectful
Bruce Donzanti avatar
Bruce Donzanti avatar
Thanks, Andrea.  I should have mentioned the mount.  I have an AP1100 which should be able to handle it.    I'll start looking around and hopefully John Hayes will get back to me in the meantime.

I am just discouraged as it always seems to be something and removing my scope which is 10 feet above my observatory floor is not any easy thing to do.
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