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impossible refractor?
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03-09-2015, 09:56 AM
graham.hobart
(Graham stevens)
DeepSkySlacker
Join Date: Nov 2008
Location: hobart, tasmania
Posts: 2,214
refrac etc
I also wondered about just getting an ED 80 or one of its clones and spending big on the flattener -like a Televue one, but I don't know the back focus is any different than most others i.e 55mm ?
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