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Old 19-01-2019, 11:13 AM
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Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,425
Typically, a refractor will need a field flattener for a camera sensor the size of a DSLR. The deliberate bonus with that strategy is that flatteners are usually designed so that the back focus is around 55mm, which is the same as a camera T-adapter and DSLR.
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