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Northgroup 127 and flatteners?
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23-06-2012, 04:56 PM
[1ponders]
(Paul)
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Join Date: Nov 2004
Location: Obi Obi, Qld
Posts: 18,778
Northgroup 127 and flatteners?
Does the Northgroup 127mm refractor require a flattener for the corners when using a DSLR? If so, any suggestions?
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