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Lens problem
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30-12-2015, 01:39 PM
Camelopardalis
(Dunk)
Drifting from the pole
Join Date: Feb 2013
Location: Brisbane
Posts: 5,479
Yeah I stop mine down to f/4 to (try to) control the coma, but focus is really tricky as the focus ring is quite free moving. It can be a really sharp lens if you can nail the focus though, otherwise you get halos...
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