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Is it possible to use a 70-200 F 2.8 for astronomy photography??
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06-02-2011, 06:15 PM
Cloudyagain
(Neale)
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Join Date: Sep 2009
Location: Tower Hill
Posts: 178
Chris, if you are going to use a DSLR then just stop the lens down with its in built diaphragm.
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