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Old 06-27-2009, 03:05 AM
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Jim Bryant Jim Bryant is offline
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Depends on what lens you're using. From what I use (see below) most of the lens are tack sharp at all f-stops. But all said, for portraits, f11-and above for all lenses.
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(3) EOS1D MKII's, (1) EOS1Ds MKII, 14mmf.28, 16-35mmf2.8, 28-70mmf2.8, 70-200mm f2.8, 300mm f2.8 and a 400mmf2.8.
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