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Old 12-30-2011, 04:03 AM
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Quote:
Originally Posted by Ross View Post
I agree except for the 1/focal length.
For those not using full frame sensors, it's 1/(focal length * multiplication factor)
(1.6 on canon and 1.5 on nikons)
Yeah the crop factor is the focal lenth.

100mm lens on a 1.6 is 160mm focal length. So 1/160
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