Which lens is sharper with TC-20E III: 70-200mm f/2.8 VRII or 70-200mm f/4 on D800/E

Started Jan 16, 2013 | Discussions thread
MikeInIndy
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Re: Which lens is sharper with TC-20E III: 70-200mm f/2.8 VRII or 70-200mm f/4 on D800/E
In reply to Keith2012, Jan 28, 2013

"Stopping down" only happens when the shutter is fired or the DOF preview button is hit. The camera always focuses with the lens wide open.

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