Stopping down & sharpness


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Dec 14, 2005
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#1
Will a 70-200mm f/2.8 stopped down to f/4 produce a image as sharp as a 70-200mm f/4 used wide open?:dunno: :dunno:
 

n0d3

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Feb 3, 2003
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#2
Only some lenses require that you stop down to achieve a sharper image. "Pro" lenses such as Canon's "L" lineup, in this case the Canon 70-200mm f/2.8L should produce a image as sharp as/sharper than a image taken with a 70-200mm f/4L.

Then again sharpness is how you perceive it to be.
 

Stoned

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May 7, 2004
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#3
I actually feel the 70-200/4L is marginally sharper wide open. Then again, it's f4.
 

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