Wrong. Format ALWAYS influences apparent DOF. 

Your statement is a bunch of pixel peeping hooey promulgated by experts who 
have never made a photograph. If this were true, all of the BS about wanting 
full frame sensors to get shallow DoF is wrong .. And the theory is 
demonstrably, easily observably wrong when the theory is tested by anyone who 
has a FourThirds, APS-C, and full-frame camera to experiment with. 

I have all three and have observed that DoF differs format to format with the 
same lens, exactly in accordance with the traditional calculations of DoF 
published in "Basic Photography" by Focal Press circa 1958. 

Godfrey


> On Oct 3, 2013, at 10:35 AM, Larry Colen <[email protected]> wrote:
> 
> Actually, the size of the sensor has nothing to do with the DoF. The size of
> the pixels or grain, do affect the DoF.  Don't worry, this is a common
> circle of confusion.

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