It is much like saying all lenses are sharpest at 2 stops from wide open.

Yes, but If you don't how the lens is optimized, as a general rule of thumb it works better than most.

On 9/1/2010 6:03 PM, Bruce Dayton wrote:
One has to wonder how he came to that conclusion.  Seems you would actually 
have to try all the cameras before relying on that.

Perhaps it would be better to try the camera in question before making that 
broad of a generalization.

Changes in sensors and support firmware can have a big impact on these kinds of 
things.  Not to mention design goals of a particular camera.  It is much like 
saying all lenses are sharpest at 2 stops from wide open.  We know that isn't 
accurate because lens designs and goals affect that.


--
"His lack of education is more than compensated for by his keenly developed moral 
bankruptcy."
     -Woody Allen


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