Hello All, please read the following:http://www.dxomark.com/en/Reviews/Looking-for-new-photo-gear-DxOMark-s-Perceptual-Megapixel-can-help-you
While I am not sure how much stock to put in this, it rings true.
For example, the sharpness on my D800 seems to be related more to which high quality professional lens I am using rather than the D800's 36 megapixel sensor.
Another example, what about the D7100's 24 megapixel sensor which would be equivalent to 50ish megapixels on my D800 when pixel density is considered? And the D7100 is a DX camera optimized for use with DX lens which have generally inferior sharpness to FX lenses.
While diffraction is only a serious limitation on lens sharpness at F/8ish or slower, current lenses do not come anywhere close to achieving the theoretical diffraction limited sharpness that can be achieved at faster F-stops.
I would appreciate hearing all of your views and thoughts?