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New CMOS technologies


rosuna

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I understand so far that diffraction is not limiting maximum resolution of the lens-sensor system, even not with 50mpix sensors in FF format.

Diffraction depends only on the opening/gap where it happens, here the aperture opening. Apertures smaller than f11, better f16 or so, on nowadays APS sensor format can degrade sharpness visibly in pratical photography.

One or two stops stopped down, even good lenses deliver maximum sharpness, let's say at f4.

Now my question. Why should 30 or 50mpix sensors shift the f11/f16 border close to f4 or an even smaller value if the lens itself is good enough to resolve 30 or 50 mpix (at f4)?

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Lenses manufacturers have work to do...

 

yes. it would be great if canon set out to produce wide angel lenses which can be used on high res sensors without recalling coolpix type image quality......as nikon is doing now with their new generation of lenses.

what do i do with 21+mp if the (wide angle) lenses are only capable of resolving 6mp or less (in the corners)?the 50D customers will soon complain to the dealers that their old 30D produced higer quality images.

peter

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