Perceptual MPix score by DxOMark/DPreview ?

Started Dec 18, 2012 | Discussions thread
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blue_skies
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Perceptual MPix score by DxOMark/DPreview ?
Dec 18, 2012

http://www.dpreview.com/news/2012/12/17/dxomark-introduces-perceptual-mpix-score-for-lenses

I see no comments here, but isn't this more relevant for higher resolution sensor like in the Nex-7.

And what about FF sensors - the 24Mp, 36Mp, 48Mp question?

I vote for a 24Mp sensor FF Nex - higher ISO, no vignetting, magenta cast, more lens choices ...

This quote draws my attention:

  • An average of 45% of all megapixels lost
  • The Perceptual Megapixel measurement allows for making numerous comparisons among cameras and for the first time quantifies the impact of lens sharpness on camera resolution. Thus the perceived resolution for a camera can be significantly different from the native resolution depending on the lenses with which it is coupled.
  • For example, when coupled with a Canon EOS 5D Mark II camera with a 21.1 Mpix sensor, a Sigma 35mm F1.4 DG HSM lens has a Perceptual Mpix score of 17.2, whereas a lens such as the Carl Zeiss Distagon T* 35mm f/1.4 ZE has a Perceptual Mpix score of 15.2.

This has been brought up with the Nex-7 sensor numerous times, in numerous reviews. Less so in FF and DSLR types of application, but I can see the same discussion starting there as well.

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Cheers,
Henry

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