More megapixels, better photos: Fact or fiction?

Started Feb 7, 2008 | Discussions thread
Eric Fossum
Eric Fossum Senior Member • Posts: 1,217
Re: More megapixels, better photos: Fact or fiction?

John Sheehy wrote:

The SNR as you describe it is not relevant to the issue of pixel
density. the integrity of an image is not dependent directly upon
the integrity of each pixel, and the SNR that you refer to is the SNR
of a pixel. It is meaningless for the purposes of imaging taken
alone, except that it is a single factor in image noise.

Of course the SNR I describe is relevant to pixel density (size). And of course the integrity of an image is DIRECTLY related to the integrity of each pixel. Just imagine all the pixels being dead, if you can.

Sensor image quality starts with the pixels and depends both on the signal chain and the number of pixels. IQ isn't all about the number of pixels, but number of pixels helps, all else being equal. This has been demonstrated conclusively.

-Eric

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