Reasons for wanting higher mega pixel count

Started 3 months ago | Discussions thread
SilvanBromide Senior Member • Posts: 3,920
Re: Reasons for wanting higher mega pixel count
1

liopleurodon wrote:

...Noise results from the total amount of light collected. An f/2.8 lens on an FF sensor will collect X amount of light no matter how many megapixels are on that sensor.

Yes. In fact, all else being equal (which it rarely is) individual pixels will display higher levels of noise (because, the pixel density must be higher in a 61MP sensor, so each pixel receives less of the available light). I.e. the noise won't change but the received share of light per pixel will be reduced.

Scaled to the same resolution, the overall image noise may be roughly equivalent - or in the case of the Riv, Sony may have other things going on that improve noise characteristics. If so, I'm guessing the improvement will be marginal (not to diminish the importance of *any* improvement).

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