Are bigger pixels less noisy?

Started 4 months ago | Discussions thread
Eric Fossum
Eric Fossum Senior Member • Posts: 1,516
Re: Are bigger pixels less noisy?

Futax wrote:

I think, what I was trying to say was that, for given technology and sensor size, and ignoring utilisation differences, per-pixel photon noise-to-signal ratio increases (with square-root) as you increase pixel count, whereas per-pixel read noise remains constant.

Have I got the correct picture here?

If you are also assuming you are photon-shot-noise limited for all pixels, and the f-no is the same in all cases, then sure, yes. There are always caveats of course.

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