Are bigger pixels less noisy?

Started 4 months ago | Discussions thread
OP JahnG Veteran Member • Posts: 3,323
Re: Are bigger pixels less noisy?

Iliah Borg wrote:

JahnG wrote:

Camera manufactors like Canon, Sony, (Panasonic) have made ”low noise” cameras with less and bigger ”pixels”. Do the manufactors not know what they are doing? (Some people in DPR say that such cameras are manufactored because the customers expect that sensors with bigger ””pixels” would be less noisy?)

Suppose 1 large pixel collects the same light as four smaller pixels occupying the same space. Is it possible?

Sounds logical.

The combined light collecting area of a FF sensor might (roughly) be the same, regardless of if there are 20M bigger or 50M smaller pixels.

But how about the combined read noise of 50M pixels compared to the combined read noise of 20M pixels. One might thus think that the sensor having only 40% pixel count would have much less combined read noise? (Or shouldn't we sum read noise?).

If however even a higher  combined read noise is small compared to the irregular behavior of light itself, then the pixel count wouldn't matter.


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