Are bigger pixels less noisy?

Started 4 months ago | Discussions thread
JahnG
OP JahnG Veteran Member • Posts: 3,324
Re: Are bigger pixels less noisy?

Iliah Borg wrote:

JahnG wrote:

Iliah Borg wrote:

JahnG wrote:

how about the combined read noise of 50M pixels compared to the combined read noise of 20M pixels.

The combined read noise can be marginally, and I mean marginally, higher than the noise of a single pixel. Decreasing the maximum charge opens a possibility to improve performance in terms of noise.

Mr. Claff kindly keeps the original Aptina white paper on dual gain, it might help explaining the relationships: https://www.photonstophotos.net/Aptina/DR-Pix_WhitePaper.pdf

Thank you for your comments and for the Aptina white paper.

It's not just about Sony sensors, it's also about noise characteristics dependence on conversion gain and charge capacity.

Thanks, and yes.

Jahn

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