Are bigger pixels less noisy?

Started 4 months ago | Discussions thread
D Cox Forum Pro • Posts: 29,367
Re: Are bigger pixels less noisy?

A sensor with smaller pixels can record both noise and signal (image details) at higher spatial frequencies.

On (for instance) an area of clear blue sky in a landscape, when viewed at a high magnification, you might see more noise. In an area of the image with leaves and branches, the signal (differences between each patch of the image and its neighbours) will swamp the noise, assuming the lens is of high quality.

Note that viewing at "100%" will give different magnifications for different pixel sizes. For comparison, it would be best to make same size big prints and examine them closely.

Don Cox

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