Show me what you're referring to.
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Can you tell what resolution those images are based on how the noise looks? I can't. It is only if you compare images at different viewing sizes (e.g. 100 %) that higher resolutions appear more noisy - but that is comparing apples to elefants. Noise in modern sensors is almost entirely due to natural photon shot noise in the light itself, so if you want to compare how well a given sensor does relative to another one, the image sections being compared must have the same amount of light, or in other words, the same area.