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Message: <blockquote data-quote="niki" data-source="post: 212655" data-attributes="member: 31070"><p>It's my bad about the crop 4K, maybe I was thinking something else when typing that. It have less area and is recieving less light per area compared to the full frame and thus you get more noise as less photosites are used per that area. Yes, you're right about the size of the photoreceptors, larger ones have less noise as well if there are much more of them it will help for the less noise in the picture but as smaller the photoreceptor goes the image start suffering from diffraction after certain aperture and diffraction affect color reproducing and that is why for example arri alexa's do not go for those crazy resolutions like the other camera manufacturers and alexa is still the best and the most expensive one.</p></blockquote><p></p>