3 ms·
You would actually have more noise, or at least, not less noise. There is readout noise associated with reading the information out from each pixel. Using one b
by tomtom1337 5y ago
You would actually have more noise, or at least, not less noise. There is readout noise associated with reading the information out from each pixel. Using one bigger pixel would give you less noise than four smaller ones :)
- zimpenfish 5y agoI'm no physics or optics expert but this paper seems to suggest you're wrong? https://www.sciencedirect.com/science/article/pii/S0263224119311893 https://www.sciencedirect.com/science/article/pii/S026322411... "...show that an array of small independent sensors is always less noisy than a large sensor of the same size."
- tomtom1337 5y agoSo it would seem! Thanks!
- namibj 5y agoThe summed value scales linearly with the pixel count but the combined readout noise only with the square root of the pixel count. Though, there are indeed other reasons to prefer a 16MP sensor in the first place (most notably, dynamic range, but also allowing slower readout).