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Originally Posted by peter_4059
Just wondering if there is any trade off in small pixel size? Does it change anything other than arc seconds per pixel?
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Shallower wells but also usually less read noise. However, in spite of having lower read noise, dynamic range is generally lower with smaller pixels, so more shorter exposures are needed if we want to control saturation of stars. The biggest advantage of small pixels on a small chip for me is substantially lower cost of the entire imaging apparatus.
As I understand, 2.4 micron pixels are in most cases best matched with fast telescopes (f/5 and faster).