Quote:
Originally Posted by seeker372011
yes but apparently if you stay far away from where the stars get saturated one should be in the linear region..my results plotted scarily close to a straight line
narayan
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You may well be right. Apparently tho, ABG cams continuously skim the CCD of stray photons (hence the lower QE) affecting linearity over the whole dynamic range. I might be getting picky here, again, I dont know really, perhaps the ABG function is roughly linear up to saturation, as you report.