Quote:
Originally Posted by glend
SCMOS is designed to meet the needs of the scientific community and there are some caneras in that market now but they are pretty expensive, like the Andor Zyla, Hamamatsu Orca, and others with QE at min 82% now with ultra low read noise. Interestingly the ASI1600 is on par with the best of the sCMOS cameras in low noise performance.
Not sure extreme well depth is that important for 'relative' short sub imaging, as has been pointed out in posts below this one, ultra low noise, and great QE yes for sure. Just shoot and stack more shallower subs, thus processing capability becomes more important, not to forget storage and raw speed, but these are cheap to acquire.
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Combining all of the information that has been discussed thus far basically says that for the absolute best SNR is having a low RN camera with large wells coupled with the longest exposures possible on a target. Take the iKon 231, 2.1e- read noise and 350k e- well depth, easy to take 1 hour subs with very low read noise, 10 hours with this camera and you'll have some of the deepest data possible. You can do 10x1h subs and not even come close to saturating on something like the Helix.
10x 1 hour subs at 2.1 e- leaves a 6.6e- RMS where as a 400x90 with the ASI at 1.3 e- has a 26e- RMS.