Bart wrote: Interesting thought! You could do automatic exposure based on the histogram of the picture. :)

Maybe an interesting option for EKOS in any case? Perhaps with different preset histogram profiles for DSOs, Galaxies and Star Clusters.

I find median worked quite well in the past but sky is the limit. And honestly, its quite easy in python.

Would be very nice to have to be honest. Its quite interesting to get a sub length that swamps the read noise according to several rules of thumb. Sharpcap does something similar to this already with the smart histogram.

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