Joseph,

Thanks for the feedback. First, I'll say that the graphs are surprisingly (at least to me) close to the published specs from ZWO. Second, let me go back and see if I can get you some clean flats for those gain settings. I took a look at the frames and I can't explain why those 3 gain settings might have exhibited those artifacts. All the flat frames were taken in sequence in order of ascending gain, one pair after the other.

Hopefully get you clean frames in the next day or two.

Fred

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