Quick question regarding flat frames using, in my case, a monochrome CMOS camera (QHY183M): does offset need to be the same as the lights?
Using NINA's there is no way one can set the offset within the Flat Wizard (except on the Equipment > Camera page). The Flat Wizard allows you to define a gain value but not offset. Does NINA automatically tweak offset behind the scenes (during flat frame histogram/exposure calculation)?
Similar story in SharpCap. If I use my light frame settings (gain, offset, etc.) I get a warning that Too many pixels are below 10% saturation, even if the histogram looks correct (peak at 50%). Only when I increase the offset value (and slightly decreasing exposure to compensate) do I get the Histogram: OK status from SharpCap.