[The_bluester (Paul)]

I have an A3 panel controlled by an Arduino board.

Martin, I have not sorted flats yet on my 2600 as I have not had enough time to fiddle yet. I reckon somewhere around 20 to 30K will be the ticket on 0 gain, not sure on 100 gain. The ASI294 was very twitchy to do flats on and needed long flat exposures but I am hoping to get away with one second or less with the 2600 and to be able to use bias frames rather thsn dark flats as my imaging software (Voyager) is apparently very good at doing auto dawn and dusk flats, even to the point of dithering the mount in case of some stars still showing up (So they integrate out of the master flat)