I relented and bought one of them new fangled light panels, blame Mr Multiweb and others. Now I religiously shoot flats at the end of the evenings imaging session, regardless of whether I think I have finished or not. That way if I move the camera or focuser before the next session I am sorted. It means about one second subs for the RGB or about five seconds for the Ha filter. mind you, I don't have a shutter, so one second is OK.
Gary
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