Quote:
Originally Posted by Kev11
Maybe Ryan but this is my focus image with mask. DSS will register it just won't stack more than one frame presumably because it scores them all in single digits. It is something to do with the where it puts the lights on the luminance curve, which in turn is something to do with the atmospheric conditions I think.
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Well that looks absolutely bang on. Is there any chance your focuser slipped after focusing ? I could be wrong but just going off the images you posted that is exactly what it looks like with doughnut stars.
You didn’t happen to leave the focuser in the same position from the previous night that worked ? That focus shot was from that particular session ?