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Old 01-09-2016, 11:20 AM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Nice round stars but some distracting halos and dark rings there. Has this had decon on it?

Donuts in stars could be either focus was a bit off or overexposed stars. I sometimes see them as well and that seems to be what causes them. Overexposure, it shows the secondary mirror in the centre of the star.

What camera is this?

Greg.
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