Quote:
Originally Posted by AlexN
Again last night, I had my usual amount of trouble getting guiding to work, after 4hrs with no success I gave it the flick, and ran off a heap of 4 minute unguided shots
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That's impressive for unguided. I'm lucky to get 120sec without guiding before I detect trails.
PixInsight will help you with the vignetting, a Dynamic Background Extraction will clean it up nicely. Or like others are suggesting, some real flats.
Michael