Quote:
Originally Posted by The_bluester
I reckon LRGB-dither would be the trick. One sub per filter then dither so the next of each will have fixed pattern noise and hot pixels in a different place on the target.
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It depends on how many subs you are going to take. All you need is to not have the unwanted pixels becoming statistically significant such that they avoid rejection during stacking.
Also, you are assuming that your tracking and guiding are pixel perfect in the first place...more likely, there’s some “natural” dithering going on throughout a set of subs. This will depend, to some extent, on the resolution of your guiding and main cameras. It’s possible to guide well, but still shift a few pixels over a period of time in the main imaging camera.