timh wrote: ↑Wed Sep 07, 2022 8:43 am
I think that is common with lots of light around - as in my Bortle 6 skies
The vignetting in my flats is also shifted to one side, so I think I have an alignment problem with my focuser tube, or the secondary offset isn't quite right.
I'm going to swap out the cheap stock focuser for a Moonlight CR in a week or two (hopefully), and I'll do a full tear down and realignment of everything then. Hopefully that will fix it.
timh wrote: ↑Wed Sep 07, 2022 8:43 am
IAs you no doubt have found DBE is the tool of choice in the PI toolkit. ABE often overdoes it whereas with DBE you can just pick a few points as a first pass.
Yeah, I get hit and miss results with both, but DBE usually works. Every now and then I get really weird rainbow effects that I can't dial out no matter what. I've tried splitting and fitting color channels, running it on the background only (everything removed with Starnet2), etc. Can't find a repeatable cause of it.
I also just recently started playing with SC's background removal postprocessing tool, but only know enough so far to be dangerous.
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