Hi Guys, I'm using Siril to do some DSO imaging. The issue is that when I use dark frames it usually desaturates the image, sometimes to a point that my signal (usually the red from H-alpha emission) gets washed out as well.
I'm using cosmetic correction, trying go have just a few thousand pixels (less than 10k) corrected. Master dark is generated by stacking Windsor sigma/Median sigma clipping without normalization.
For the stacking algorithm I usually go with Windsor sigma clipping with the default parameters that are 3 and 4 for sigma low/high respectively.
When stacking in DSS everything seems fine, but Siril dark calibration seems a little bit better, that is why I'm trying to make it work.
Here are the files if anyone wants to have a deeper look.
Thanks in advance,