I am working with a Skywatcher Newton 200/1000 f5, a ZWO ASI1600MM-C, ZWO EFW, and Baader MPCC and I do
get a strange looking Flatframe and the same reflection is visble as well withing the lights.
I do capture the flats with SGP, a Lacerta Lightbox and a white t-shirt inbetween lightbox and telescope.
I do run the SGP Flats Calibration Wizard, set it to 14000ADU +-500 and timing between 0.02s-8s
Have anyone encountered the same "halo"?
I also attached some black vinyl patches within the Skywatcher and the imaging train, but the halo is still
Again, it is visible during taking lights and Flats.
Hope anyone has some solution..