Just got my new QHY128c in house, but then weather is of course bad ;-)
I have used the evening to test and take some dark frames, but then I was a little surprised when the dark frames were not uniform.
Have someone explanation about it. Is this normal? The picture is at -20 deg C, 180s, gain 2200, offset 80
Edited by Haggish59, 13 February 2018 - 05:40 PM.