Hi I've got my ASI6200MM since early 2000. Even new I've found I've got horizontal banding on it despite trying different cables, and different USB limits, different offsets, etc.
I only have 1x ZWO camera. How can I tell if this is normal or if there's an issue with my specific unit?
This is a sample of my Darks (Gain 100, Offset 50, USBLimit 40).
Is this acceptable? Or should I send in my unit for repair?