You can clearly see some of the common IFN structure around M81 there. I spent hours processing my attempt to capture the IFN in this region, and I recognize those shapes. You can also see Holmberg IX, which is a very faint object and often missed in images of this region. I'm quite impressed by the depth that 110 minute of exposure was able to achieve here. Certainly better than my 5D III could do. There does appear to be some field structure that may not have been corrected by the flat...but wouldn't that be a scope issue, and not a sensor issue? I don't think the sensor has been cooled enough to present RBI, and I'm not even sure RBI is possible with CMOS. Besides, any radial pattern in a sensor this size would show up as arcs around whatever the center of the wafer was, not a radial pattern centered within the image.
I think it's a great test. The low read noise really shines. Tolga, I do have one more question. Was this at unity gain? Or another gain setting?
I should have mentioned that I am sorry. Yes the camera is set to Unity