I just received the ASI1600 MMC Pro and am finding a pattern in the integrated images. This is about 6 hrs of Ha data. It is calibrated with darks and dark flats - although it looked more or less the same without any calibration. All frames were dithered aggressively. Gain 200 / 300 @ 300 seconds.
Is the look of this image normal or is something not right?
Here is a link to the file if you need it:https://www.dropbox.com/s/o0sp5yox6r6zsvq/Ha.fit?dl=0