I’ve just recently purchased the ASI2600MC after using the ASI1600MM Pro for the last 2 years. SGP worked awesome with the 1600MM Pro as it was mono and autofocus worked a treat… the issue I seem to be having is that the 2600MC being an OSC, is showing the bayer pattern and is messing with the centroid calculations for autofocus. Does anyone else in here run the 2600MC with SGP? I was using 2x2 binning for the frame and focus as well. If I take a 3s test exposure during the day I see the bayer pattern all over the image.
It is normal to see the bayer pattern, especially when you are zoomed in 200% like in your screenshot. The bayer pattern is there no matter what and it shouldn’t have any impact on autofocus.
I have been using a 2600MC for over a year with no problems. With my 4" f6 refractor I use 5s autofocus exposures, bin 2x2, 9 data points.
I would suggest upping your exposure time a little and see if it helps.