John,

Thank you for figuring this out!! My error for not posting what equipment I'm using to get the frames. I haven't had any trouble with plate solving so far, that seems to work well. Do the two modules share functions?

-ED-127 scope at 952mm focal length - no field flattener.
-QHY600 mono camera set to Gain of 26. This is the advertised "unity" gain for this camera so I'd like to not move it unless absolutely necessary.
-Antila filter set - Luminance for the frames

Could the corner stars be an issue? Is there a way to have autofocus only use the center stars for autofocus? I haven't found a field flattener that fits my scope yet, so my plan for now is to crop out the bad stars or (BlurX them) in the corners.

I will input your settings and record more frames to see how it works. I am still trying to get a full set of offsets for all of my filters.

I am coming from NINA / Windows, so I'm keen to get kstars/ekos working smoothly with my setup (Rpi-5).

I'll be happy to help test any new settings or updates you'd like to try. Assuming we can get some clear nights here. . .

-Keith

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