For what its worth I'm still hacking around this issue (python resize script) for my 60Da see indilib.org/forum/general/2931-image-geo...rsus-fits.html#23302

I got headaches from the geometries caused by my specific workflow, just 1 example:
- I need to catch 30 rapid dusk/dawn flats with constant light so I use local download (Raspberry Pi 3) and CR2
- these later converted to FITs for Siril processing.
- python check all options 5202/5184 x 3405/3465 and outputs only 5184 x 3405

I'm surprised the 600D indeed all canons don't suffer from same issue since as I understand the root bug lies in libraw.

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