The SM OS on the site is still v1.4.4 which is the one that I am using - I clearly don't know where to look for any updated beta versions. As for using GPhoto, I tried that a while ago and it made no difference. Personally, I'm convinced it's a problem with the QHY driver since, though I can't get KStars to run reliably on the rPi4, I did get the INDI server running and got PHD2 open with the QHY5LIIM camera, but it refused to download and preview any images. If I had al alternative guide camera to the QHY, I would try that to see if it made any difference, but I don't sadly. Is there any way to go back to an earlier INDI-QHY driver (and maybe an earlier CANON one) since this has all just apparently started with the September release - it may just be coincidence, but again, this would be a way of eliminating things that aren't the cause of the problem.

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