I understand, my description was a bit vague. It's partly because I couldn't fully explain it myself. Pictures would come out super dim and grainy and then randomly look right, and then back to dim and grainy. I wasn't able to identify any kind of pattern to it. I did save a few FITS of the dim grainy images, but I neglected to re-take new images with the same settings once I had corrected it. I could upload those, but it would probably be better for me to just wait until tomorrow night (next clear night) and generate new images with consistent settings before and after applying the latest commit. I'll be back Saturday with more info.

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