Conditions for photographing Comet NEOWISE from my observatory near Anza, California were less than ideal. The comet was visible only in the northwest for a couple hours after sunset, at most, which put it squarely in the Los Angeles light dome. Another factor involved was the inexperience of the photographer - I hadn't done any night shooting with my DSLR before and I never got the camera focused properly, so the stars came out somewhat bloated and fuzzy. They also show some coma, I don't know why. But at least the comet itself came out reasonably well.
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TeleVue Pronto scope, Canon EOS-6D DSLR, Celestron AVX mount
Settings:
ISO 400 - f/6.8 - 20 exposures @ 30 seconds each
Notes:
Registered and stacked using Deep Sky Stacker; 20 light frames plus dark and bias frames used for calibration (no flats); final processing in Adobe Photosop