It's been over half a decade since I imaged a comet and came away with anything half-decent. Here's my attempt at 21P/Giacobini-Zinner which, from here, is currently visible low in the Eastern sky in the pre-dawn hours:
Comet 21P/Giacobini-Zinner, 13th September 2018.
Subs: 27 light @ 300s, dark and bias frames, sensor -20C.
QHY10 on the C80ED-R frac, guided with PHD.
There are some other pics still to process - Uranus and some of its moons - so I might post the results sometime soon if I think they're worth showing.