Date 12/11/2017. NGC 891. 2x drizzled.
Weather: Good clear skies, some wind, reasonable seeing.
Optics and camera: Skywatcher Evostar 120 F/D=8.33 (Achromat) with a Baader UHCs filter. The camera was a IR-filter removed Canon 600D.
Settings: 50 x 3 minute lights, 50 darks from library, 50 flats taken recently and 50 bias frames. ISO 800.
Mount: Skywatcher AZ-EQ6 with extension pillar.
Processing: Calibration, registration, integration and basic image stretching all done in DSS. Some tweaking done in GIMP. Some issues with the flat (not fully correcting). The frames were is 2x drizzled.
I am pleased with NGC 891, beautiful object with lots of small details. Unfortunately the scope was still cooling down during the imaging and the last 20 frames or so were out of focus. This has given some bloated stars. I think I will stack the first 20 frames and see what I get.