North American Nebula in Cygnus (NGC7000, C20)
Image capture: Canon 760D with Sigma 70-300mm APO DG lens - f4.0, fl 70mm, ISO6400, 10s (11.11.18 21:30h)
Perfect focus achieved using a Starsharp2 Bhatinov grating.
I exposed it for 3s too long and got a bit of star trailing (500/70mm = 7.1s). Will remember next time or fix the camera to a guided mount!
Processing: 10 images stacked using DeepSkyStacker with appropriate flats, darks, and bias frames. Stacked image further processed using Adobe Lightroom and Photoshop.