August 18, 2018: First reasonable Cygnus shot with 50mm F/1.4

[michael.h.f.wilkinson]

Just 30 lights and 15 darks at 30s ISO 400 with my Canon EOS 550D and 50mm F/1.4 at full aperture. Star shapes are a bit odd. Maybe I didn't get focus right, or I should simply stop the lens down a bit. I will add flats tomorrow to see if that improves things. I also gathered some data with the Carl Zeiss 85mm F/1.4, stopped down to F/2. I will process those tomorrow as well

[michael.h.f.wilkinson]

Slightly better process, now with flats

Must stop the lens down next time, however