M42 Orion Nebula and Dusty Surroundings BW (Theli v1 Red)
Balcony astrophotography in light-polluted Cologne-Dellbrück (19.5 mag/”2, worse at low altitude)
William Optics GT 81 FD 478mm f/5.9, IDAS LPS V4, TSFlat2, Canon 5D Mark II (a)
Mount AZ EQ6 GT, WO Guiding Scope 50mm f/4, ALccd QHY 5L-II mono
Dithering with BackyardEOS and PHD2
61 x 600s + 21 x 120s ISO 800, 20 flats, 50 bias, 20+20 darks
Image processing using Theli, red channel only, STIFF, Photoshop, Lightroom