m42, Horsehead nebula

1) M42 Horsehead - Canon 6D, Canon 70-200mm f/2.8 L, 33 x 60 seconds, ISO 2000 (aperture f/2.8-3.5) 2) Horsehead Nebula - Canon 6D(a), 8" f/5 Newtonian, MPCC, 4 x 180 seconds at ISO 800, 1 x 180 seconds at ISO 2000, 22 x 180 seconds at ISO 1600, 7 x 180 seconds at ISO 1000 3) M42 - 89 x 30 seconds, ISO 800-3200, Canon 6D(a), 8" f/5 Newtonian, MPCC, processed with DSS, PixInsight, and PS Express (iOS)