NGC 281 emission nebula in Cassiopeia, with 130mm AP apo refractor at f/4.5 with AP reducer/flattener, and Canon 5D MkII at ISO 800 for stack of 6 x 10 minute exposures.
NGC 281 in Cassiopeia, with stack of 4 x 12 minute exposures at ISO 400, with Hutech-modified Canon 5D camera. Astro-Physics 5-inch apo refractor at f/6.
NGC 281, aka the Pacman Nebula, in Cassiopeia, near the stars Achird (top) and Shedar (right). This is a stack of 8 x 6-minute exposures at ISO 1600 with the Canon EOS Ra camera and Astro-Physics Traveler apo refractor at f/6 with the Hotech field flattener. No LENR used here as the temperature was -15° C. A smudge on the field flattener lens added the spike on Achrid at top. High haze added the star glows naturally.
