The Saturn Nebula, NGC 7009, a planetary nebula in Aquarius. This is a 5 x 8 minute exposure stack with the Canon 7D at ISO 800 and 130mm Astro-Physics refractor at f/6. The field is relatively wide and focal length too short to show much detail on this small object, but the field does simulate what you would see at low power through a telescope.
NGC 7023, the Iris Nebula, in Cepheus with associated dark nebulosity. This is a stack of 5 x 12 minute exposures with the TMB 92mm apo refractor and Borg 0.85x flattener/reducer for f/4.8 and filter modified Canon 5D MkII at ISO 800.
NGC 7023, the Iris Nebula in Cepheus, shot at prime focus with the 130mm f/6 Astro-Physics refractor with 6x7 field flattener and Canon 7D camera at ISO 800 for a stack of 4 x 8 minute exposures Mean combined. Shot at the Saskatchewan Summer Star Party, Aug 17, 2012. On mach 1 mount and guided with SBIG SG-4 autoguider. A fairly noisy image with all the boosting of the faint nebula detail, the relatively noisy 7D camera and only 4 sub-frames to stack.
