M52 and Bubble Nebula area with 5-inch AP apo at f/4.5 with telecompressor/field flattener and Canon 20Da camera. Stack of four 8-minute exposures. Taken from home Nov. 20, 2006 under very good conditions.
Messier 52 open cluster in Cassiopeia (upper left) and NGC 7635, the Bubble Nebula (centre). Taken from home, Oct 7, 2013 with TMB 92mm apo refractor and Borg 0.85x flattener/reducer for f/4.8 and Canon 5D MkII (filter modified) at ISO 800 for stack of 5 x 15 minute exposures.
8-minute exposures at f/4.5 with AP Traveler apo refractor. 20Da camera (second night out with it) at ISO800, on warm summer night. In camera LENR On. Taken Aug 1, 2005. Thin waning moon had risen by this time so sky was brightening. Two images stacked with top layers at normal, 40% (it was trailed slightly) for noise reduction. Both layers Noise Ninja filtered.
