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.
