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NGC 6939 & NGC 6946 (105mm 5DII).jpg
NGC 6946 galaxy (below and NGC 6939 open cluster (top) on Cygnus-Cepheus boreder. Taken Nov 6, 2010 with 105mm A&M apo refractor at f/5 with Borg .85x flattener/reducer and Canon 5DMkII at ISO 800 for stack of 5 x 12 minute exposures, Mean combined. Used Celestron CGEM mount and Sky-Watcher SynGuider on William Optics 66mm guidescope. All seemed to work well.