North America Nebula NGC 7000 and Pelican Nebula IC 5070 (to the right) for stack of 4 x 14 minute exposures with Borg 77mm apo refractor at f/4 and Canon 20Da camera at ISO 400. Taken on a superb night, Sept. 11, 2007.
NGC 7000 with 101mm Borg apo refractor at f/4.1 and Canon 20Da camera at ISO400 for stack of 3 x 10 minute exposures. Taken on a very warm night in July 2007, though in-camera dark frame eliminated most noise. Taken with HEQ5 mount autoguided with ST402. Some odd trailing in Dec.
North America Nebula in Cygnus. Taken Oct 31, 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 15 minute exposures, Mean combined. Used Celestron CGEM mount and NexGuider on William Optics 66mm guidescope. All seemed to work well.
