M39 cluster with 4-inch Astro-Physics refractor at f/4.5 and Canon 20Da camera at ISO800 and 4-minute exposures (stack of two exposures, with one blurred to add glows around stars). Remarkably, two anonymous galaxies are recorded in 4-minutes (they are 17th mag) and are just below the cluster. Plus faint PK planetary to upper left of cluster.
M39 open cluster in Cygnus. Taken Oct 30, 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 10 minute exposures, Median combined. Used Celestron CGEM mount and NexGuider on William Optics 66mm guidescope. All seemed to work well.
Open cluster M41 in Canis Major, below Sirius. Little nebula at left is Sharpless 2-301. This is a stack of 3 x 2 minute exposures in hazy skies with Canon 5D MkII at ISO 800 and Canon 135mm lens at f/2.8. Taken January 6, 2011. Field of view simulates binocular field.
