Messier 16 (Eagle Nebula, top) and Messier 17 (Swan or Omega Nebula, bottom), shot from home in southern Alberta with the objects low on the horizon, July 30, 2011. This is a stack of 5 x 5 minute exposures at ISO 1600 with the filter-modified Canon 5D MkII and the Borg 77mm f/4.3 astrograph lens (300mm focal length), and using the IDAS V3 nebula filter.
M16 Eagle Nebula, taken with 4-inch Astro-Physics Traveler refractor at f/6 with 6x7 field flattener and Hutech-modified Canon 5D camera for stack of 4 x 7 minute exposures at ISO 800. Taken from Coonabarabran, NSW, Australia, April 23, 2007. Taken with scope aimed almost straight up, creating some wobble and guiding error, so slight trailing visible.
