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.
Messier 17, the Swan Nebula, aka the Omega or Checkmark Nebula, with the open cluster M18 below it. I shot this from home on a very clear night (as this object is low for me) on July 29, 2019, using the Astro-Physics Traveler and Hotech f/6 field flattener for a stack of 5 x 8-minute exposures at ISO 800 with the now 10-year-old filter-modified Canon 5D Mark II.
