The constellation of Canis Major, with Sirius at upper right, and Messier 41 cluster to the left of Sirius, and M46 and M47 clusters above at upper right. This is a stack of 4 x 4 minute exposures at f/4 with 50mm Sigma lens and Canon 5D MkII at ISO 800. Plus two layers taken thru Kenko Softon filter, same exposure info.
The constellations of Canis Major, at left, with the bright star Sirius, and Lepus the hare to the right, with the star cluster M41 below Sirius. This is a stack of 5 x 2-minute exposures with the 50mm Sigma lens at f/2.5 and Canon 5D MkII at ISO 1600, plus an additional exposure through the Kenko Softon filter layered in to add the star glows. Taken from Quailway Cottage in Arizona, with the Star Adventurer Mini tracker.
The constellation of Canis Major and nearby open clusters and nebulas, taken from Coonabarabran, NSW, Australia, December 13/14, 2012, with Sigma 50mm lens at f/3.2 and the filter-modified Canon 5D MkII at ISO 800 for stack of 6 x 4 minute exposures. M41 is below Sirius, M46 and M47 are to the left edge of frame. M50 is above the Seagull Nebula, IC 2177 at upper left. Some exposures had light cirrus cloud passing through which added the star glows naturally. I have turned Canis Major right side up but from Australia it would appear upside down -- the part of the frame closest to the horizon when I took this was the top of the frame. Sirius is at upper centre, vastly overexposed.
