Great Grey Owl, Northern MinnesotaI only saw one great grey owl last weekend while in northern Minnesota, and it was well after the sun had set. That said, I was able to crank up the ISO and get a few flight shots as the owl hunted for voles. It was so dark I couldn’t really see the owl through the viewfinder but my camera’s auto focus system could. Nikon D500 with Nikkor 500mm PF lens, ISO 6400, f/5.6 at 1/500th of a second.