Guesswork

Blue Heron on the Mississippi
Photograph by Tom Atwood

A photograph like this involves a great deal of guesswork. And luck. The heron was flying at dusk, after the sun had gone down along the Mississippi River at Alton, Illinois. The low light meant using a slow shutter speed, and focus was at best, a guess. I took several pictures of this magnificent bird, and one of them turned out. This one.

Shutter: 1/80 sec; Aperture: f/13; Focal Length: 200 mm; ISO 400