This is a photo of a cloudy morning at the Oxbow in Grand teton National Park. I shot this photo with a Nikon D 7100, Nikkor Zoom Lens (18-200 mm.), and a B&W Circular Polarizer. The ISO was 100, F/16, 1/80th second exposure, and a Focal Length of 62 mm. I used a Gitzo Tripod and Arca-Swiss Head.