Fall colors at Undine Falls. I stacked a 2-stop ND filter and a polarizer to lengthen the exposure time. I also used 100 ISO and f/16 and exposure compensation until I found an exposure of ~1/4 sec. Click on the thumbnail for Medium size pic and a second time for a Large size pic.
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Pronghorns can reach speeds of 70 miles per hour and spring 20 feet in a single bound. Fortunately for us this one was taking a late afternoon break. I photographed the pronghorn with the 80-400mm lens at 400mm.
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Renée the non-photographer in the group was very successful at finding animals for us to photograph. She used Canon 10x30 IS Image Stabilizer binoculars.
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The lower falls of the Yellowstone can be seen in the background.
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The colors in the springs are actually produced by microorganisms that thrive in this inhospitable environment.
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Mammoth Hot springs photographed against a cloudy background.
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The bugling of bull elk is a frequent sound during the rutting season.
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A view of the Yellowstone River.
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Gibbon Falls. I stacked a B+W 2-stop ND filter and a Nikon polarizer to take this picture.
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