The Grand Prismatic Spring, along with the surrounding area, is one of my favorite spots in Yellowstone National Park. The Grand Prismatic bacterial mats are some of the most colorful bacterial mats in the park. I used a polarizer to enhance the colors and to help minimize the reflection. This is more or less what you see with the naked eye.
This image was taken with my Canon EOS 5D Mark IV using my Canon EF 16-35mm f/4 Lens set on 16 mm. The camera was set on Manual mode with the aperture set at f/11, shutter speed at 1/60th of a second and the ISO set at 100. I used a tripod for stability and my polarizer filter to eliminate the refleciton on the surface. This is a series of seven photographs combined into a single image using Lightroom and completed in Photoshop using Nik Color Efex Pro.
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