I was coming back from shooting in the Everglades, and as I passed some farms near Florida City, Florida, I saw this irrigation truck at the end of the field, with a rainbow in the spray of water. I pulled over, and took this shot before the truck moved,the angle changed, and the rainbow disappeared. Nikon D-7100 with a Sigma 150-5000mm lens @500mm. ISO 800, 1/1,000 @ f-13.0.