"Mitten Spiral:" Long-exposure of the night sky over the West Mitten at Monument Valley. 198 images stacked in Photoshop with a slight "comet" effect created by editing the fill ratio of each of the individual star shots. Nikon D810, Nikkor 14-24mm at 22m, (star shots were each f/3.2, ISO 800, 15 seconds), Manfrotto Tripod, RRS ballhead.