I had nearly given up getting anything worth my while during my photography tour of the famous Antelope Canyon near Page, Arizona. Alas, as we left the canyon we had just a few extra minutes where nobody was around. I quickly set up my tripod, put on the ND filter then looked for just the right angle to have the sun at the edge of the canyon as I shot three exposure straight up to the sky. The magic all came together when I blended the 1/10th, 1/90th, and 1/750th sec exposures together.