This flash signature was photographed using a Nikon D2H DSLR body and a Nikkor 80-200 f/2.8 AF-S lens. The camera was programmed to shoot a 1 second exposure at f/2.8, iso = 400 once/second for a total of 40 frames, the capacity of the camera. This is a relative large file - ~2 Mbytes - if you're on a slower internect connection, please give it time to load.