Here are two not particularly good shots that show what an SB800 flash can do. The setting is a school gym where the front stage was lit for the school christmas pagent. Both shot with D200, auto ISO and 17-55 lens frm the back of the hall. The second shot has the flash mounted on camera, pointed at the ceiling with the wide angle diffuser in place. I was able to get about 50 shots at this event with one set of alkaline AA's.