2nd try to post. This weekend I had the opportunity to shoot a fund raiser event and was asked by the singer to shoot a few shots for him to use on his next poster or dvd. Most of the event had to be shot with flash because it was outdoor and at night. I decided to test the D810 with Nikon 17-35 f2.8 in his tent with only a couple of colored lights alternating in color. I took the posted shot at f6.3, 1/10 second, iso 12,500 @26mm pm , on monopod. I could have closed the f stop more, but wanted to include the flag to be sharp. I learned that you can't see the settings on the top of the camera in the dark and that in the future I would have a small flash light along. Thought this might be of interest to some UHHers. Leon