It was a cold, dark, spectacular morning today on the grassland prairie of Nebraska where I got to give my D5 its first hard core shoot (3062 frames, 70GB in 85min). Our subjects where Greater Prairie Chickens, a killer bird with lots of hutspa! So, how did the D5 do IMHO? AF response in really low light attached to the 800mm w/TC shooting 1000mm, f/7.1 with Grp AF … spectacular! Locked right on and held. Didn’t see that coming. Blows away D4s AF performance, hands down. This particular shot was at ISO1600 so I could maintain 1/125 … gorgeous file! The Auto2 WB worked beautifully in the cold light. The best part though was the 12fps sound, feel and performance. I was shooting next to Kevin who has his D5, we compared notes the whole time. Both of us, more than satisfied with the D5 performance. The D5 was simply, big smile, killer fun! Will be updating my D5 settings shortly, made some tweaks. mtc