I used 2 Nikon cameras a Nikon D750 and a Nikon D810. My primary lens for the race was the Nikon 200-500 for around the pits I used the Nikon 28-300. I used the media center as a home base where I did my downloading and editing on a MacBook Air.This was actually the first time I used the MacBook Air on an assignment since it was new. It did great and was very happy with the speed that I defiantly needed since there was a lot of fast action going on.