Sorry, what pins ?
together with wieght of camera, 5kg is lots of weight to lug around and have'nt considered the tripod yet !
Wonder how it compares in sharpness with the Nikon 70-200 with TC-20E III ? That's a good 400mm against 500mm
I am not a pro but I like the features in the D4. Wonder how different it would be using D800 instead at half the price ?