At the professional level, the ultra-powerful DSLR is still mighty important, and with that in mind, Nikon is upgrading its beastly D4, with the D4s, a faster ...

The D4S' upgrades start with improved speed across the board. Frame rate has been increased to 11 fps, while images make it from camera-to-card up to 30% faster. Fortunately, Nikon has coupled that ...