This is the Canon EOS-1D X is enhanced from the EOS-1D Mark IV. with a completely redesigned to feature 45-point autofocus system with a 10fps continuous shooting, 16 mp, ISO position is sensitive and full HD recording. The “D” means digital and the “1? means top-of-the-line, as-good-as-it-gets, #1. The “Mark IV” in the 1D product name indicates the maturity of this model – the fourth generation.
