Need for speed! Canon has always been a very popular, innovative company, especially when it comes to camera technology. Canon's latest creation, the 1D X, is a perfect example. Based upon early reviews and our own testing, it is very clear that Canon listened to input from the professional photography community in designing and building the 1D X. So many things we all wished would be improved have finally been addressed, including improvements to the auto focus system, new tracking technology and significantly increased speeds. The 1D X does an excellent job in low light environments and is extremely fast with bursts of up to 12 frames per second. The rapid fire is definitely a tremendous improvement...great job Canon!