Professional photographers know the drill: every few years, Canon or Nikon announces a game-changing DSLR, often prompting top photogs to unload their complete kits and switch to another system in a never-ending attempt to shoot with the best. This time, Canon is first out of the gate, with its flagship EOS-1D X -- the latest in a series that dates back to 2001 with the EOS-1D. As you've probably noticed, the company's new top model looks virtually identical to its decade-old ancestor, but is otherwise a far cry from that four megapixel CCD sensor-sporting dinosaur. We've been anxiously awaiting an opportunity to check out Canon's new $6,800 18.
