Conclusion: The Canon EOS-1D X is a great choice for sports shooters and photojournalists, but is likely an overkill for most shooters.
Pros: Full-frame image sensor. 14fps burst capability. 61-point autofocus system. Excellent images at very high ISO settings. Built like a tank. Loads of controls. Dual CF card slots. 1080p video capture.
Cons: Very expensive. Heavy. No built-in flash. No headphone jack. Uncompressed HDMI video output not possible. Switching between still and video live view mode is cumbersome.
Conclusion: Shooting is available in Manual, TV, AV, P, Pc1 and Bulb modes and each is accessed with ease by using the mode button found on the top of the camera. Exposure metering has also been improved on the 1D X with a DIGIC 4 processor dedicated solely to metering. A first for Canon and indeed the industry.
Summary: What Canon has achieved with the EOS-1D X is remarkable and we have no hesitation in saying it's the best Canon DSLR we've ever used. The way it produces acceptable results even at ISO 12,800 and 25,600 is extremely impressive. We weren't hesitant at any stage to push above ISO 6400 by a stop or two for the fear of image noise severely degrading image quality in low light situations.
Excerpt: On the surface, Canon’s new pro-level shooter may look virtually identical to its 1D predecessor, but don’t be fooled. As the 10th generation of Canon SLRs, the beastly Canon EOS-1DX ($6,800) is the full-frame juggernaut. Built to replace both the EOS-1Ds Mark III and EOS-1D Mark IV models, it boasts an olympian size list of specs. Let’s discuss.
Canon EOS 1D X – Canon’s new flagship professional dSLR – specs review
1 November 2011
Conclusion: The Canon EOS 1DX is a great successor to both the 1DS Mark 3 and 1D Mark 4, which are already pretty old, and can easily replace them both. The high picture quality from the full frame sensor, coupled with the very fast continuous shooting modes make it a perfect choice for both sports and studio photographers, and Canon has once again shown us that they can easily compete and dominate the professional dSLR market.
Excerpt: The "1" means top-of-the-line , as-good-as-it-gets , #1 , you're-going-to-love-it. The "D" means "Digital". And the "X" represents the "crossover" that has taken place - representing the merging of two product lines - the 1D and the 1Ds lines. The "X" also represents the Roman numeral 10, representing the 10th generation of Canon pro cameras - starting with the F1 of the 70s. Or e X treme.
Summary: Canon has yet again created a truly amazing camera with the EOS-1D X. From the first weekend we got to shoot with it, when we came home with a dozen keepers, up until the last frame we shot for this test, it was simply a pleasure to use.
Cameras at this level have extremely high standards to live up to and the 1D X certainly meets them and in places even exceeds them. The new sensor is extremely impressive in terms of detail but more so in terms of its noise performance in low light. This is the finest Canon DSLR I have tested and though the difference may not be enough to tempt many Nikon users, it represents another step forward in the sports and action market.
Excerpt: This 18 megapixel full frame DSLR is Canon’s professional specification camera. It is built for use by sports and news photographers and photo journalists headed for dirty and dangerous destinations who want an indestructible camera that is fast and responsive. The integrated vertical grip, with duplicated shutter release, focus button and exposure lock houses a larger than usual battery for extended use without recharge.