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: A couple of missing features that TechRadar.com's Nicholson says she would have liked include in-camera High Dynamic Range (HDR) processing and a rating button; the camera now requires you to go to the menu to rate photos. In addition, there's no built-in Wi-Fi; you have to buy a separate $600 module. Otherwise, "The 1D X leaves users wanting for almost nothing," says Gallagher from Amateur Photographer.
Pros: Extraordinary images, even in low light, Blistering shooting speed, Built for heavy-duty pro use
Cons: Heavy and bulky, Wireless module costs $600 extra, No headphone jack
Offers a new full-frame image sensor and speeds in excess of 12 frames per second.
14 September 2012
Conclusion: When we first saw the Canon 1D X, way back in the fall of 2011, it became immediately clear that Canon was looking to produce a camera that would be just at home in the bags of both world-class photographers and videographers as it would be with amateur enthusiasts. Bringing together the features of the sports-centric 1D Mark IV and the studio-centric 1Ds Mark III is an ambitious move, designed to capture the majority of the pro market with a single professional body.
Summary: If you're a 1D Mark IV owner in the market for a new professional DSLR, you probably already know you're buying the X. 1Ds Mark III shooters who spend most of their time in a studio may have less motivation to jump, however, considering the current street value of that camera and the benefits of the X when shooting in controlled lighting environments.
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.
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.
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.