What we like:
- Excellent image quality in both JPEG and Raw
- Low noise levels and very good dynamic range
- Class-leading video quality, feature set
- Best Canon autofocus yet
- HEIF HDR files are an excellent replacement for the aging JPEG format
- Refined, yet familiar ergonomics
- Great touchscreen experience
- AF Smart Controller is innovative and useful
- Fast 16/20fps burst speeds in the viewfinder and live view respectively
- CFExpress cards provide for a virtually unlimited buffer
- Extremely robust build quality
- Strong battery life
- Extensive connectivity options for amateurs and pros alike
- Easy to switch between stills and video
What we don’t:
- Subject tracking in the viewfinder can’t match the best peers
- Best AF subject tracking requires live view, which is a bit impractical
- Electronic shutter reduces dynamic range
- Customization options could be expanded
- Menus are increasingly complex, could benefit from more organization
- It’s big and heavy
Conclusion from DPReview:
Canon’s EOS-1D X Mark III is currently the camera to beat in its class. It churns out great images right out of the camera, has class-leading dynamic range and makes for a powerful video camera. Its autofocus subject tracking is, if not head-and-shoulders above its peers, competitive with the best on the market. If you need a rugged camera that can keep up with just about anything you point it at, then look no further.
Sports and action photography professionals, wedding, event and hybrid stills / video shooters, photojournalists.
Not so good for
Dedicated landscape photographers, action, travel and adventure photographers looking for a lighter solution.
You can read the full review at DPReview.