Features a 61-Point High Density Reticular AF system
The new 5D Mark III is also equipped with Canon's EOS Integrated Cleaning System, featuring a Self Cleaning Sensor Unit with a fluorine coating that repels dust and dirt particles.
Canon-Exclusive DIGIC 5+ Imaging Processor
The EOS 5D Mark III's new DIGIC 5+ Imaging Processor is 17 times faster than the DIGIC 4.The EOS 5D Mark III uses that extra speed not only for improved image quality, but also to add no less than nine new features that do not exist on the 5D Mark II. These new features include six fps continuous shooting, HDR and Multiple Exposure modes, in-camera RAW processing, a comparative playback function, Scene Intelligent Auto mode, two forms of movie compression, and support for high-speed UDMA 7 Compact Flash memory cards.
Another extremely valuable feature enhanced by the DIGIC 5+ Imaging Processor is the EOS 5D Mark III's choice of reduced resolution M-RAW (10.5 megapixel) and S-RAW (5.5 megapixel) recording modes. These settings are particularly useful to wedding photographers for candid photos that do not require the EOS 5D Mark III's 22 megapixel full resolution, because they take up less space on the memory cards and speed up post-processing without losing the critical benefits of RAW image data, such as highlight and shadow control as well as white balance adjustment. M-RAW and S-RAW also preserve the full field of view rather than cropping the image or resorting to JPEG mode to reduce resolution.
High-Performance 61-Point High Density Reticular AF
For still photographers, Canon has included its new 61-point High Density Reticular AF System, originally introduced with the top-of-the-line EOS-1D X professional camera. A significant advancement over previous 5D-series AF systems, the new 61-Point High Density Reticular AF included in the EOS 5D Mark III is the most sophisticated SLR AF system Canon has ever released. All 61 points are manually selectable and sensitive to horizontal contrast with maximum apertures larger than or equal to f/5.6. The camera's twenty one focusing points in the central area are also standard precision cross-type and effective with maximum apertures larger than or equal to f/5.6. The center five points are ultra-high-precision diagonal cross-type points for maximum apertures larger than or equal to f/2.8. The 20 outer focusing points function as high-precision cross-type points with maximum apertures larger than or equal to f/4.0. Other innovations of the new 61-point High Density Reticular AF include expanded AF coverage area, superior focusing precision and low-light sensitivity to EV -2, and greater low-contrast subject detection capability compared to earlier EOS AF systems.
All AF functions now have their own menu tab for quick and easy access (formerly AF custom functions in previous EOS models). A new AF Configuration Tool allows for customized setting of tracking sensitivity, the acceleration and deceleration of tracking subjects, and AF point auto switching, all of which are easily accessed and adjusted via the new AF menu tab. A built-in Feature Guide advises photographers on which settings to use according to subject matter.
The EOS 5D Mark III uses the same high-performance AI Servo III AF tracking algorithm as the flagship EOS-1D X professional DSLR. This new feature works together with the 61-point High Density Reticular AF system to provide superb tracking performance that blends very well with the new camera's 6 frames-per-second high-speed continuous shooting capabilities.