The EOS 5D Mark II was a game-changing DSLR. The new EOS 5D Mark III builds on the legacy and incorporates some serious improvements for nature photographers.
New AF System
One of the most significant advances in the EOS 5D Mark III is the new 61-point, high-density reticular AF system. This is the same system as the new EOS-1D X, and Canon touts it as the most sophisticated SLR AF system they have ever released. It works in light levels as dim as EV -2, uses the same high-performance AI Servo III AF tracking algorithm as the EOS-1D X and can be configured in a number of ways to suit the shooter. The 21 central AF points serve as cross-types with apertures of ƒ/5.6 or faster lenses. Prior to the EOS-1D X, not even 1-series EOS cameras provided cross-type sensors at ƒ/5.6. This is a particularly welcome advancement for bird, wildlife and sports-action shooters.
Big LCD
It's easy to do live-view and video shooting with the big 3.2-inch, 1,040,000-dot LCD monitor. You can activate a dual-axis electronic level on the LCD monitor or in the optical viewfinder.
6 fps
The Mark III can shoot at 6 fps, making it the fastest over-20-megapixel DSLR currently available. That should make the Mark III a better bird and wildlife and sports-action camera than its 3.9 fps predecessor.
Silent Shooting Modes
There are now silent shooting modes for both low-speed continuous shooting and single-shot operation, ideal features when dealing with skittish wildlife or macro subjects.
HDR Mode
The 5D Mark III gains a new in-camera HDR mode, which merges three bracketed exposures into a single image with more detail from shadows through highlights. An automatic alignment function permits you to do HDRs handheld.
Landscape Photography Accessories
The Battery Grip BG-E11 holds two LP-E6 batteries or a set of six AA batteries, and provides a full set of controls for vertical-format shooting. The GPS Receiver GP-E2 can log latitude, longitude, elevation and universal time code for each image as you shoot, as well as the direction the camera is pointed for the shot.
63-Zone Metering
Canon's 63-zone iFCL (Focus, Color and Luminance) dual-layer metering system was introduced in the EOS 7D. It's a considerable improvement over the 5D Mark II's 35-zone system. It takes into consideration brightness, color and data from each of the AF system's 61 points to provide proper exposures in a wide range of shooting situations. As implemented in the 5D Mark III, it also offers center-weighted, partial (which reads the central 7.2% of the image area) and 1.5% spot metering.
100% Viewfinder
The eye-level viewfinder shows 100% of the actual image area, and can overlay AF points, gridlines and shooting information when you want them.
Essential Accesories
Camera Bag
The Tamrac Adventure 9 is a camera bag and daypack in one. It's perfect for landscape shooters who hike for their trophy shots—it can hold the 5D, lenses and accessories, as well as a jacket and a light lunch. www.tamrac.com
Intervalometer
The Hähnel Giga T Pro wireless remote and intervalometer turns the EOS 5D Mark III into a time-lapse powerhouse. www.rtsphoto.com
SDXC Memory To take advantage of the camera's high-res still and HD video capabilities, the 64 GB Professional X Series memory card from PNY is an excellent option. www.pny.com
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