This is the Canon EOS 5D Mark III:
Download the Canon 5D Mark III Manual.
Articles
Canon 5D Mark III Battery Life
Sample photos and movies / video clips / footage
Full-resolution review image samples at Impress. High ISO noise levels are tested too. Most of the walk-around pictures were taken with the Canon 24-105mm f/4L IS USM lens.
This is a fantastic cenotes underwater movie shot in Mexico by Berkley White. Watch the HD (high-definition) version at Vimeo and read the related article at Backscatter.
Resources
Official Canon 5D Mark III page at Canon USA.
Mar 02, 2012 press release on DPReview.com. More press release product photos can be viewed here.
Related
Canon cameras — Main page