Deal: Canon 5D Mark III for $1799 November 25, 2016 By Eric Reagan ebay (via ElectronicsValley) has the Canon 5D Mark III for $1799 (reg. $2499) in limited quantity. Check it out here on ebay. Note, this is listed as a gray market camera. ebay seller ElectronicsValley has a positive feedback rating of 99.7% at the time of this post.