Cenotes Mexico - Canon 5D Mark III Underwater Video

70% of the underwater footage in this video was shot with the new Canon 5D Mark III. The remaining clips were Canon 5D Mark II and GoPro Hero2. For shooting notes on this video and thoughts on the Canon 5D mark II vs. Canon 5D Mark III... Click this link: http://www.backscatter.com/learn/article/article.php?ID=139