Yesterday, we looked at some gorgeous underwater photography taken with the Canon 5D Mark II. Today, we have an article explaining a bit of the logistics behind such shooting, from the waterproof gear to the reasons you'll curse into bubbles.
In this remarkable clip, world freediving champion Guillaume Nery stands at the edge of the world's second deepest underwater sink hole. And he jumps. The ensuing photography is a hypnotic adventure into the impossible.