If the National Geographic photo department was a spy agency, then the photographers would be the field agents and Kenji Yamaguchi would be the genius behind the scenes cooking up all of their James Bond style gadgets. There's a pretty fascinating video over on the Nat Geo site that goes into detail about his job as a camera engineer.
His job is to hack apart cameras and other photo gear in order to meet the needs of National Geographic photographers who are out in the field. He makes everything from housings to wireless flash triggers and motion sensors.
Normally, the rally cry across the internet is about how gear doesn't matter, but this is a good reminder that without cameras, none of us would be making great photos. And this guy knows them better than, well, pretty much anyone else.