camera in bioshock?

watch this video it seems that he takes a picture of a big daddy and then it gets graded i wonder what that is all about? maybe you could get money for good pics i dunno, thats the only reason i can think of needing a camera unless you can send your pictures to friends?

http://www.gametrailers.com/player/usermovies/95183.html

^^ probably has to be how else would you? Or maybe we should ask one of those lucky toys r us people.

there are achievements that are photo/camera related

http://www.achieve360points.com/game/bioshock/