Inspiration Justin Olsen Uses a Chest-Mounted DSLR for Incredible Mountain Bike Photos Helmet cams have nothing on a full-blown DSLR strapped to the chest of an athlete By Justin Olsen | Published Nov 17, 2011 12:04 AM EST Inspiration Justin Olsen SHARE Justin Olsen Justin Olsen Justin Olsen Justin Olsen Justin Olsen Justin Olsen