Shooting a DSLR one-handed is a tricky prospect. If, for whatever reason, you only have the use of one of your limbs, you're severely limited in how and when you can shoot a large camera. Small, light DSLRs can be used right-handed, but anything larger (or if you only have use of a left hand) is out. You could use a tripod and artfully compose each scene, but that cuts out many of the more dynamic photography options. But a new concept called One Hand Snap could change that — and for once it's a camera concept that's pretty feasible.