There was a time, back in the days of film cameras, when the only ways of getting underwater photos were to buy an expensive waterproof SLR, an expensive waterproof housing for a regular SLR, or a cheap disposable waterproof camera that took horrible shots. Now, all you have to do is buy a housing like the TAT7 iPhone Scuba Case, and start snapping high-res pics – assuming you’ve got the phone to go with it.