Selecting an underwater camera is not easy: there is no one best or right underwater camera to buy, but rather the best or right camera for your specific needs and most unfortunately: your budget restrictions.
To shoot underwater photography you will need a digital camera and a waterproof housing designed specifically for that camera.
Nowadays a lot of people have decent DSLR cameras but vey few also have underwater camera enclosures. And there is a simple reason for that: the enclosures themselves usually cost more than the cameras and are only tailored for one specific type/model of camera. The later prices range form two to five times the average DSLR camera price! Furthermore, they aren't upgradable, and they usually have a limited lifespan.
Being an avid 3D printing fan I've thought for a while what if you could 3D print camera cases/enclosures/grips & other accessories for cheap and customize them to your needs and perhaps even 3D print enclosures for turning your favorite DSLR into an underwater camera!
So consider this the ultimate camera accessorizing project since 3D printing possibilities to upgrade your camera are endless. This project is thus just the beginning, a stepping stone, on the long journey to achieving this. Here the enclosure it-self is not 3D printed but the handles, the internal frame and all accessories are 3D printed and compatible with any DSLR that will fit within.
I also briefly elaborate upon future upgrades and ideas, methods to trigger the camera safely etc.