Secrets Of Hidden Coral Reefs 

thanks. well, everything comes with practice, any camera today will give you a nice footage, if you know how to use it... first, adjust the buoyancy of your rig to 0, if you don't have one, get it, a good one with 2 handles, get a good video lights(5500K) and set underwater White Balance, and, use hight Frame Rate - 50/60p codec settings in your camera, so you can slow it down in post... that's pretty much it... everything else is specific to the scene, time, place and your editing skills....good luck and have fun shooting! scuba diving and uw.photo/video combination is the best hobby/work/travel/adventure you can get!