HydrOptic Fish Camera

As a fisherman I am always looking for an edge. In clear water the underwater camera provides an advantage over the normal sonic fishfinders. Yes I am a few decades behind on this. But in their current state the AquaViews of the world are also decades behind. They utilize a tube screen and huge 12 volt batteries. Although I love the 80s, we need to update our fishing.
The ETI HydrOptic uses the smart phone that you already have. Just hook it up, drop it in, and take a look. The camera could also have a blue tooth transmitter in the float. It gives the user depth and direction. The phone ap would allow screen shots of fish that would capture time, GPS, and image.
This Idea is about a $500,000 dollar idea as it is only for a select group of sportsmen ( and sportswomen) that frequent clear water. There is also a concern about battery life. The market could be expanded to other commercial applications; bridge inspection, boat repair, or sewer maintenance. If thats the case, I guess we should make a disposable version.