So I already have an oly which would be perfect for underware usage because it's got IBIS which could help a lot as nothing is steady underwater... Problem is only the cheapest (proper) underwater cases for oly is from oly, and runs about $450... It's cheaper for me to go out and buy an NEX & meike underwater case, the combo will run me about $400. The nex doesn't have IS on it's smaller lenses nor in body but considering it's cheaper and you can push the iso up more for a faster shutter.... it's about the same for cheaper. So... despite my best efforts to stick with one setup, it looks like it's cheaper for me to just out right buy another camera just to get a cheap underwater case... Hows that suppose to work?