Have you ever tried using your Iphone as an Action Camera? You just need to buy the case and chesty for example and you're ready to go (cheaper) The Optrix Photoprox kit for example: "a complete kit that turns your iPhone 5/5S into fully waterproof, fully shockproof action camera. The kit contains 4 interchangeable lenses for different shooting options. It includes a Macro, Telephoto, Fish Eye and Flat lenses. With the use of one of the included lenses, users will experience a great improvement in image quality thanks to the superior sapphire glass, on top of a commercial grade optical glass lens." Anyone used this before?