We first covered Optrix almost two years ago, when it released the Optrix HD Sport Case for iPhone 4/4S + iPod touch 4G. Now, it's back with PhotoProX for iPhone 5 ($150), combining elements of that early case with Olloclip-like interchangeable camera lenses. The case includes a simple plastic shell and a larger plastic casing that's IPX8 waterproof-rated, as well as capable of protecting the iPhone 5 inside from drops and dust. When it comes…