UV (Haze) 1A Multicoated | Multithreaded Glass Filter (40.5mm) For Olympus Stylus TOUGH TG-4 (Includes Filter Adapter) Grade 010 (Filter Factor: 0 Zero) Rugged Metal Filter Ring (Black Finish) | Heat Treated Glass Slim Design Minimizes Vignetting Multicoated Designed For Video Or Photography | Multithreaded