An ultra-wide fisheye converter lens for OM System (Olympus) Tough TG-series cameras, offering roughly 0.3x magnification and a 130-degree wide-angle field of view without losing lens brightness. It supports the camera's full zoom range, so shooters can move from macro to wide angle on the same dive, and can switch between circular and diagonal fisheye framing. The lens is nitrogen-filled to prevent internal fogging and is independently waterproof to about 15 meters (50 feet). It is compatible with the TG-7, TG-6, and TG-5 and requires a separately sold lens adapter.