The OM System FCON-T01 is a fisheye converter lens for TG-series cameras, bringing a dramatic wide-angle perspective for landscapes, action shots, and creative composition. It has 0.74x magnification with a 130° angle of view, converting the camera's native lens to an effective 19mm focal length (35mm equivalent) without sacrificing the brightness of the camera's f/2.0 aperture. It's compatible with the TG-7, TG-6, TG-5, TG-4, TG-3, TG-2, and TG-1, and requires the CLA-T01 Conversion Lens Adapter, sold separately, to attach.

The FCON-T01 is waterproof to 15m (12m with the TG-1) when used outside the camera's housing. It does not fit inside or attach through the PT-059 underwater housing, so it's used with the camera unhoused, within its own depth rating. Weight is approximately 125g.