Unlike with most cameras in the compact class, you can attach waterproof converters and 45mm lens filters to the TG-1, TG-2, TG-3 or TG-4 using the CLA-T01 conversion lens adapter. The fisheye converter lens FCON-T01 allows wide-angle shooting without sacrificing the brightness of the f2.0 lens. Even in darker underwater scenes, you can shoot wider, more dynamic images that reproduce the beauty of the underwater world.