Unlike with most cameras in the compact class, you can attach waterproof converters and 45mm lens filters to the high-class TG-series using the CLA-T01 conversion lens adapter. The fisheye converter lens FCON-T02 allows circular fisheye shooting without sacrificing the brightness of the lens. Simply change the zoom position of the FCON-T02 to switch between circular fisheye and diagonal fisheye photography. It has a waterproof finish for unique photographic expressions even underwater. The interior of the lens is filled with nitrogen gas preventing internal fogging due to temperature differences. With this unique accessory you can shoot wider, more dynamic images that reproduce the beauty of the underwater world in full scale.