For TG-1/2/3/4/5/6. Use only with converter adapter CLA-T01. Unlike most compact cameras, you can attach underwater converters and 45 mm filters to the high-quality TG models using the CLA-T01 converter lens adapter. The fisheye converter FCON-T02 allows circular fisheye shooting without restricting the lens aperture. Simply change the zoom position of the FCON-T02 to toggle between circular fisheye and full-frame fisheye photography. It is waterproof and therefore suitable for unique underwater shots. The interior of the lens is filled with nitrogen gas, which prevents internal fogging due to temperature differences. With this unique accessory, you can achieve more dynamic pictures and the great wide-angle, the beauty of the underwater world to full advantage.