Compatible with Olympus tough tg-1 tg-2 tg-3 tg-4 tg-5 tg-6 digital cameras The adapter enables the easy attachment of the FCON-T01 fisheye converter lens or the TCON-T01 tele converter lens for expanding your photographic horizons. Its mount accommodates any 40. 5mm filter to further allow your creativity to flow. Front mount diameter 40. 5 mm, length 8. 8 mm (0. 34 inches); Material: ABS plastic 100% replaces CLA-T01 lens adapter