Attaching this unique Semi-Fisheye Super Insta-Wide lens to your camcorder, you can produce a creative movie in wedding party, or make practically useful picture in your trade activity such as housing, insurance, construction and others. The Snap-on universal mount is for 27-37mm filter sizes. (Limited in use at most wideangle setting) Nominal 0.3X(Actual 0.3X/diagonal). Size/Weight : 50mm x 13mm 40gr