The Raynox HD-3035PRO Semi-Fisheye Conversion Lens (0.3x, 37mm) gives you an expanded angle of view, up to 180%. Use it with your camcorder or digital camera to capture far out images. The conversion lens features a high definition design that includes 2 elements and 2 groups. A lens shade mask for keeping out glare is included, as are 5 adapter rings for use on a number of cameras. Included adapter rings sizes are as follows: 27mm, 30mm, 30.5mm, 34mm, 43mm.