Sunpak CAL-1030KIT 0.5x Wide-Angle Lens with Step Rings Wide-angle conversion lens for digital cameras, still cameras, and video camcorders Doubles coverage of lens at wide-angle setting, producing wider overall picture 0.5x zoom setting; fits camera lenses with 25 to 37mm diameters Includes 25 to 37mm, 27 to 37mm, 30 to 37mm, and 30.5 to 37mm step-up rings