Whats in the box:"Vortex" Fisheye 0.2x HD LensThe Opteka Vortex Lenses produce the highest distortion of any fisheye lens available today. Adding the Opteka Vortex lens to a camera or camcorder zoom lens results with an angle of view up to 220Deg.-Lens Construction: 6 Elements / 4 Groups-Magnification: 0.2X-Angle of View: Up to 220 Degrees-Rear Mount Diameter: 37mm-Front Element Diameter: 101mm (Does not accept filters)-Length: 75mm-Weight: 610g/21.5oz.-Includes Lens Pouch & Lens Caps*Opteka +1, +2, +4 and Macro Close Up Lens Set-Professional High Definition II +1, +2, +4, +10 Close-Up Lens Set Includes pouch-High-index / low-dispersion optical glass-Fully multi-coated, Anti-reflection coating-High speed auto-focus / Infrared compatible-Brand new, Lifetime warranty*37-52mm Ring Adapter*Camcorder Lens Cleaning Set