The KAPKUR Vortex Lenses produce the highest distortion of any fisheye lens available. Adding the Opteka Vortex lens to a camera or camcorder zoom lens results with an angle of view up to 220Deg. Advances in high-index / low-dispersion optical glasses new barrel materials and exotic anti-reflection coatings along with the latest in computer-aided-design / computer-aided-manufacturing are combined to produce lenses of unprecedented quality. Diamond-cut from crystal-clear water-white optical glass Opteka lenses are ground and polished to a precise precision.
Lens Construction: 6 Elements / 4 Groups Magnification: 0.3X Angle of View: Up to 220 Degrees Rear Mount Diameter: 72mm Front Element Diameter: 101mm (Does not accept filters) Length: 75mm Weight Element Diameter: 630g/22.2oz