Professional 0.3x Fisheye Lens (180 Degrees)  5 Element/5 Groups

The 0.3X Super Fisheye Adapter provides an extreme fisheye effect and a high degree of barrel distortion without vignetting. It exaggerates depth by pulling nearby objects closer and causing distant objects to recede into the horizon. Advances in high-index / low-dispersion optical glasses, new barrel materials, and anti-reflection coatings, along with the latest in computer-aided-design / computer-aided-manufacturing, are combined to produce lenses of this quality. Digital Nc in conjunction with Kaesemann by Opteka lenses put more creative control where it belongs - in your hands. DMC (Digital Multi-Coated) Greatly reduces the appearance of lens flare and ghosting caused by reflections. BAB (Internal Black Almite Barrel) Black matte satin finish which reduces reflections. BRG (Black Rimmed Glass) Reduces the chance of light reflecting off the edge.