The Rokinon 16mm Ultra Wide Angle T/2.2 Cine Lens is a great addition to Rokinon's assortment of high quality, affordable, prime lenses. The 16mm lens is designed for cameras with APS-C crop frame sensors. Its build and construction are superb! Like all Rokion Cine lenses this lens features a de-clicked aperture and is follow focus compatible. The lens is constructed of 13 elements in 11 groups and features 2 aspherical lens elements. All of these lens elements combine to minimize distortion and chromatic aberrations. The lens also features a removable hood and takes a 77mm filter. Your pictures are sure to come out razor sharp and clear, even at the corners! The Rokinon 16mm Cine lens features a remarkable 83.1 degree angle of view on APS-C cameras and 67.6 degrees on 4/3 cameras.