The Samyang 14mm f/2.8 Aspherical Wide Angle Lens is an excellent addition to any photographer's collection. It allows users the ability to expand their creativity and capture incredible scenes from a truly unique perspective. This manual focus lens creates images with an expanded perspective and sharp focus that extends throughout the entire frame.Optical construction is based on 14 elements in 12 groups. 2 ED low dispersion lenses, one hybrid aspherical element and one glass aspherical element combine to minimize distortion and chromatic aberrations. Advanced optical construction allows this lens to deliver razor sharp images even in the corners. The 14mm f/2.8 works perfectly even with latest high resolution, full-frame sensors. The lens is optically corrected, which is especially useful in architecture and landscape photography, and the 114 degree angle of view allows the user to create extremely unique and interesting pictures.