The Samyang 10mm f2.8 ED AS NCS CS lens features parameters and capabilities comparable to the best wideangle prime and zoom lenses on the market. This manual focus optic is an ideal tool for indoor, architecture, sport, journalism and landscape photography. It provides an exceptionally wide field of view of up to 109.5 degrees and rectilinear image mapping function. Owing to a fast f2.8 lens speed you can also use the lens in low light conditions. The product's optics comprise 14 elements divided into 10 groups, including 2 aspherical AS lenses and one lens made from extra-low dispersion (ED) glass. This is also the first Samyang lens to feature a nano crystal anti-reflection coating system. This technology provides better light transmission, increased resistance to reflections and higher contrast. All of this translates into the supreme optical resolution of the lens.