Capture more delicate and wider world with portable 12mm extra wide angle lens nano coating system ncs of samyang optics glass asphericalas and low dispersioned lenses hybrid aspherical lens h asp 6 aperture blades creating almost circle shape designed for mirrorless available to aps c it is a extra wide angle manual focus lens designed for aps c crop sensor mirrorless cameras with low distortion and wide angle photographers who want wide angle photos such as landscap