Experience the Depth and Breadth of Image The Samyang Optics 21mm F1.4 ED AS UMC CS is a wide angle manual focus photo lens for mirrorless cameras with APS-C sensor sizes. With broad 21mm angle of view and 3 glass aspherical lenses, it provides an opportunity to experience the depth and breadth of image. Samyang 21mm F1.4 can be used for various purposes, such as exterior and interior landscapes and portraits. You may precisely control the lens when shooting under various exposure environment including relatively dark situations. This lens features 8 glasses in 7 groups including 1 extra low dispersion lens (ED) and 3 glass aspherical lenses (ASP) to offer high resolution throughout the image. Ultra Multi Coating (UMC) of Samyang Optics is used to optimise the light penetration and minimises flare and ghost. With such optical construction, it has 0.28m of minimum Focusing Distance to capture the object in a close distance. There are 9 aperture blades designed to be almost as a full circle when aperture is closed which expresses starlike ray clearly and beautifully. The solid frame of the lens is made of high-strength aluminium alloy so you can create trustworthy images. This compact and light-weighted lens is specially designed for mirrorless cameras for portability. The detachable petal-shaped lens hood minimises flare and ghost by sheltering lens from unnecessary light.