The Sigma 16mm f/1.4 Contemporary DC DN is a high performance prime lens with a large aperture of f/1.4 designed for APS-C mirrorless cameras with Canon EF-M mount. The Contemporary line is part of Sigma’s Global Vision and is the perfect blend of image quality and compact size. The large aperture is great for lowlight and for creating depth of field and its small size makes it highly portable. | Sigma | | 16mm f/1.4 DC DN Contemporary Lens for Canon EF-M | Best Buy