Sigma 24-35mm F2.0 Art DG HSM Lens for Canon Covering a common prime lens lineup, the 24-35mm F2 DG HSM was designed for prime performance with the versatility of a zoom lens. A large diameter aspherical lens, a complicated element to manufacture, allows for a stunning level of brightness The Sigma 24-35mm F2 DG HSM Art is the worlds first full frame F2 zoom lens