The Sigma 18-35mm f/1.8 DC HSM Art Lens for Canon is a wide-angle to normal-length zoom lens that features a fast, bright constant f/1.8 maximum aperture. It is specifically designed for use with APS-C-sized sensors and provides a 35mm-equivalent focal length range of 28.8-56mm. Designed for APS-C-Sized Sensors 35mm Equivalent Focal Length: 28.8-56mm Hyper Sonic AF Motor Internal Focusing and Zoom Design Four…