Sigma 85mm f/1.4 DG HSM Art Lens for Canon EF (321954) Description Here comes the long awaited prime lens from the art line, which is the Sigma 85mm F1.4 DG HSM ART. It incorporates 14 lens elements in 12 groups, which is a remarkable optical structure in its class. Features: The Sigma 85mm 1.4 DG HSM Art is the latest addition to the world renowned Sigma Global Vision Line It has equipped newly designed hyper sonic motor (HSM) for nimble AF control, 1.3 times better torque of its predecessor This lens is compatible with Mount converter MC-11 , so Sony E-mount users can also enjoy this lens with it Product Details: Brand: Sigma Focal Length Description: F=1.4 Lens Type: Telephoto Compatible Mountings: Canon EF Camera Lens Description: 11 Product Dimensions: 3.4 x 3.4 x 3.4 inches Item Weight: 2.49 pounds Item model number: 321954 Is Discontinued By Manufacturer: No Date First Available: September 21, 2016 Manufacturer: Sigma Corporation of America Language: English Country of Origin: Japan