This lens boasts an uncommonly bright f/1.8 aperture, yet is compact (2.4 inches long) and weighs only 10.2 oz. Its two compound aspherical lens eleme

This lens boasts an uncommonly bright f/1.8 aperture, yet is compact (2.4 inches long) and weighs only 10.2 oz. Its two compound aspherical lens elements and floating focus system help eliminate peripheral sagittal flare and correct image surface curvature found in close-up photography. Available for autofocus Sigma, Canon, Minolta, Nikon(D) and Pentax. Comes with hood.