Sigma 50-150mm F/2.8 APO EX DC HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras 50-150 mm Digital Zoom Telephoto Lens for Nikon Digital SLR Cameras Lens provides a high level of optical performance Ideal for Digital SLR Cameras Works with Nikon Cameras Lightweight Design, Large Aperture, Compact Style Size: 3 x 3 x 5.3"; Weight: 1.7 Lb.