Sigma 24-35mm f/2 ART DG HSM Zoom Lens with USB Dock + Filter + Sling Strap + Diffusers + Kit for Nikon Digital SLR Cameras Type: Wide Angle Lens Focal Length: 35 mm Camera Mount: Nikon F Compatibility: Nikon Diameter: 82 mm Focus Type: Auto Focus Filter thread (Diameter): 82 mm Weight: 3.75