Sigma 35mm f/1.4 Art DG HSM Lens with USB Dock + 3 Filters + Sling Strap + Pouch + Kit for Nikon Digital SLR Cameras Type: Fixed Length Lens Focal Length: 35 mm Camera Mount: Nikon F Aperture: Maximum: f/1.4 Minimum: f/16 Compatibility: Nikon Diameter: 67 mm Focus Type: Auto Focus Filter thread (Diameter): 67 mm