Sigma 18-35mm f/1.8 DC HSM I A (Art) Standard Zoom Lens Nikon Fit Sigma 3 Years Lens Warranty - Activated when camera/lens is registered on the Sigma website. https://www.sigma-imaging-uk.com/ SIGMA 18-35mm f/1.8 DC HSM I A (Art) Standard Zoom Lens Nikon Fit Depth: 120 MM Excellent Usability Designed to minimize flare and ghosting Minimum focusing distance of 28cm Hyper Sonic Motor Incorporating Rounded diaphragm Height: 121 MM Width: 78 MM