Sigma 50-100mm f/1.8 DC HSM Art Lens for Nikon F Combo DealLens Specs:Nikon F Mount/DX Format75-150mm (35mm Equivalent)Aperture Range: f/1.8 to f/16One SLD and Three FLD ElementsWhat's In The Box:Sigma 50-100mm f/1.8 DC HSM Art Lens for Nikon FLCF-82 III 82mm Lens CapRear Cap LCR II for Nikon F Mount LensesLens Hood for 50-100mm f/1.8 DC HSM Art LensLens Case for 50-100mm f/1.8 DC HSM Art LensLimited 1-Year WarrantyLimited 3-Year U.S.A. Warranty ExtensionMore Items Included With Your Purchase:1 x Lens Cap Keeper1 x Camera Backpack1 x Lens Pen1 x Lens Dust Blower1 x Deluxe Lens Cleaning Kit1 x FiberClothSpecial 2 Year Extended Warranty