Dell : Tamron USA, Inc. AF 18-250 mm f/3.5-6.3 Di II LD (IF) Aspherical Zoom Lens for Nikon Digital SLR Cameras : Digital Cameras & Camcorders : Home & Home Office Dell : Tamron USA, Inc. AF 18-250 mm f/3.5-6.3 Di II LD (IF) Aspherical Zoom Lens for Nikon Digital SLR Cameras : Digital Cameras & Camcorders : Home & Home Office