Tamron AF 24-135mm f/3.5-5.6 SP AD Aspherical (IF) Lens for Nikon SLR Cameras Covers 24mm real wide-angle through 135mm telephoto Internal focusing system maintains overall length during focusing Low-dispersion glass compensates for chromatic aberration Hybrid aspherical elements for compactness and image quality Mount compatible with Nikon AF-D SLR cameras