Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens for Sony Digital SLR Cameras Model (A001S) 70-200mm focal length 105-300mm equivalent focal length on APS-C cameras, 112-320mm equivalent focal length on Canon APS-C cameras F2.8 constant maximum aperture; F32 minimum Micromotor-type AF motor without full-time manual focusing 77mm filters 0.95m/37.40" minimum focus Available in Canon EF, Pentax KAF, Sony Alpha, Nikon F (FX) mounts The new SP AF70-200mm F/2.8 zoom lens Excellent macro magnification of 1:3.1 Includes case and lens hood Removable lightweight Tripod Holder Manufacturers Warranty 6 year