Tamron AF017S-700 Autofocus 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Konica Minolta and Sony Digital SLR Cameras 70-300mm macro lens with f/4-5.6 maximum aperture for digital or 35mm cameras Easy-to-use macro switch lets you alternate between 180mm and 300mm focal lengths Minimum focus distance of 59 inches from subject (normal) or 37.4 inches (macro) 9-blade circular diaphragm provides beautiful soft-focus imagery; 62mm filter diameter Measures 3 inches in diameter and 4.6 inches long; weighs 15.3 ounces