Canon EF 70-300mm f/4-5.6 is USM Lens for Canon EOS SLR Cameras International Version (No Warranty) 70-300mm telephoto zoom lens with f/4.5-5.6 maximum aperture for Canon EOS SLR cameras 3-stop Image Stabilizer for reducing camera shake; ring-type ultra-sonic monitor (USM) Electro-magnetic diaphragm (EMD) helps create attractive background at large apertures Super Spectra lens coating and lens element shaping suppresses flare and ghosting,Filter Thread: 58 mm Measures 3 inches in diameter and 5.6 inches long; weighs 22.2 ounces