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), Macro Focus Range : 1.50 m / 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 / Suitable for Nature/concert/potrait and close up/product photography. Measures 3 inches in diameter and 5.6 inches long; weighs 22.2 ounces