The essential telephoto lens for professional photography A modern classic: this fast-aperture telephoto zoom lens is a favourite with photographers in virtually every genre. It’s now even better in bright light, and engineered to perform in the most challenging conditions. Enjoy extra creative control The lens’s f/2.8 maximum aperture makes it easy to emphasise pin-sharp subjects against a smooth out-of-focus background. Low light? No problem A 3.5-stop Image Stabilizer guards against camera shake. A fast f/2.8 aperture lets in twice as much light as an f/4 lens Superb image quality Fluorite and UD optics deliver high contrast and excellent resolution. Improved lens coatings combat ghosting and flare. Built to exacting standards Protective seals guard against dust and moisture and fluorine-coated front and rear elements are easy to clean. Fast, near silent autofocus A ring-type USM motor focuses with amazing speed. Make manual adjustments at any time, just by turning the focus ring.