Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras
Incorporating Canon's second-generation Image Stabilization technology, this 70-200mm telephoto zoom responds in as little as 0.5 seconds while providing up to three stops of correction for camera shake. As a result, you can easily capture the far-off action of fast-paced sports or zoom in for an intimate portrait with a blurred background. The lens's autofocus (AF) system, meanwhile, has been refined for better response time and tracking speed. And photographers will love the new eight-blade circular aperture, which offers a more pleasing out-of-focus image. Constructed to pro standards, the EF 70-200mm lens is highly dust- and moisture-resistant and carries a one-year warranty.Focal length: 70-200mmMaximum aperture: 1:2.8Lens construction: 23 elements in 18 groupsDiagonal angle of view: 34 to 12 degreesFocus adjustment: Inner focusing system with USMClosest focusing distance: 4.3 feetZoom system: Rotating typeFilter size: 77mmDimensions: 3.4 inches in diameter, 7.8 inches longWeight: 3.24 pounds