Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras w/ 77mm Multicoated UV Protective Filter, Deluxe Bag, Lens Cap Keeper, Memory Card Wallet, Card Reader, Professional Tripod Canon AUTHORIZED DEALER - Includes Full Canon USA WARRANTY Canon EF 17-40mm F/4 L USM Lens 17-40mm ultra-wide-angle zoom lens with f/4 maximum aperture for Canon SLR cameras 3 aspherical lens elements and super UD glass element create superior optics in all conditions INCLUDED IN THE BOX: EF 17-40mm F/4 L USM Lens | LP1319 Lens Pouch Case | EW-83-E Lens Hood | Canon 1-Year USA Warranty BEACH CAMERA EXCLUSIVE BUNDLE INCLUDES: EF 17-40mm F/4 L USM Lens w/ 1-Year USA Warranty |77mm Multicoated UV Protective Filter|Large Gadget Bag for SLR Digital Cameras|Microfiber Cloth|Tri-Fold Memory Card Wallet|Hi-Speed SD and Micro SD USB 2.0 Card Reader|72-Inch Photo/Video Tripod with Case Superb optical performance throughout the zoom range. Fastest AF speed within its class (same as the EF16-35 f/2.8L USM) Highly dust and moisture resistant 28cm minimum focusing distance at all focal lengths Extensive set of high-end features The Auto-focus works silently and quickly thanks to a fast central processing unit with an improved AF algorithm. You can override AF mode with manual focus should you wish. Controlled by an electromagnetic diaphragm, it&#039;s USMcircular aperture can achieve a more attractive appearance to out of focus background areas in a picture. Minimum focusing distance is just 28mm throughout the entire zoom range. The front of the lens does not rotate as you focus. This means, for example, that polarising filters still function effectively as you zoom in and out. At the rear of the lens there&#039;s a drop-in gelatin filter holder. Highly resistant to moisture and dust and ideally suited for use in harsh environments. Canon EF 17-40mm F/4 L USM Lens LP1319 Lens Pouch Case EW-83-E Lens Hood Canon 1-Year USA Protection 77mm Multicoated UV Protective Filter Large Gadget Bag for SLR Digital Cameras Microfiber Cloth Tri-Fold Memory Card Wallet Hi-Speed SD and Micro SD USB 2.0 Card Reader 72-Inch Photo/Video Tripod with Case