Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens + Deluxe Accessory Kit & 5 Year Extended Warranty

A new and affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by the use of three aspherical lens elements, in addition to a Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches (0.28m), and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f/4 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Finally, it offers weather-resistant construction similar to other high-end L-series lenses. +PLUS+ DELUXE ACCESSORY KIT: All the necessary must-have lens filters in one convenient and affordable package. UV filter: To protect eyes and equipment from dangerous ultra-violet rays. Sharpens contrast. Performs as overall protection against dust, elements, scratching and impact that otherwise would land first on a far more valuable lens. Polarizing filter: Reduces amount of light entering camera. Cuts glare. Allows shooting through glass or around water. Eliminates overexposure when aperture cannot be stopped down further. FD filter: Corrects color when shooting under fluorescent lighting, avoiding greenish effect. Gives natural color to your images. + Large zipper closing foam padded lens case. Quick attachment to any belt or the Modular Accessories System.The Modular Accessory System (M.A.S.) offers additional accessories that quickly attach to any belt or Tamrac products that have the M.A.S. quick-attachment system. + n Cap Keeper Front Lens Cap Leash so you wont lose the lens cap + Microstar Advanced Micro-Fiber Cleaning Cloth + 5 Year Extended Warranty.