• 70-200mm telephoto zoom lens with f/4 maximum aperture for Canon digital SLR cameras.
• Fluorite UD lens elements produce excellent optical performance in resolution and contrast, Closest focusing distance : 3.94 feet, Focal length: 70-200mm.
• Ring-type ultra-sonic monitor (USM) for quick and quiet autofocusing; lightweight construction.
• Image Stabilizer provides up to 4 stops of shake correction; water- and dust-proof construction.
• Measures 3 inches in diameter and 6.8 inches long; Weight : 1.675 pounds (lens only) ; 1-year warranty.

Product Description ------------------- Canon's EF 70-200mm f/4L IS USM is a lightweight, compact L Series telephoto zoom lens with Image Stabilizer. The optical Image Stabilization in the new EF 70-200mm f/4L IS USM lens provides up to an incredible four stops of shake correction-a first for Canon IS lenses. The use of fluorite UD lens elements provides excellent optical performance in terms of resolution and contrast. These features, together with its water-and dust-proof construction, provide both the performance and portability to meet user demands.What’s in the box: Canon EF 70-200mm f/4L IS USM Lens, E-67U 67mm Snap-On Lens Cap, Lens Dust Cap E (Rear), ET-74 Lens Hood, LP1224 Lens Case and 1-Year Warranty. Filter size: 67 mm, Closest Focusing Distance: 3.94 feet. From the Manufacturer --------------------- Capture the far-off action of fast-paced sports or zoom in for an portrait with the Canon EF 70-200mm telephoto zoom lens. The L-series lens offers an Image Stabilizer that provides up to four stops of shake correction--a first for Canon IS lenses. The use of fluorite UD lens elements, meanwhile, produces an excellent optical performance in terms of resolution and contrast. Add in a sturdy housing with water- and dust-proof construction and you have a lens that's both portable and high performing. Other details include an f/4 maximum aperture, a ring-type ultra-sonic monitor (USM) that enables quick and quiet autofocusing, compatibility with circular polarizing filters, and a lightweight body. The lens carries a one-year warranty. * Focal length: 70-200mm * Maximum aperture: f/4 * Lens construction: 20 elements in 15 groups * Diagonal angle of view: 34 to 12 degrees (with full-frame cameras) * Focus adjustment: AF with full-time manual focus * Closest focusing distance: 3.94 feet * Zoom system: 7-group helical zoom (72-degree rotational angle) * Filter size: 67mm * Dimensions: 3 inches in diameter, 6.8 inches long * Weight: 26.8 ounces High-performance, L-series telephoto zoom lens combining light weight and compactness with an f4 maximum aperture. Inner focusing and the ring USM enable quick and quiet autofocusing. Also, a circular polarizing filter can be attached and used without difficulty because the front lens element does not rotate during focusing. The tripod collar (sold separately) is the same one used with the EF 300mm f4L USM.