Ideal for Canon EOS (SLR) Digital Cameras, the EF 70-200 mm f/2.8L USM Telephoto Zoom Lens is specifically designed for photography enthusiasts and professionals. This light-weight lens combines functionality and compactness with an f/2.8 maximum aperture to deliver high-performance. The lens has four UD-glass elements to correct chromatic aberrations. With closest focusing distances of 4.9 ft, this zoom lens is compatible with the EF Extenders 1.4x II and 2x II. Lens System: Zoom lens Intended For: 35mm SLR, digital SLR Mounting Type: Canon EF Lens Aperture: F/2.8 Focal Length: 70 mm - 200 mm Optical Zoom: 2.9 x Min Focus Distance: 5 ft Focus Adjustment: Automatic, manual Lens Construction: 15 groups / 18 elements Special Functions: Zoom Filter Size: 77 mm Length: 7.6 in Weight: 2.87 lbs Localization: English Length: 7.6 in Diameter: 3.3 in Weight: 2.87 lbs Color: White Localization: English Type: Zoom lens Special Functions: Zoom Intended For: 35mm SLR, digital SLR Focal Length: 70 mm - 200 mm Lens Aperture: F/2.8 Optical Zoom: 2.9 x Magnification: 0.16 Min Focus Distance: 5 ft Focus Adjustment: Automatic, manual Zoom Adjustment: Manual Max View Angle: 34 degrees Min View Angle: 12 degrees Lens Construction: 15 groups / 18 elements Filter Size: 77 mm Diaphragm Blades: 8 Lens Coating: Multicoated Mounting Type: Canon EF Features: UD glass, internal focusing system, Ultrasonic Motor (USM), full-time manual focusing, rear focusing system Included Accessories: Lens hood, soft case, dust cap, lens cap