EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens
The first EF lens with a zoom range from 100mm to 400mm, the EF 100-400mm f/4.5- 5.6L IS USM lens offers high resolution, superb contrast, neutral color balance, and Canon's original built-in Image Stabilizer function. High zoom magnification is achieved by means of a 6-group configuration with 5 movable groups. Fluorite and Super UD glass completely eliminate secondary spectrum for superb color rendition. Autofocusing is fast and silent with Canon's ring USM, and AF speed is further enhanced through an advanced, lightweight rear focusing design that incorporates a floating element for consistent image quality at all focusing distances from 5.9 ft. to infinity. This lens is also equipped with a dual-mode Image Stabilizer suitable for panning as well as stationary subjects. With full-time manual focus, one-touch zooming with a wide grip, and a special ring that permits adjustment of zooming friction, this is a lens that's extremely easy to use, and ideal for a wide variety of applications including nature, wildlife, sports, and documentary photography.
Features
Professional quality telephoto zoom lens for EOS cameras
Built-in dual-mode Image Stabilizer reduces camera shake up to two full shutter speeds compared to hand-held shooting with conventional lens
Fluorite and Ultra-low Dispersion elements suppress chromatic aberrations for outstanding sharpness, contrast and color fidelity
Uses Ultrasonic motor for high-speed autofocus with full-time manual override
Tripod collar, lens hood and case supplied as standard accessories
Specifications
Focal Length & Maximum Aperture: 100-400mm; 1:4.5-5.6
Lens Construction: 17 elements in 14 groups
Diagonal Angle of View: 24° - 6° 10'
Focus Adjustment: Rear focusing system with USM
Closest Focusing Distance: 1.8m/ 5.9 ft.
Zoom System: Linear extension Type
Filter Size: 77mm
Max. Diameter × Length: 3.6 × 7.4 in / 92 × 189mm
Weight: 3.1 lbs / 1380g
We only sell brand new USA retail Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lenses. This Canon EF lens comes complete with a 1 Year USA Limited Warranty.
Can be shipped to APO/FPO 
