Canon EF 400mm f/2.8L IS USM Lens

Canon EF 400mm f/2.8L IS USM Lens The Canon EF 400mm f/2.8L IS USM is one of the most revered lenses in the Canon L series range. The Canon EF 400mm f/2.8L IS USM's excellent telephoto capabilities along with the incorporation of a large aperture, Canon's Image Stabilizer technology and a USM motor, makes the Canon EF 400mm ideal for live action photography. Features Image Stabilizer technology to reduce the effect of hand held movement, with 2 modes for panning and static shooting Ring Type USM for high speed, silent autofocus Fluorite and 2 UD optical elements deliver superior optical performance The lens of choice for sports and wildlife photographers Super telephoto L-series lens with an Image Stabilizer for use in track and field sports as well as low-light nature and wildlife photography. The fluorite element and two UD-glass elements result in high resolution and high contrast. The ring USM and an improved AF drive algorithm make the AF speed the fastest in the world when used with the EOS-1v and EOS-3. This lens has the same AF stop and focus preset features as the EF 300mm f/2.8L IS USM. Specifications Focal Length & Maximum Aperture: 400mm 1:2.8 Lens Construction: 17 elements in 13 groups Diagonal Angle of View: 6º 10' Focus Adjustment: Inner focusing system with USM Closest Focusing Distance: 3m / 9.8 ft. Filter Size: 52mm Drop-In Max. Diameter x Length, Weight: 163.0 x 349.0mm, 5,370g Magnification with Extension Tube EF 12: 0.19x - 0.03x Magnification with Extension Tube EF 25: 0.23x - 0.06x Focal Length with Extender EF 1.4x II / EF 2x II: 560mm f/4.0 / 800mm f/5.6