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This large aperture telephoto zoom lens has a minimum focusing distance of 100cm (39.4 ) throughout the entire zoom range. It is very convenient for close-up photography. This lens uses two ELD (Extraordinary Low Dispersion) glasses and two SLD (Special Low Dispersion) glasses for utmost correction against chromatic aberrations. This lens super multilayer lens coating reduces flare and ghost, which is a common problem with digital cameras. It incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF. The design incorporates inner focusing and inner zooming systems. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling. When this lens is used with the 1.4x EX DG APO or 2x EX DG APO Tele Converters (optional), it becomes a 98-280mm f/4 AF telephoto zoom lens or a 140-400mm f/5.6 AF telephoto zoom lens respectively. Features: Minimum focusing distance of 100cm, maximum magnification of 1:3.5. The super multi layer lens coating and lens design reduce flare and ghost. ELD and SLD lenses for correction of aberrations. HSM ensures a quiet and high-speed AF Specifications: Focal Length: 70-200mm Minimum Aperture: f/22 Lens Construction: 18 Elements in 15 Groups Angle of View: 34.3 - 12.3deg. Number of Diaphragm Blades: 9 Blades Minimum Focusing Distance: 100cm/39.4 Maximum Magnification: 1:3.5 Filter Size: 77mm Dimensions: Diameter 86.6mm X Length 184.4mm (3.4 x 7.3 ) Weight: 1,380g/48.7 oz.