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Sigma 70-200mm f/2.8 EX DG APO HSM Large Aperture Macro Zoom Lens for Canon Digital SLR Cameras

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Product Description The telephoto zoom lens 70-200mm f/2.8 EX DG MACRO HSM has a large constant maximum aperture of f2.8 through the zoom range and it is optimized for digital SLR cameras.This large aperture telephoto zoom lens has a minimum focusing distance of 100cm (39.4") throughout the entire zoom range, making it very convenient for close-up photography. It maintains a greater working distance that enables you to capture the small animals and insects without disturbing them. This lens uses two ELD (Extraordinary Low Dispersion) glass elements and two SLD (Special Low Dispersion) elements for utmost correction against chromatic aberrations. High image quality is assured throughout the entire zoom range. The HSM models provide quiet high-speed AF function, as well as full time manual focus capability. This lens incorporates an inner focusing system, which eliminates front lens rotation, allowing the use of a Petal-type Hood and more convenient to use of circular polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use.