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楽天での商品説明(Mars shop)

Construction:17 Elements in 13 GroupsAngle of view:72.4°-27.9°F stop range:Minimum Aperture :F22Closest Focusing Distance:28 cm / 11 inFilter Size:77mmMaximum Magnification:1:5Dimensions (Length x Diameter):3.6 x 3.3'' / 91.8 x 83.5mm・For use with smaller chip APS-c or 4/3 digital cameras only・Offers Sigma's OS System (Optical Stabilization) allowing handheld photography even in low-light situation・HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus・FLD glass elements with performance equal to fluorite glass for compensate for color aberration・Ultra compact with overall length of just 3.6''Sigma's new 17-50mm F2.8 EX DC HSM large-aperture standard zoom lens covers a focal length from 17mm wide angle and offers a large aperture of F2.8 throughout the entire zoom range making it ideal for many types of photography especially portraiture and landscapes. HSM provides fast and quiet AF. Sigma's own FLD glass elements which have performance equal to fluorite along with two glass mold and one hybrid aspherical lens provide excellent correction for all types of aberrations. The Super Multi-Layer coating reduces flare and ghosting. This lens boasts superior peripheral brightness and provides sharp high contrast images even atthe maximum apertures. With a minimum focusing distance of 11 inches throughout the entire zoom range and a magnification ratio of 1:5. When you need to stand ready for any photo opportunity you need a fast aperture so you can shoot in low existing light or at maximum range with a flash. This Sigma lens is perfect. With its compact size and light weight it's a necessary addition to your camera bag Please Note Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.