Sigma 50-100mm f1.8 DC HSM Art Lens for Canon for nikon

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PRODUCT HIGHLIGHTS:

Canon EF Mount/APS-C Format

80-160mm (35mm Equivalent)

Aperture Range: f/1.8 to f/16

One SLD and Three FLD Elements

One High-Refractive Index Element

Super Multi-Layer Coating

Hyper Sonic AF Motor

Internal Zoom and Focus; MF Override

Rounded 9-Blade Polycarbonate Diaphragm

Fixed, Rotating Tripod Collar

Pairing a versatile range of telephoto focal lengths with a fast constant maximum aperture, this 50-100mm f/1.8 DC HSM Art Lens from Sigma is designed for APS-C-format Canon EF-mount DSLRs, and provides an 80-160mm equivalent focal length range. The bright constant maximum aperture offers consistent low-light performance throughout the zoom range and also affords greater control over focus placement for shallow depth of field and selective focus applications. Complementing the versatile telephoto range is a sophisticated optical design that incorporates three F Low Dispersion elements, one Special Low Dispersion element, and one high-refractive index, high-dispersion glass element. This combination of low dispersion designs works to noticeably reduce chromatic aberrations and color fringing throughout the zoom range, as well as deliver a high degree of contrast and clarity.