The Sigma 180mm f/2.8 APO Macro EX DG OS HSM Lens (for Nikon) is a high-speed macro lens offering a magnification ratio of 1:1 and a focal length of 180mm. This lens is compatible with the Nikon F mount for use on full-frame and APS-C DSLRs. This lens incorporates 3 FLD glass elements for color aberration corrections, as well as a floating inner focusing system to reduce other aberrations such as field curvature and distortion, resulting in accurate scene rendition from 1:1 magnification to infinity.

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