The Sigma APO Macro 180mm F2.8 EX DG OS HSM is the world’s first 180mm macro lens that offers a magnification ratio of 1:1 and a large maximum aperture of F2.8. The lens is a successor to the older 180mm F3.5 EX DG macro. The new lens features Sigma’s proprietary Optical Stabilizer (OS) technology and the wide aperture features faster shutter speeds in low light and a narrow depth of field.

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