The Sigma 105mm 2.8 EX DG is a macro lens produced by Sigma Corporation. The lens has six different variates, fitting on the Sigma SA mount, Canon EF mount, Four Thirds System, Pentax K mount, Minolta A-mount, and the Nikon F-mount.105mm F2.8 EX DG Macro - Macro Lenses - SigmaPhoto.com High performance medium telephoto macro lens optimized for digital cameras. MACRO 105mm F2.8 EX DG - SIGMA CORPORATION

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