Sigma 70-200mm f/2.8 EX DG APO OS HSM for Canon 589101 B&H Photo

Sigma's New APO 70-200mm F2.8 EX DG OS HSM is the second generation of this large aperture telephoto zoom lens now incorporating Sigma's Optical Stabilization (OS) anti-shake system. It uses two sensors inside the lens to detect vertical and horizontal ..

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