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Is the Sigma 70-200mm f/2.8 EX DG HSM II Macro Lens right for you? Learn all you need to know in
Sigma 70-200mm f/2.8 II EX DG APO Macro HSM AF Lens 579205 B&H
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105-300mm equivalent focal length on APS-C cameras, 140-400mm equivalent focal length on Four Thirds / Micro Four Thirds cameras, 112-320mm equivalent
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Sigma APO 70-200mm F2.8 EX DG OS HSM review: The right compromises for a high-end telephoto - CNET