Sigma's second lens in its new Contemporary series, the Sigma 17-70mm f/2.8-4 DC Macro OS HSM "C" was announced at the 2012 Photokina and hit the store shelves earlier this year. Its sleek new design also incorporates a complete makeover, inside and outside: it's smaller, lighter, and definitely nicer to look at. But does its performance match its appearance? Click here to read our full review of the Sigma 17-70mm f/2.8-4 DC Macro OS HSM "C".
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