Sigma 17-70mm f/2.8-4 DC Macro OS HSM | C review: Digital Photography Review

The Sigma 17-70mm F2.8-4 DC Macro OS HSM is a premium fast 'normal' zoom for APS-C SLRs, which is designed as an upgrade for photographers who have outgrown the 'kit' zooms typically supplied with camera bodies. It was announced at Photokina as ...

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