Sigma 17-70mm f2.8-4 DC Macro OS HSM C Canon review - The Above ‘Standard’ ZoomBy Ben Boswell - Friday March 01 2013 Lens Review
At some point or another nearly every photographer is going to own a ‘standard’ zoom lens. If their camera has an APS-C sensor then it is going to be something like a 17 or 18mm to 55 or 85mm. This Sigma 17-70mm is right in the middle of this range, but that is the only place where it is in the middle. In all other respects it is among the front runners. Of its type the Sigma 17-70 f2.8-4 DC Macro OS HSM C Canon is well priced, well specified and a good performer.