An everyday utility zoom, with image stabilization, and 1:2.2 magnification for close-ups, it weighs less than most f/2.8 lenses.
Standout Spec: Image stabilization: Our test showed up to 4 extra stops of handholdability.
Lens Test: Sigma 17-70mm f/2.8-4 DC OS Macro HSM AF
Pentax 17–70mm f/4 DA AL SDM
Tamron 17-50mm f/2.8 XR DI II VC
Canon EF 17-40mm f/4L USM
Canon EF-S 17-55mm f/2.8 IS USM
Canon EOS Rebel T2i
Canon EOS 7D