Conveniently compact and versatile, the Sigma 17-70 mm f/2.8-4 DC HSM OS Standard Zoom Lens with Macro is ideal for the travelling photographer. Versatile shooting With a wide zoom range, the high performance 17-70 mm offers versatile shooting options and is ideal for travel, landscape, portraiture and sports. Compact and lightweight, this wide-angle zoom matches perfectly with the smaller bodies of Canon APS-C DSLRs. A low aperture of f/2.8 makes the 17-70 mm suitable for shooting subjects at extremely close range and in low light conditions. With seven rounded blades making up the diaphragm you can get creative by creating a smooth bokeh in the background. Get closer to your subject A dedicated macro function and minimum focusing distance of 22 cm makes the 17-70 mm ideal for close-up photography. A Hyper Sonic Motor (HSM) ensures quiet focusing, ideal when capturing small insects. For sharp, blur-free images, the 17-70 mm incorporates Sigma's Optical Stabiliser (OS) which offers effective correction of approximately 4 stops to counter camera shake even during macro photography. Superior quality The 17-70 mm incorporates two “F” Low Dispersion glass elements to eliminate chromatic aberration of magnification and axial chromatic aberration for excellent image quality throughout the entire zoom range. Finished with a Super Multi-Layer Coating to reduce flare and ghosting, the 17-70 mm delivers sharp and high contrast results even in backlit conditions. The included tulip shaped lens hood also helps assist with avoiding flare. Sigma USB Dock compatible The 17-70 mm is compatible with the Sigma USB Dock (sold separately), which enables you to update the lens firmware and adjust parameters such as focus. The compact and functional Sigma 17-70 mm f/2.8-4 DC HSM OS Standard Zoom Lens with Macro offers great versatility when shooting.