Sigma 24-70mm f/2.8 DG OS HSM Art Lens Mount:for Canon EF which promotes the ability to

which promotes the ability to design lenses that are both faster and smaller than their SLR equivalents

and Nikon 1 S1

9" at all focal lengths

Weather-sealed design includes rubber gaskets to prevent dust and moisture ingress and the exposed elements have a fluorine coating that repels dirt and oils and is easier to clean

Removable rotating tripod collar offers a stable platform for working with this lens atop a tripod or monopod

Sigma 24-70mm f/2.8 DG OS HSM Art Lens Mount:for Canon EF which promotes the ability toA versatile zoom for everyday shooting, the Sigma 24 70mm f 2. 8 DG OS HSM Lens covers a useful wide angle to portrait length range of focal lengths to suit shooting in a variety of environments. As part of the esteemed Art series of lenses, a sophisticated optical design is used that incorporates three SLD elements and four aspherical elements to reduce chromatic and spherical aberrations, as well as color fringing, distortions, and other anomalies