The Sigma 24-70mm F 2.8 DG HSM OS Art is a premium workhorse zoom lens designed for the latest high megapixel DSLRs. A constant aperture of 2.8 through the zoom range makes this a highly versatile tool and a brand new Optical Stabilization (OS) system helps compensate for camera shake. Though a common focal length the Sigma 24-70mm Art brings a new level of usability and durability featuring a rugged metal barrel and an emphasis on image quality. Building off the experience from the 12-24mm Art the aspherical elements used in the 24-70mm f/ 2.8 OS Art undergo a highly precise level of polishing producing elements thicker in the center than on the edges.
This process creates stunning image quality and beautiful circular bokeh. DG - DG for DigitalSigma's DG lenses are specifically designed to deliver the ultimate level of performance on full frame digital SLRs. Sigma DGs also maximize the abilities of 35mm SLR cameras and APS-C size DSLRs. Thanks to a complete and comprehensive approach to the correction of chromatic aberrations; you will experience incredible image clarity and smoothness. Specific attention was paid to helping eliminate color fringing often caused by lateral chromatic aberration a problem that is magnified at high resolution in digital photography. DG lenses provide exceptionally high contrast along with subtle gradations in tone and color.
The super Multi-Layer coating along with Sigma's optimized optical design work reduces reflections between the image sensor and the lens surfaces. The large image circles of DG lenses mean there will always be enough peripheral illumination to avoid vignetting.
Bundle Includes: Sigma 24-70mm f/ 2.8 DG OS HSM ART Lens for Canon EFSigma USB Dock for Canon LensesCamera System Gadget Bag with Accessory and Cleaning Kit2 x 64GB Extreme PRO 200MB/s SDXC UHS-I Memory Card