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Complementing the optics is an Intelligent OS system, which minimizes the appearance of camera shake for sharper results when shooting handheld. A Hyper Sonic Motor is also used to provide quick and quiet autofocus performance along with full-time manual focus override. The physical design of the lens also incorporates several seals to guard against dust and moisture, and a water- and oil-repellent coating has been applied to the exposed elements to prevent moisture, fingerprints, or smudges from sticking to the surface.
Additionally, a fixed rotating tripod collar is featured and has a removable Arca-type compatible foot for wide compatibility with a different tripod or monopod heads.
One of the most anticipated lenses from the Sigma Global Vision line, the Sigma 70-200mm f/2.8 DG OS HSM Sports is the new flagship large-aperture telephoto zoom lens that meets the most stringent needs of professional photographers. Robust yet lightweight, the lens' magnesium body ensures high mobility and its dust- and splash-proof structure together with the water- and oil-repellent coating on the front element ensure safe use even in the most challenging shooting conditions. It also incorporates Intelligent OS with an acceleration sensor and the latest algorithm capable of panning in all directions.
The lens' optical design, incorporating 10 exclusive low-dispersion glass elements, allows for extremely high resolution, from the centre to the corners. By optimising spherical aberration, a smooth and natural bokeh effect is achieved when using the Sigma 70-200mm f/2.8 DG OS HSM Sports for portrait photography. The versatility of this lens is demonstrated in various customisation options via an AF Function button either through the camera body or Sigma USB Dock. The newest f/2.8 large-aperture zoom lens from Sigma comes in Sigma, Canon and Nikon mounts.