Sigma APO 70-200mm f/2.8 EX DG OS HSM (Canon) (589954)

Telephoto Zoom Lens Sigma 70-200mm f/2.8 EX DG OS HSM This large aperture telephoto zoom lens, incorporating Sigma's original Optical Stabiliser function, covers focal lengths from 70mm to 200mm and offers a constant aperture of F2.8 over the entire zoom range. The OS function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. It makes shooting easy for many types of photography such as portraits and sports. Two FLD (F Low Dispersion) glass elements, which have performance equal to fluorite glass, and three SLD (Special Low Dispersion) glass elements provide excellent correction of colour aberration. The lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full-time manual focus capability. It is also possible to attach Sigma’s optional APO Tele Converters. Ideal for handheld photography

The lens is equipped with Sigma's own unique OS (Optical Stabiliser) function. This system offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible, making telephoto shooting easy. Mode 1 is ideal for general photography and Mode 2 is designed for panning subjects such as racing cars. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an anti-shake function. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement. * When using the OS function of a lens with a camera which incorporates a stabilizer unit, please turn the camera's stabilizer unit off. * For Nikon and Canon mounts, the Optical Stabiliser (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V.