Large aperture ultra telephoto zoom lens offers a large aperture of F2.8 at the 500mm focal length and F5.6 at the 1000mm focal length.
This is the first large-aperture ultra telephoto zoom lens that has an F2.8 aperture at the 500mm focal length. With its specially designed attachment mounted, the lens becomes a 400-1000mm F5.6 ultra-telephoto zoom lens capable of auto-focus shooting. It gives the photographer brand new powers of expression in all kinds of photography such as sports, portrait and nature photography. ELD (Extraordinary Low Dispersion) and SLD (Special Low Dispersion) glass provide excellent correction for all types of aberrations and the superior image quality throughout the entire zoom range. Sigma’s own revolving filter ring mechanism makes it easy to use a circular polarizing filter.
* For Sigma SA mount * This lens cannot be used with film SLR cameras with the exception of the Nikon F6 and Canon EOS-1v. * The angle of view varies depending on which camera the lens is mounted on.