- Incorporating Sigma’s original OS (Optical Stabilizer) function.
- An ultra-telephoto zoom lens covers a telephoto range up to 500mm and allows short perspective.
- Three SLD glass elements and a rear focus system provide optimum image quality throughout the entire zoom range.
- Super multi-layer coating reduces flare and ghosting.
- HSM ensures quiet and high-speed autofocus.
This ultra-telephoto zoom lens covers a telephoto range up to 500mm and allows photographers to bring the subject close and short perspective. Sigma’s original OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower. It is ideal for sports, wildlife and landscape photography with handheld shooting. Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration. This lens is equipped with a rear focus system that minimizes fluctuation of aberration caused by focusing.
The super multi-layer lens coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well asfull-time manual focusing capability.
The addition of the (optional) 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 210-700mm F7-9 MF ultra-telephoto zoom lens or a 300-1000mm F10-13 MF ultra-telephoto zoom lens respectively. A removable tripod socket (TS-31) is included as a standard component.
Keeping the zoom range down to 3.3x, Sigma have avoided the complicated compromises that go into, for example, their 50-500mm lens, and this has proved valuable in the image quality department. Contrast, although not stunning, is certainly good and, as has been mentioned, is certainly helpful to modern focusing systems. No noticeable distortions are recorded, not that telephoto lenses normally have a problem with this aspect.