This large aperture zoom lens has improved optical performance and retains close-up ability with a minimum focusing distance of 100cm (39.4") and maximum magnification ratio of 1:3.5. SLD (Special Low Dispersion) and ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all types of aberrations. The super multi-layer 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 as full-time manual focusing capability. It is also possible to attach the optional APO Tele Converters.

Improved optical performance
It has improved optical performance and retains close-up ability with a minimum focusing distance of 100cm (39.4”) and maximum magnification ratio of 1:3.5. This lens is suitable for taking all types of subjects such as portraits, landscapes, and close-up pictures.

Reduced Ghosting and Flare
The super multi-layer coating reduces flare and ghosting. It produces superior optical performance throughout the entire focusing distance.

SLD and ELD glass
Two SLD （Special Low Dispersion） and three ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range.

HSM (Hyper Sonic Motor)
This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as full-time manual focus override by rotation of the focus ring.

Inner focusing and inner zooming system
The lens design incorporates an inner focusing and inner zooming systems. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling. The inner focusing system also eliminates front lens rotation, making the lens particularly suitable for using the supplied petal-type lens hood and circular polarizing filters. A removable tripod collar (TS-21) is included as a standard component.

APO Tele-Converter (Optional)
The addition of the optical 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 98-280mm F4 AF telephoto zoom lens or a 140-400mm F5.6 AF telephoto zoom lens respectively. Specially designed to provide optimum performance with the master lenses.

OPTIONAL ACCESSORIES
-SIGMA DG UV 77mm : 00-85126-92375-4
-SIGMA DG WIDE CIRCULAR PL 77mm : 00-85126-92386-0
-LENS HOOD LH850-01 : 00-85126-92419-5
-TS-21 : 00-85126-56602-9
-TS-41 : 00-85126-52902-4
-APO TELE CONVERTER 1.4x EX DG
-APO TELE CONVERTER 2x EX DG