Sigma 70-200 f2.8 Pro zoom lens.

This is the later MKII version which has improved optics.
This large aperture zoom lens has improved optical performance and retains close-up ability with a minimum focusing distance of 100cm/39.4in and maximum magnification ration of 1:3.5.

This lens is suitable for taking all type of subjects such as portraits landscape and close-up pictures. 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.

The super multi-layer coating reduces flare and ghosting. This lens incorporates HSM (Hyper Sonic Motor) which ensures a quiet and high-speed AF as well as full-time manual focusing capability.

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.

Specifications -

Lens Construction - 18 Elements in 15 Groups
Angle of View - 34.3 - 12.3 degrees
Number of Diaphragm Blades - 9 Blades
Minimum Aperture - F22
Minimum Focusing Distance - 100cm/39.4 in.
Maximum Magnification - 1:3.5
Filter Size - Diameter 77mm
Filter Size - Petal-type Hood
Dimensions - Diameter 86.5mm X Length 184.4mm 3.4 in. X 7.3 in.
Weight - 1370g
Corresponding AF Mounts - CANON,NIKON