SIGMA 120-300mm F2.8 DG OS HSM Sports Canon

A top-of-the range telephoto lens for users who require uncompromising picture quality combined with high luminosity. It was designed for full-frame cameras, but can work with APS-C models as well. Its variable focal length makes this model really versatile, and although it is classified as a sports lens, it is entirely suitable for nature photography, cars, wildlife, and similar uses. It is equipped with a hypersonic motor (HSM) for quiet and accurate autofocus and an optical image stabiliser (OS), which compensates for camera shake when shooting by hand.

Key Features

• HSM - fast and quiet AF
• DG - suitable for full-frame and APS-C cameras
• OS - optical image stabiliser
• APO - low-dispersion optical SLD glass reduces chromatic aberration
• CONV - can be used with a teleconverter
• IF - lenses can be internally regrouped without changing the physical length of the lens; increased stability when focusing

The design uses two FLD glass elements, whose optical performance is comparable to fluorite except it is also lighter, plus a CLD element for reducing chromatic aberration. The Sport series lenses also offer a high degree of customisation through the Sigma USB dock (sold separately) and are resistant against dust and splashing water.

In the case of any problems with focus (front/back focus), it is necessary to adjust the lens via the Sigma dock station.

Specifications:
Construction: 23 lenses in 18 groups
Angle of view: 20.4°-8.2°
Maximum magnification: 1:8.1
Diaphragm blades: 9
Dimensions: 124.4 x 291mm (diameter x length)
Weight: 3390g
Lens hood: LH1220-01
Tripod collar: TS-51

Compatible Teleconvertors:
TC-1401 (1.4 × APO EX DG)
TC-2001 (2 × APO EX DG)