Sigma 24-70mm f2.8 DG OS HSM Art lens for Canon EOS

The ultimate workhorse lens for many professional photographers, the SIGMA 24-70mm is a highly versatile optic for DSLRs that can be used for almost any type of photography, including landscapes, portraits, commercial, weddings, travel and street.

Its constant F2.8 aperture produces both a shallow depth-of-field and fast shutter speeds in low light conditions, yielding plenty of creative opportunity. The lens has Sigma’s advanced Optical Stabiliser build in to help reduce the risk of camera shake, ideal for lower light situations such as weddings.

• Three SLD Elements
• Four Aspherical Elements
• Super Multi-Layer Coating
• Hyper Sonic Motor AF System
• OS Image Stabilization
• Rounded 9-Blade Diaphragm

Optically the 24-70mm is exceptional, producing images that are pin-sharp across the frame and free from unwanted aberrations at all aperture settings.

A capable optic in low light

Owing to its constant F2.8 aperture across the whole zoom range, the 24-70mm is a superb lens for low-light conditions. It is a very popular option with wedding photographers, who need to be able to shoot hand-hand indoors, and often without much available light.

The wide aperture also means a shallow depth-of-field that helps to separate the subject from the foreground or background. At the telephoto end, the 24-70mm is perfect for portraits for this reason.

Close focusing ability

With a maximum magnification ratio of 1:4.8, the 24-70mm is capable of shooting detailed close-ups of flowers, insects and food. The lens’ bokeh is smooth and attractive, ensuring it doesn’t distract from the in-focus subject.

Professional feature-set

A range of controls on the lens include an AF/MF switch with a Manual Focus Override option that allows tweaking of focus manually even when using AF.

The lens has an Optical Stabilizer switch that helps to reduce camera shake when shooting in low light conditions. This provides a four-stop advantage, allowing photographers to achieve blur-free hand-held images at approximately 1/8 sec.

A powerful HSM motor ensures fast, accurate and quiet AF and excellent AF tracking capability.

High-performance optics

The SIGMA 24-70mm produces images with outstanding optical quality, with excellent rendering of detail across the whole frame even wide open at F2.8.

The lens has an advanced optical design made up of 19 elements in 14 groups, including 4 aspherical elements and 3 SLD elements. This ensures razor-sharp results and helps to eliminate chromatic aberration, flare, distortion and vignetting.

Advanced optical coatings reduce flare and ghosting when working in bright direct sunlight, creating high-contrast images with excellent colour saturation and strong blacks.

Outstanding build quality

The exceptional build quality of the 24-70mm F2.8 DG OS HSM is exactly as you’d expect from an Art-line lens, both in the materials used, the overall ergonomics and the quality of craftsmanship.

The exterior barrel is made of a polycarbonate called Thermally Stable Composite (TSC). Not only is this very strong and light, but it has a similar thermal expansion rate to aluminium. This ensures that the interior aluminium parts and the exterior TSC parts behave in a consistent way as temperatures change.

The focus and zoom rings has sharply-ribbed rubberised covers for easier operation, and the action on both is very smooth for more precise control.

To reduce flare and ghosting in bright sun, and to help protect the front element from damage if dropped, the lens has a robust, removable petal-type lens hood.

The durable brass mount is surrounded by a rubber seal to help keep out dust and moisture.

Made in Japan

All Sigma cameras and lenses are designed, manufactured and assembled at their sole factory at Aizu in Japan. This domestic production model is unusual in today’s industry, with most imaging companies opting to outsource to other countries to reduce costs. But SIGMA believes that keeping virtually all manufacturing, processing and assembly in Aizu is essential for creating innovative, carefully thought-out and impeccably constructed products that meet the high standards demanded by professional photographers and film-makers around the world.