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Black cylindrical zoom lens with wide barrel and 82mm filter thread

SIGMA

SIGMA 24-70mm f/2.8 DG OS HSM Art Canon EF 576954 camera lens

SKU CH-HDMX-21Q6C

A versatile zoom for Canon EF covering 24-70mm at a constant f/2.8 with optical stabilisation and weather-resistant construction

  • Part type or number576954
  • Diameter3.46 in (8.79 cm)
  • Focus systemAuto Focus
  • Lens focal length24-70 mm F2.8
  • Lens aperture2.8 f stop
  • Lens mountCanon ef
  • Constant f/2.8 aperture enables low-light shooting across the 24-70mm zoom range
  • 19 elements in 14 groups with three SLD and four aspherical lenses reduce aberrations
  • Weather-sealed mount and water-repellent front coating protect against dust and splashes
  • 82 mm filter thread accepts standard circular filters for creative control
  • 1° wide angle of view suits landscape and architectural photography

SIGMA 24-70mm f/2.8 DG OS HSM Art Lens for Canon EF

The SIGMA 24-70mm f/2.8 DG OS HSM Art is a professional zoom lens built for Canon EF-mount cameras. It serves photographers who need a versatile focal range with a constant bright aperture for creative work. The lens is not suited for buyers who require a lighter walk-around optic or those using mirrorless mounts without an adapter.

Constant f/2.8 maximum aperture across 24-70mm

The constant f/2.8 aperture is the specification that determines whether this lens matches the user's needs. It maintains consistent exposure and depth-of-field control throughout the zoom range from 24mm to 70mm. The optical design uses 19 elements in 14 groups, including specialised elements to reduce aberrations.

82mm filter thread and weather-resistant mount

Installation is straightforward: align the red mount index, twist until it clicks, and set the camera to autofocus if desired. The 82mm front thread accepts standard filters, and a rubber seal at the mount provides dust and splash resistance. A common issue is forgetting to switch the focus-mode selector on the lens barrel when changing between auto and manual focus.

How it compares

Measured against everything we stock in Interchangeable Camera Lenses, at today’s prices. Recalculated every night.

Price $1,073.99
Pricier than about 81% of the 2,570 comparable items (median $546.49).

Specifications

Product
Brand nameSIGMA
Model name576954
Part number576954
Part type or number576954
Product type19 Elements in 14 Groups
Product colorBlack
Audio & video
Focus systemAuto Focus
Lens focal length24-70 mm F2.8
Lens aperture2.8 f stop
Lens mountCanon ef
Viewing angle84.1 degrees
Auto-focusAuto Focus
Size & build
Diameter3.46 in (8.79 cm)
Filter thread size82 mm
Product dimensions6.93 in × 4.76 in × 4.72 in
Product weight2 lb (0.91 kg)
Compatibility
Compatible withCanon EF

Questions about this item

How does the constant f/2.8 aperture behave across the 24-70mm zoom range on a Canon EF body?

The f/2.8 maximum aperture stays constant from 24mm to 70mm, so exposure settings remain unchanged while zooming and depth-of-field control is consistent throughout the range.

What does the Canon EF mount imply for communication and physical fit on current EOS cameras?

The EF mount provides full electronic autofocus and aperture control on any Canon EOS DSLR; on EOS R mirrorless bodies it requires an EF-EOS R adapter for the same functionality.

Will the 82mm filter thread and 6.93 x 4.76 x 4.72 inch barrel fit my existing filter system and lens pouch?

The front thread accepts 82mm filters, and the barrel measures 6.93 inches long by 4.76 inches wide by 4.72 inches deep, so check those dimensions against your pouch and filter holder clearance.

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