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Sigma 24-70mm f/2.8 DG OS HSM A (Art) Lens for Canon EF-Mount {82}

Model #373723
  • $996.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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Sigma's Art-series answer to the 24-70mm f/2.8 standard zoom

The 24-70mm f/2.8 focal range covers more working ground than almost any other single lens, and Sigma built this one to Art-series optical standards. Nineteen elements in 14 groups include three SLD elements and four aspherical elements, with the asphericals undergoing a precision polishing process that produces elements thicker at the center than the edges. The result is controlled spherical aberration, reduced color fringing, and cleaner images across the full 84.1-to-34.3-degree angle of view. Super Multi-Layer Coating keeps flare and ghosting in check even when shooting toward light sources.

The constant f/2.8 aperture holds through the entire zoom range, so there's no exposure shift when you pull back from 70mm to 24mm mid-shoot. Optical Stabilization handles handheld work when shutter speeds drop, and the HSM autofocus is quick and quiet with full-time manual override available. Filter thread is 82mm, and the metal barrel with brass bayonet mount is built for photographers who put gear through hard use. The lens also adapts to Canon RF and Sony E-mount bodies via the MC-11 converter with full AF and AE retained.

At this optical spec level, with OS built in, this lens holds its own against options that cost considerably more.

Who It's For

Wedding photographers running one body through a full day will lean on the constant f/2.8 for consistent exposure across ceremony, reception, and low-light dancing. Photojournalists and documentary shooters get the OS system for handheld stability when tripods aren't practical. Portrait photographers working at 70mm can use the f/2.8 maximum aperture to separate subjects cleanly at a 37cm minimum focus distance. Canon DSLR shooters who have moved to RF-mount mirrorless but want to keep a proven full-frame zoom in rotation can do so via adapter without losing autofocus or stabilization.

Key Features

  • Constant f/2.8 aperture throughout 24-70mm zoom range
  • Optical Stabilization (OS) for handheld shooting and slower shutter speeds
  • 19 elements in 14 groups with 3 SLD and 4 aspherical elements
  • HSM autofocus with full-time manual override and quiet operation
  • Metal barrel with brass bayonet mount for durability and precision
  • Compatible with Canon RF and Sony E-mount via adapter
  • Super Multi-Layer Coating reduces flare and ghosting
  • 82mm filter thread with protective front-element coating

FAQ

Does the f/2.8 aperture stay constant across the entire 24-70mm range?
Yes. The constant f/2.8 aperture holds from 24mm to 70mm, so exposure doesn't shift when you zoom mid-shoot. This also means consistent depth-of-field control throughout the range.
How does the optical stabilization perform for handheld work?
The OS system compensates for camera shake at slower shutter speeds, letting you shoot handheld in lower light without a tripod. Paired with the HSM autofocus, it's built for working photographers who need speed and reliability.
What makes the aspherical elements in this lens different?
The aspherical elements undergo precision polishing that produces elements thicker at the center than the edges. This process controls spherical aberration and reduces color fringing, delivering cleaner images across the full zoom range.
Can I use this EF-mount lens on my Canon RF mirrorless camera?
Yes, via the Canon EF-to-RF adapter. Full autofocus, auto-exposure, and image stabilization are retained. The MC-11 converter also allows use on Sony E-mount bodies with full AF and AE.
What's the minimum focus distance, and does it change at different focal lengths?
Minimum focus distance is 1.21 feet (37 cm) across the zoom range, so you can focus close whether you're at 24mm or 70mm.
How is the build quality for a standard zoom?
The metal barrel and brass bayonet mount are built for hard use. Thermally stable composite material handles temperature swings, and the HSM motor delivers quiet, fast autofocus with full-time manual override.
What's the filter thread size?
82mm. The front element also has a protective coating to help it hold up in harsh climates.
SpecificationValue
Focal Length24-70mm
Max Aperturef/2.8
Min Aperturef/22
MountCanon EF
StabilizationYes
AF SystemHSM (Hypersonic Motor)
Min Focus Distance1.21 ft (37 cm)
Lens FormatFull Frame
Lens SeriesArt
Filter Thread82mm
Elements19
Groups14
Angle Of View84.1 - 34.3 degrees
Length4.24 in (107.6 mm)
Maximum Diameter3.46 in (88 mm)
Package Weight2.93 lb
Box Dimensions7.4 x 4.8 x 4.7 in

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Sigma
Filter Size 82mm
Focus Type Autofocus (lens motor)
Lens Mount Canon EF
Lens Type Standard / Normal
Max Focal Length 70mm
Min Focal Length 24mm