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Sigma 17-40mm F1.8 DC Art Lens

The Sigma 17-40mm f/1.8 DC is a 17–40mm f/1.8 lens designed for Canon EF, Nikon F, Sony A, Sigma SA mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Sigma 17-40mm F1.8 DC Art Lens

Sigma 17-40mm F1.8 DC Art Lens

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Lens Overview — Sigma 17-40mm f/1.8 DC

The Sigma 17-40mm f/1.8 DC Art is a wide-angle zoom lens built specifically for APS-C format DSLRs, covering a focal length range of 17mm to 40mm. What sets it apart in its category is the constant f/1.8 maximum aperture maintained throughout the entire zoom range — a specification that is genuinely uncommon in zoom lens design and opens up meaningful creative and practical advantages for photographers shooting in challenging light or wanting more control over depth of field. The lens is part of Sigma's Art line, which signals a focus on optical quality and image rendering.

It supports both autofocus and manual focus, giving shooters the flexibility to work across a range of shooting styles. The 77mm filter thread is a standard size that works with a wide selection of filters already in many photographers' kits. At 810 grams, this is a substantial lens, reflecting the optical engineering required to deliver f/1.8 across a zoom range.

It is available in Canon EF, Nikon F, Sony A, and Sigma SA mounts, making it compatible with a broad range of APS-C DSLR systems. There is no image stabilization included.

Key Features — Sigma 17-40mm f/1.8 DC

Constant f/1.8 Aperture: Maintains f/1.8 throughout the entire 17–40mm zoom range, an exceptionally rare specification that enables consistent low-light performance and depth-of-field control at any focal length.

17–40mm Zoom Range: Covers a versatile wide-angle spread on APS-C sensors, equivalent to roughly 25–60mm full-frame, suited to landscapes, interiors, environmental portraits, and everyday use.

APS-C Format Design: Optimized for APS-C sensor DSLRs, delivering image quality matched to the crop-sensor format rather than being adapted from a full-frame design.

Sigma Art Line Optics: Built under Sigma's Art series specification, which prioritizes optical performance and image rendering over compactness or cost reduction.

Autofocus with Manual Override: Supports both autofocus and manual focus, allowing photographers to switch seamlessly between shooting styles.

Four Mount Options: Available in Canon EF, Nikon F, Sony A, and Sigma SA mounts, covering a broad range of APS-C DSLR systems.

Lens Specifications — Sigma 17-40mm f/1.8 DC

Sigma 17-40mm f/1.8 DC full specifications
SpecDetail
Use CasesPortrait, Landscape, Travel, Video / Cinematography
Lens TypeZoom
FormatAPS-C / DX
Zoom/PrimeZoom
Focal Length17–40mm
Maximum Aperturef/1.8
Camera SystemDSLR
Lens MountCanon EF, Nikon F, Sony A, Sigma SA
AutofocusYes
Focus TypeAuto, Manual
Image StabilizationNone
Filter Thread77mm

Description — Sigma 17-40mm f/1.8 DC

The Sigma 17-40mm f/1.8 DC Art is a zoom lens designed for APS-C format DSLR cameras, spanning a 17mm to 40mm focal length range in the wide-angle category. Its defining specification is the constant f/1.8 maximum aperture across the entire zoom range — a feature that distinguishes it from the majority of zoom lenses available for APS-C systems. The lens supports both autofocus and manual focus, providing flexibility for different shooting scenarios.

A 77mm filter thread makes it straightforward to use with popular filter systems. At 810 grams, the build reflects the complexity of maintaining f/1.8 through a zoom range. It is offered in Canon EF, Nikon F, Sony A, and Sigma SA mounts, covering most major APS-C DSLR platforms.

Note that image stabilization is not included, so photographers should account for this when shooting in motion-sensitive situations.

Pros — Sigma 17-40mm f/1.8 DC

  • ✓Constant f/1.8 maximum aperture across the full 17–40mm zoom range — rare in zoom lens design
  • ✓Wide APS-C coverage at 17mm on the wide end, useful for landscapes, interiors, and environmental shots
  • ✓Available in four mounts: Canon EF, Nikon F, Sony A, and Sigma SA

Cons — Sigma 17-40mm f/1.8 DC

  • ✗No image stabilization — confirmed as 'None' in specs, which can be limiting at slower shutter speeds
  • ✗Weighs 810g, making it one of the heavier options for an APS-C zoom lens
  • ✗APS-C-only format means it cannot be used on full-frame DSLR bodies

Resources & Downloads — Sigma 17-40mm f/1.8 DC

Manuals & Guides

Frequently Asked Questions — Sigma 17-40mm f/1.8 DC

What camera mounts is the Sigma 17-40mm f/1.8 DC Art available in?+
This lens is available in Canon EF, Nikon F, Sony A, and Sigma SA mounts. All versions are designed for APS-C format DSLR cameras.
Does this lens have image stabilization?+
No. The specifications confirm image stabilization is listed as 'None' on this lens. Photographers working in low light will need to rely on the f/1.8 aperture or adjust shutter speed and ISO accordingly.
Is the f/1.8 aperture constant throughout the zoom range?+
Yes. The maximum aperture is f/1.8 and it is constant across the full 17–40mm focal length range, which is an uncommon feature in zoom lenses.
What filter size does this lens use?+
The Sigma 17-40mm f/1.8 DC Art uses a 77mm filter thread, a common size that is compatible with a wide range of polarizers, ND filters, and other accessories.
How heavy is this lens?+
The lens weighs 810 grams. This is worth factoring in if you plan to use it handheld for extended periods or with a lighter camera body.
Can this lens be used on full-frame cameras?+
This lens is designated as DC, meaning it is designed for APS-C format sensors. The specifications confirm it is an APS-C format lens intended for DSLR camera systems.

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