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Black zoom lens barrel with Canon EF mount and focus ring

SIGMA

SIGMA 18-35mm f/1.8 DC HSM Zoom Lens for Canon

SKU CH-MFEF-H0985

A constant f/1.8 aperture zoom covering 18-35mm for APS-C Canon cameras with HSM focusing and SLD glass elements

  • TypeZoom Lens
  • ColorBlack
  • Fast f/1.8 constant aperture across 18-35mm zoom range
  • 8-56mm equivalent focal length suits APS-C sensors
  • Four aspherical and five SLD elements reduce aberrations
  • Super Multi-Layer Coating cuts flare and ghosting
  • Hyper Sonic Motor delivers quick, quiet autofocus

Wide-Aperture APS-C Zoom for Canon

The Sigma 18-35mm f/1.8 DC HSM is a wide-angle to normal zoom lens built for Canon EF-mount cameras with APS-C sensors. It delivers a constant f/1.8 maximum aperture across the entire 18-35mm focal range, providing a 35mm-equivalent view of 28.8-56mm. The optical design uses four aspherical and five SLD glass elements with Super Multi-Layer Coating to control aberrations and flare. A Hyper Sonic Motor drives fast, quiet autofocus with full-time manual override.

Suits Low-Light APS-C Shooters; Not Full-Frame

This lens suits photographers who need a bright, constant aperture for indoor, event or creative portrait work on APS-C bodies. The internal focus and zoom mechanism keeps the barrel length steady and the front element non-rotating, which helps when using circular polarisers. It is not for photographers using full-frame Canon cameras, as the DC designation means the image circle covers only APS-C sensors. Buyers who need weather sealing or image stabilisation should look at other options.

Constant f/1.8 Aperture Across 18-35mm Range

The single specification that decides fit is the constant f/1.8 maximum aperture maintained from 18mm to 35mm. Most zooms in this class drop to f/2.8 or slower at the long end, forcing higher ISO or slower shutter speeds in dim conditions. This design keeps exposure settings consistent while zooming, which simplifies video work and low-light stills. If your shooting rarely demands f/1.8, a variable-aperture zoom may be lighter and less expensive.

Highlights

  • Fast f/1.8 constant aperture across 18-35mm zoom range
  • 8-56mm equivalent focal length suits APS-C sensors
  • Four aspherical and five SLD elements reduce aberrations
  • Super Multi-Layer Coating cuts flare and ghosting
  • Hyper Sonic Motor delivers quick, quiet autofocus

Specifications

BrandSIGMA
Model210101-IV
TypeZoom Lens
ColorBlack

Questions about this item

Which camera bodies accept the Canon EF mount on this 18-35mm f/1.8 lens?

The lens uses a Canon EF mount, so it fits any Canon EOS body with an EF or EF-S mount, including all APS-C DSLRs and full-frame models that accept EF-S lenses in crop mode.

Will the 28.8-56mm equivalent focal range cover the same angles on my older APS-C DSLR as on a newer one?

Yes, the 18-35mm optical range always produces a 28.8-56mm equivalent field of view on any Canon APS-C sensor, regardless of the camera’s age or resolution.

How can I verify the Hyper Sonic Motor is focusing silently and accurately after mounting the lens?

Half-press the shutter and listen for near-silent operation; then review test shots at f/1.8 across the 18-35mm zoom range to confirm sharp focus on your intended subject.

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