Quick answer
The Sigma 18-35mm f/1.8 DC HSM [A] is a ultra-wide to wide-angle wide zoom lens covering 18-35mm at f/1.8 for the Canon EF mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
Sigma 18-35mm f/1.8 DC HSM [A]: an APS-C fast wide-angle zoom lens with a 18-35mm focal length and a maximum aperture of f/1.8, made for Canon EF mount cameras, with Hyper Sonic Motor autofocus. An APS-C zoom with a constant f/1.8 aperture, unusually bright for a zoom lens.
Sigma 18-35mm f/1.8 DC HSM [A] specifications
What can you shoot with the Sigma 18-35mm f/1.8 DC HSM [A]?
At 18-35mm this is a ultra-wide to wide-angle wide zoom, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
- Landscapes and cityscapes
- Street and travel photography
Its fast maximum aperture helps in dim light and gives good subject separation.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 18–35mm | 54.4–90° | 63.4–100.5° |
| APS-C | 1.6x | 29–56mm | 35.6–64° | 42.2–73.8° |
Frequently asked questions
What mount does the Sigma 18-35mm f/1.8 DC HSM [A] use?
It uses the Canon EF mount, so it fits Canon EF cameras directly.
What is the focal length of the Sigma 18-35mm f/1.8 DC HSM [A]?
It zooms across 18-35mm with a maximum aperture of f/1.8. That makes it a ultra-wide to wide-angle lens.
Is the Sigma 18-35mm f/1.8 DC HSM [A] a prime or a zoom lens?
It is a zoom lens covering 18-35mm, so you can reframe without moving. Its maximum aperture is f/1.8.
What is the Sigma 18-35mm f/1.8 DC HSM [A] equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 29–56mm on full frame, with a 35.6–64° horizontal and 42.2–73.8° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 18-35mm f/1.8 DC HSM [A] fit?
Any Canon EF-mount camera, including Canon EOS 1D X, Canon EOS 5D, Canon EOS 5D Mark II, Canon EOS 5D Mark III, and Canon EOS 5D Mark IV and 7 more.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
More Sigma lenses for Canon EF
All Sigma lenses
Other 18-35mm lenses
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