Quick answer
A constant f/2.8 standard zoom for APS-C DSLRs with Optical Stabilizer and a hypersonic motor. It weighs about 565 g.
Pros
- Constant f/2.8
- Optical Stabilizer
- HSM autofocus
Cons
- APS-C only
- Older design
Verdict
It is a longtime favorite for crop-sensor DSLR owners.
About this lens
The Sigma 17-50mm f/2.8 EX DC OS HSM is an APS-C fast standard zoom lens covering 17-50mm at f/2.8 for Canon EF mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A bright standard zoom for APS-C cameras with a constant f/2.8 aperture.
Sigma 17-50mm f/2.8 EX DC OS HSM specifications
- Brand
- Sigma
- Mount
- Canon EF
- Focal length
- 17-50mm
- Maximum aperture
- f/2.8
- Lens type
- Zoom
- Format coverage
- aps-c
- Optical construction
- 17 elements in 13 groups
- Aperture blades
- 7
- Image stabilization
- Yes
- Autofocus motor
- HSM
- Minimum focus distance
- 0.28 m
- Maximum magnification
- 0.2x
- Filter thread
- 77 mm
- Weight
- 565 g
- Length
- 91.8 mm
- Diameter
- 83.5 mm
Specification source: sigmaphoto.com
What can you shoot with the Sigma 17-50mm f/2.8 EX DC OS HSM?
- Everyday
- Events
- Travel
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| APS-C | 1.6x | 27–80mm | 25.4–67° | 30.3–77° |
Frequently asked questions
What is the equivalent range?
About 27-80mm on Canon APS-C, which is a standard zoom range for crop-sensor bodies.
Is the Sigma 17-50mm f/2.8 EX DC OS HSM stabilized?
Yes. It has Sigma's Optical Stabilizer (OS), which helps keep handheld shots steady at slower shutter speeds.
Is the Sigma 17-50mm f/2.8 EX DC OS HSM APS-C only?
Yes. Its image circle is sized for APS-C sensors, so it is not intended for full-frame bodies.
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 17-50mm lenses
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