About this model
The Canon EF-S 17-55mm f/2.8 IS USM is a fast standard zoom built for Canon's APS-C DSLRs. Its 17–55mm range covers wide-angle to short telephoto, roughly matching the classic 24–70mm view on full frame, making it a strong everyday lens for portraits, events, travel and low light. The constant f/2.8 maximum aperture stays bright throughout the zoom range, so you can keep shutter speeds up and backgrounds blurred. Image Stabilisation reduces the effect of camera shake, and the ring-type USM motor focuses quickly and quietly with full-time manual override. Two UD elements and three aspherical elements help control chromatic aberration and distortion.
Key specs
| Type | Standard zoom lens (Canon EF-S) |
|---|---|
| Focal length | 17–55mm (approx. 27–88mm equivalent on APS-C) |
| Maximum aperture | f/2.8 (constant) |
| Minimum aperture | f/22 |
| Mount | Canon EF-S |
| Format | APS-C only |
| Autofocus | Ring-type USM with full-time manual focus |
| Image stabilisation | Yes, 3-stop optical IS |
| Minimum focus distance | 0.35m |
| Filter size | 77mm |
| Weight | approx. 645g |
Compatibility
Natively fits Canon EF-S mount APS-C DSLRs. It cannot be mounted on full-frame Canon DSLRs. It can be used on EF-M and RF mirrorless bodies with the appropriate mount adapter (EF-EOS M or EF-EOS R); on full-frame RF bodies, the camera automatically switches to APS-C crop mode. Uses 77mm filters.
Questions about this model
Does the Canon EF-S 17-55mm f/2.8 IS USM fit full-frame cameras?
No. It is an EF-S lens and natively fits only Canon APS-C DSLRs. It cannot be mounted on full-frame Canon DSLRs. However, it can be used on EF-M and RF mirrorless cameras with the appropriate mount adapter (EF-EOS M or EF-EOS R); on full-frame RF bodies, the camera automatically switches to APS-C crop mode.
Is the f/2.8 aperture constant across the zoom range?
Yes. The maximum aperture stays at f/2.8 from 17mm through to 55mm.
Does this lens have image stabilisation?
Yes, it has Canon's 3-stop optical Image Stabiliser.
