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Canon EF-S 17-55mm lens

EF-S 17–55mm f/2.8 IS USM
Canon EF-S 17-55mm.jpg
Maker Canon
Technical data
Type Zoom
Focal length 17–55mm
Focal length (35mm equiv.) 27–88mm
Crop factor 1.6
Aperture (max/min) f/2.8 / f/22
Close focus distance 0.35 m (1.15 ft)
Max. magnification 0.17 @ 55mm
Diaphragm blades 7
Construction 19 elements in 12 groups
Features
Short back focus Yes Yes
Ultrasonic motor Yes Yes
Lens-based stabilization Yes Yes
Macro capable No No
Application Fast Standard Zoom
Physical
Max. length 110.6 mm (4.4 in)
Diameter 83.5 mm (3.3 in)
Weight 645 g
Filter diameter 77 mm
Accessories
Lens hood EW-83J, optional
Case LP1219, optional
Angle of view
Horizontal 68°40'–23°20'
Vertical 48°–15°40'
Diagonal 78°30'–27°50'
History
Introduction 2006
Retail info
MSRP $1,179 USD

The Canon EF-S 17–55mm f/2.8 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 27–88mm.

It is praised as "one of the best general/multi-purpose lenses available", and ideal for available light photography on a Canon APS-C camera.

The fast f/2.8 aperture, combined with 3-stop Image Stabilization, makes the 17–55 very useful in low light compared to an un-stabilized f/3.5–5.6 Canon EF-S 18–55mm lens, which is a frequent kit lens, and thus the 17–55 is much more suited for hand-holding and available light photography. Newer versions of the 18–55 kit lens include 4-stop Image Stabilization, but remain slower aperture, partly addressing this concern.

This lens has been criticized by one review as prone to flare when used without a hood, and especially with low-quality photographic filters.

The 17–55 suffers from vignetting at f/2.8 of 0.5–1 EV throughout the focal range, though current Canon bodies are able to correct this by storing the vignetting data within the camera memory.

Chromatic aberration is a relative weakness at the wide end (at the edges and corners), but is quite low for a zoom lens in this range.Barrel distortion is evident at the wide end.


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