Reviews and Problems with Canon EF-S 17-85mm f/4-5.6 IS USM
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Value for money 8
Picture quality 8
Canon EF-S 17-85mm f/4-5.6 IS USM Review
What Digital Camera
15 October 2008
Summary: Overall, the Canon EF-S 17-85mm f/4-5.6 IS USM lens doesn’t really live up to its promises. The zoom range is excellent but in all other respects there are better alternatives in the Canon stable.
Conclusion: The EF-S 17-85mm is a major step up from Canon’s EF-S 18-55mm F3.5-5.6 II kit lens, adding an extended focal length range, image stabilization, fast and silent autofocus with a decent manual focus option, and substantially improved build quality.
Pros: Decent build quality - much better than any of Canon's 18-55mm kit lenses, Very useful focal length range, almost ideal for a walkaround lens, Highly effective image stabilization, Excellent autofocus and manual override, Consistently high image quality across almost all of the range
Cons: Poor performance at wideangle, with marked barrel distortion, high levels of light falloff, and intense green/magenta chromatic aberration, Slow maximum aperture, Very average close-up performance
Summary: In practice though, the Canon EF-S 17-85mm is a slightly mixed bag. On the upside,
the range is considerably more useful than the basic 3x of the 18-55mm, squeezing
in fractionally more at the wide angle end, and offering far more scope at the