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Canon EF 17-40mm f/4L USM
8.3 out of 10

Canon EF 17-40mm f/4L USM

Canon EF 17-40mm f/4L USM The Canon EF 17-40mm f/4L USM is Read more

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Reviews and Problems with Canon EF 17-40mm f/4L USM

Showing 1-6 of 6
Overall 8
7.7

Canon EF 17-40mm f/4L USM lens, (tested with cropped-frame APS-C body)

Camera Labs
1 July 2007
  • Summary: The Canon EF 17-40mm may deliver spectacular ultra-wide angle coverage when fitted to a full-frame body like the EOS 5D, but offers a more normal, general-purpose range when mounted on cropped bodies like the EOS 30D or 400D / XTi.
  • Pros: Canon 'L' build and optical quality, Fast and quiet USM focusing motor, Constant f4 aperture throughout range, Will also work on full-frame body
  • Cons: Shorter zoom range than kit lens, No IS (although not particularly necessary), Overkill if not considering full-frame in future, Canon EF-S 17-85mm more flexible for most
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Overall 8
8.3

Canon EF 17-40mm f/4L USM lens (full-frame tests)

Camera Labs
1 December 2006
  • Summary: Canon EF 17-40mm verdict The EF 17-40mm f/4.0L is one of the best lenses in Canon’s range. It brings you a taste of the truly exotic with ultra-wide coverage, while boasting ‘L’ quality all at a surprisingly affordable price.
  • Pros: Extreme wide angle coverage, Well-corrected at wider focal lengths, Fast and quiet USM focusing motor, An exotic but affordable 'L' lens
  • Cons: Zoom range too limited for general purpose, Soft corners at 40mm focused at infinity, Unimpressive macro capabilities, Light fall-off at wide angle (but expected)
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Overall 8
8.0

Canon EF 17-40mm f/4.0L USM review

ePHOTOzine
12 October 2010
  • Excerpt: Gary Wolstenholme takes a look at this popular lightweight ultra-wide angle zoom lens.
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Overall 8
8.0

Canon EF 17-40mm f4.0L USM

digicambuyer.co.uk
11 August 2009
  • Conclusion: The Canon 17-40mm’s optical performance might have its weak spots, but for a super-wideangle full-frame lens it’s good value
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Overall 7
7.3
Value for money 7
7.0
Overall quality 6
6.0
Build quality 9
9.0

Canon EF 17-40mm f/4 USM L (full format) - Review / Test Report

photozone.de
13 April 2009
  • Conclusion: It's not exactly easy to design a flawless full format lens and the Canon EF 17-40mm f/4 USM L shows its part of the struggles here. The lens is not overly fast but it has a comparatively broad range for a lens in this class and it seems as if Canon has overstretched things a little with respect to...
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Overall 8
8.0
Value for money 8
8.0
Overall quality 7
7.0
Build quality 9
9.0

Canon EF 17-40mm f/4 USM L - Retest @ 15mp

photozone.de
12 November 2008
  • Conclusion: The Canon EF 17-40mm f/4 USM L is a very good performer without a significant weakness. It's generally very sharp and contrasty across the image field. Vignetting is very well controlled - at least when using it on an APS-C DSLR.
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