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Canon EF 17-40mm f/4L USM
8.5 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

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Canon EF 17-40mm f/4L USM Lens Review

SLR Lens and Camera Reviews
6 June 2009
  • Excerpt: Canon EF 17-40mm f/4L USM is one of Canon's professional grade lenses, first released in May of 2003. It is one of only four ultra wide zoom lenses Canon manufactures at this time.
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REVIEW: Canon EF 17-40mm f/4.0L USM

photodo
24 November 2008
  • Excerpt: Gary Wolstenholme takes a look at this popular lightweight ultra-wide angle zoom lens, which has a constant aperture of f/4, an Ultrasonic focusing motor and sealing against the elements.
  • Pros: Superb performance in the centre throughout the range, Well built, Lightweight
  • Cons: Sudden softness in the corners may disturb full-frame SLR users, Distortion difficult to correct entirely at 17mm, Falloff at 17mm
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REVIEW: Canon 17-40mm f/4 L USM

photodo
24 November 2008
  • Conclusion: This is an exceptionally good lens and deserves it reputation, finding its place in most camera bags of professionals using Canon gear. The slightly warm colours produced by Canon L glass and the good contrast and control of other elements required for a nice lens are all there.
  • Pros: Consistent performance throughout the focal range., Build quality., Good value for money
  • Cons: Top end cameras already at the limit of this lens’ resolution., Edges drop off a bit as focal length increases.
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Overall 6
6.0

Canon EF 17-40mm f/4L USM

PC Magazine
21 November 2008
  • Conclusion: The Canon EF 17-40mm f/4L USM lens is an inexpensive alternative to the 16-35mm f/2.8, but its edges are muddy at its widest angle.
  • Pros: Ultra-wide field of view. Reasonable price tag. Good center sharpness.
  • Cons: Muddy edges and corners at 17mm. Some distortion. Noticeable color fringing.
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Canon EF 17-40mm f/4L USM Lens

Images by William Castleman
26 May 2008
  • Conclusion: If you shoot wide angle, full frame photographs with Canon cameras stopped down at f/8 and beyond, the EF 17-40mm f/4L lens is an outstanding lens. Contrast and sharpness are greatest at the wide end (20 and 24mm) of the zoom range and approach or exceed those of quality prime lenses.
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Expert Review

photo.net
9 May 2008
  • Conclusion: It isn't lighter than the 16-35/2.8L. It isn't better quality than the 16-35/2.8L. It isn't dramatically wide on the small sensor cameras. However, if you want a high quality wide-angle zoom with a medium weight and a medium aperture, the 17-40/4L is an excellent value.
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Canon EF 17-40mm f/4L USM Lens

The Digital Picture
26 August 2007
  • Excerpt: Is the Canon EF 17-40mm f/4L USM Lens right for you? Learn all you need to know about the Canon EF 17-40mm f/4L USM Lens in The-Digital-Picture.com's review!
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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 7
7.0

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, which has a constant aperture of f/4, an Ultrasonic focusing motor and sealing against the elements.
  • Pros: Superb performance in the centre throughout the range, Well built, Lightweight
  • Cons: Sudden softness in the corners may disturb full-frame SLR users, Distortion difficult to correct entirely at 17mm, Falloff at 17mm
  • Read full review
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