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...
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)
Excerpt: Read the rest of this review if you like, or stop here and know that I bought a Canon 17-40mm f/4 L for myself after having it and a 16-35mm f/2.8 L on loan for a...
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 ra...
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
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 ...
Summary: Canon EF 17-40mm f/4L USM is probably one of the best ultra-wide zoom lenses available on the market. For APS-C type cameras, the lens looses its ultra-wide appeal but...
A new and affordable L-series ultra-wide-angle zoom lens that’s ideal
for both film and digital SLRs. Superior optics are assured by the use of
three Aspherical lens elements, in addition to a Supe…
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