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

Canon EF 17-40mm video tour


We’re pleased to present a short video tour of the Canon EF 17-40mm lens. There’s no need to download any new software – just press the play button in the middle of the screen below and wait for the video to start; you may need to press the button twice. The quality and any delay before playing may vary depending on your internet connection.

Good points
Extreme wide angle coverage
Well-corrected at wider focal lengths
Fast and quiet USM focusing motor
An exotic but affordable ‘L’ lens

Bad points
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)

(relative to other zooms)


Build quality:
Optical quality:


22 / 25
22 / 25
19 / 25
20 / 25


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