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

  • Model #: 17-40
  • Web Code: 10078860
Save: $220
Sale Ends: October 26, 2017
Sold and shipped by: Best Buy
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Special return policy for full-frame cameras, flashes, and lenses

These products may be returned or exchanged if unopened


This Canon 17-40mm L-series is an ultra-wide-angle zoom lens that's perfect for film and digital SLRs. It offers superior optics and the power to zoom in as close as 11 inches without blur or distorted images.

More Information

  • Three aspherical lens elements, including a Super UD (Ultra-low Dispersion) glass element, ensure superior optics
  • Optical coatings are optimized for use with digital cameras
  • Focuses as close as 11 inches (0.28m), and offers full-time manual focus and a powerful ring-type USM for fast and silent AF
  • Constant f/4 maximum aperture
  • Offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters (sold separately)
  • Weather-resistant construction is similar to other high-end L-series lenses
  • Focal length & maximum Aperture: 17-40mm 1:4
  • Lens construction: 12 elements in 9 groups
  • Diagonal angle of view: 104° - 57° 30'
  • Focus adjustment: Inner focusing system with USM
  • Zoom system: Rotating Type
  • Filter size: 77mm

What's in the Box?

  • Front Lens Cap
  • Rear Lens Cap
  • Hood
  • Case
  • Manual

Manufacturer's Warranty:

  • Parts - 1 Year(s)
  • Labour - 1 Year(s)

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Customer Reviews

4.6 / 5
Based on 56 review(s) More about Customer Reviews

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Positive vs. Critical Reviews

Positive 96%

54 Reviews

Critical 3%

2 Reviews

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