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Canon 17-40mm USM L-Series Zoom f/4.0 - EF Mount

Abel Code: CN-8806A002
Mfr. Code: 8806A002
Estimated to Ship – Contact Sales for Availability
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
This 17-40mm USM L-Series zoom lens features an f/4.0 max. aperture, 77mm filter threads, close focus at 11" (0.28m), and an EF Mount.
Key Highlights
  • 17-40mm f/4.0 Zoom
  • 77mm filter threads & gel filter holder
  • Close Focus: 11" (0.28m)


The Canon 17-40mm USM L-Series Zoom f/4.0 is an affordable L-series ultra-wide-angle zoom lens that is ideal for both film and digital SLRs. Superior optics are assured by three Aspherical lens elements, in addition to a Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras.

This lens focuses as close as 11" (0.28m), and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f/4.0 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Finally, it offers weather-resistant construction similar to other high-end L-series lenses.


  • Focal Length: 17-40mm
  • Maximum Aperture: f/4.0
  • Lens Construction: 12 elements in 9 groups
  • Diagonal Angle of View: 104° - 57°30'
  • Focus Adjustment: Inner focusing system with USM
  • Closest Focusing Distance: 11" (0.28m)
  • Filter Size: 77mm
  • Diameter x Length: 3.3" x 3.8" (83.5mm x 96.8mm)
  • Weight: 1.1 lb (500g)

What's in the Box

  • Lens Case
  • Rear Cap
  • Front Cap
  • EW-83E Lens Hood
  • Canon 17-40mm USM L-Series Zoom f/4.0


Key Highlights

  • 17-40mm f/4.0 Zoom
  • 77mm filter threads & gel filter holder
  • Close Focus: 11" (0.28m)
  • EF Mount

Lens Characteristics

Prime or Zoom:
Lens Mount:
Max Aperture F-stop:
Focus Scale:
Feet - Imperial
Filter Thread Size:
Zoom Range:
Max Dimensions (Diameter x Length):
3.3" x 3.8" - 83.5mm x 96.8mm
Elements & Groups:
12 elements in 9 groups
Minimum Focus Distance:
11" (0.28m)
Max Angle of View:


5.5 in
5.5 in
7 in
1.85 lb
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