Canon EF 17-40mm f/4L USM


Minimum advertised price, please contact us for inquiries.

Offers weather-resistant construction.

  • L-series lens
  • Focal length range 17-40mm
  • Maximum aperture f/4
  • Filter size 77mm diameter
  • SKU: CA8806A002
label_protection_plan + $149.95
Set up your set

An 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 Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches (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 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. All of the "L" lenses deliver optical performance equal to similiar fixed focal length lenses, and the USM lenses do this with silent, high-speed focusing. Distortions and aberrations are remarkably small for a lens of such amazing capabilities.

Supplied Accessories:

Rear lens cap - Front lens cap

Autofocus Yes
Lens mount Canon EF
Maximum aperture F4.0
Lens type Zoom lens
Max Format size 35mm FF
Focal length 17–40 mm
Image stabilisation No
Minimum aperture F22.0
Aperture ring No
Number of diaphragm blades 7
Elements 12
Groups 9
Special elements / coatings Super Spectra coatings
Minimum focus 0.28 m (11.02″)
Motor type Ultrasonic
Full time manual Yes
Focus method Internal
Distance scale Yes
DoF scale Yes
Weight 500 g (1.10 lb)
Diameter 84 mm (3.29″)
Length 97 mm (3.81″)
Sealing Yes
Zoom method Rotary (internal)
Filter thread 77 mm
Materials Metal barrel, metal mount
Colour Black
Hood product code EW-83E
Maximum magnification 0.24×
Tripod collar No
Optional accessories Soft Case LP1319
Power zoom No
Zoom lock No