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Black Canon EF 17-40mm f/4L USM ultra-wide zoom lens with 77mm filter thread

Canon

Canon 8806A002 EF 17-40mm f/4L USM camera lens

SKU CH-8YRJ-DCVES MPN 8806A002

Ultra-wide zoom for full-frame and APS-C Canon EOS cameras, constant f/4 aperture, USM autofocus with manual override, and weather-resistant construction

  • Part type or numberSLR Lenses
  • Diameter77 mm
  • Focus systemAuto Focus
  • Lens focal length17–40 mm
  • Lens aperturef/4 (1 : 4)
  • Product format35 mm Full-Frame, Canon (APS-C)
  • Ultra-wide 17-40mm zoom captures expansive scenes
  • Constant f/4 aperture maintains exposure throughout zoom range
  • Three aspherical plus Super UD elements reduce aberrations
  • Ring-type USM delivers fast, quiet autofocus
  • Weather-resistant construction protects against dust and moisture

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

This Canon EF 17-40mm f/4L USM lens is an ultra-wide-angle zoom designed for full-frame and APS-C EOS cameras. It suits landscape, architecture and interior photographers who need a constant f/4 aperture across the 17-40mm focal range. The L-series build includes water and dust resistance for demanding environments.

Check Mount and Filter Thread

Verify your camera uses the Canon EF mount before ordering. The lens accepts 77 mm filters at the front thread. Autofocus is driven by an ultrasonic motor with full-time manual focus override. There is no image stabilisation, so consider your typical shutter speeds and lighting conditions.

Thermals Noise and Power Draw

The lens draws power from the camera body for autofocus and aperture control with negligible impact on battery life. Internal focusing and zooming keep the barrel length constant, preventing air movement that could affect balance. Ultrasonic motor operation is quiet during focus acquisition. No active cooling is required.

How it compares

Measured against everything we stock in Interchangeable Camera Lenses, at today’s prices. Recalculated every night.

Price $581.99
Typical for this category: the median of 2,570 items is $546.49.

Specifications

Product
Brand nameCanon
Model name8806A002
Part type or numberSLR Lenses
Product typeUltra Wide Angle Zoom
Product colorBlack
Audio & video
Focus systemAuto Focus
Lens focal length17–40 mm
Lens aperturef/4 (1 : 4)
Lens mountCanon EF
Viewing angle104 degree - 57.3 degree
Closest focusing distance0.28m / 0.9 ft
Optical construction12 elements in 9 groups
StabilizationNo
Auto-focusYes
Size & build
Diameter77 mm
Filter thread size77 mm
Product dimensions3.3 in × 3.8 in
Product weight1.1 lb (0.5 kg)
Shipping weight0.80 kg
Package size180 × 135 × 135 mm
Compatibility
Compatible withCanon EOS
More details
Product format35 mm Full-Frame, Canon (APS-C)
Magnifying power0.24x
Focus adjustmentInner focusing system with USM
Zoom systemRotating type

Questions about this item

What comes in the box with the Canon EF 17-40mm f/4L USM lens and what must be purchased separately?

The lens includes front and rear caps. A 77 mm filter, dedicated hood and protective case are sold separately.

Which focal length and aperture version of this Canon L-series zoom should I choose for full-frame and APS-C bodies?

This single version covers 17-40 mm at a constant f/4 aperture, compatible with both 35 mm full-frame and Canon APS-C formats.

What does the 104 to 57.3 degree angle of view mean when shooting with the 17-40 mm zoom on a full-frame camera?

At 17 mm you capture a 104 degree ultra-wide field; at 40 mm the view narrows to 57.3 degrees, covering wide to standard perspectives.

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