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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

  • PartSLR Lenses
  • TypeUltra Wide Angle Zoom
  • ColorBlack
  • Diameter77 mm
  • CompatibilityCanon EOS
  • Focus TypeAuto Focus
  • 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.

Highlights

  • 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

Specifications

BrandCanon
Model8806A002
PartSLR Lenses
TypeUltra Wide Angle Zoom
ColorBlack
Diameter77 mm
CompatibilityCanon EOS
Focus TypeAuto Focus
Focal Length17 - 40 mm
Aperturef/4 (1 : 4)
Format35 mm Full-Frame, Canon (APS-C)
Camera MountCanon EF
Angle of View104 degree - 57.3 degree
Minimum Focus Distance0.28m / 0.9 ft.
Magnification0.24x
Lens Construction12 elements in 9 groups
Filter thread (Diameter)77 mm
Image StabilizationNo
AutofocusYes
Focus AdjustmentInner focusing system with USM
Zoom SystemRotating type
Dimensions3.3" x 3.8"
Weight1.1 lbs.
Shipping weight0.80 kg
Package size180 × 135 × 135 mm

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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