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

SKU
100777
product overview
product overview
  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • One Super Ultra-Low Dispersion Element
  • Three Aspherical Element
  • Super Spectra Coating
  • Ring-Type Ultrasonic Motor AF System
  • Weather-Sealed Construction
  • Rounded 7-Blade Diaphragm
$1,129.00
In stock

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Spanning a versatile wide-angle range, the EF 17-40mm f/4L USM Lens is a Canon L-series zoom featuring a constant f/4 maximum aperture along with a sophisticated optical design and durable construction. One Super UD element is featured, along with three aspherical elements, which help to reduce both chromatic and spherical aberrations in order to realize high sharpness, clarity, and color accuracy. A Super Spectra coating has also been applied to suppress flare and ghosting for improved contrast in difficult lighting conditions. Complementing the imaging capabilities, this wide-angle zoom also features a ring-type USM and internal focusing mechanism to afford quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. Additionally, this lens is weather-sealed for use in trying environmental conditions.

Wide-angle zoom is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 27.2-64mm equivalent focal length range.
Constant f/4 maximum aperture maintains consistent illumination throughout the zoom range.
One Super Ultra-Low Dispersion glass element noticeably reduces color fringing and chromatic aberrations for high clarity and color fidelity.
Three aspherical elements minimize spherical aberrations and distortions for improved sharpness and accurate rendering.
Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.
A ring-type Ultrasonic Motor (USM), along with an internal focusing system, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.
Rounded seven-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.
As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.
In addition to the front 77mm filter ring, this lens also has a rear filter holder for up to three cut gel filters.
  • MPN - EF17-40L
  • GTIN - 4960999189949
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NameValue
BrandCanon
Focal Length17 - 40mm
Comparable APS-C 1.6x Focal Length: 27 - 64 mm
Lens typeZoom lens
Aperture RangeMaximum: f/4
Minimum: f/22
Max Format size35mm Full Frame
Camera MountCanon EF
Lens Format35mm Film / Full-Frame Digital Sensor Canon (APS-C)
Lens mountCanon EF
Minimum Focusing Distance11.02“ (28 cm)
Focus TypeAutofocus
Minimum apertureF22.0
Image StabilizerNo
Diaphragm Blades7
Angle Of View104 - 57 30’
Elements12
Groups 9
Groups9
Diaphragm Blades7
Special Elements/CoatingsSuper Spectra coatings
Filter SizeFront: 77 mm
Tripod CollarNo
AutofocusYes
Elements12
Motor TypeUltrasonic
Weight500
Dimensions (DxL)Approx. 3.29 x 3.81“ (83.5 x 96.8 mm)
Diameter84 mm
Weight475
Length97 mm
SealingYes
Filter Thread77 mm
Lens HoodCanon EW-83E
Focal Length17 to 40mm
Filter Thread SizeFront: 77 mm
Dimensions(DxL)83.5 x 96.8 mm
Weight500 g
AutofocusYes
ApertureMaximum: f/4
Minimum: f/22
Camera Mount TypeCanon EF
Format Compatibility35mm Film / Full-Frame Digital Sensor
Angle of View104 to 57 30'
Minimum Focus Distance28 cm
Magnification0.24x
Maximum Reproduction Ratio1:4
Optical Design12 Elements in 9 Groups
Diaphragm Blades7, Rounded
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What’s In The Box

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

  • Canon EF 17-40mm f/4L USM Camera Lens x 1
  • E-77 II 77mm Lens Cap x 1
  • Lens Dust Cap E (Rear) x 1
  • EW-83E Lens Hood x 1
  • Lens Case LP1319 x 1

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