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Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle — main product image
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle
Canon

Canon EF 17-40mm f4L USM Wide Angle Zoom Lens Bundle

★★★★★4.2 (5 reviews)

Professional L-series ultra-wide zoom delivering sharp, expansive shots from 17mm to 40mm with weather-sealed construction.

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Overview

The Canon EF 17-40mm f/4L USM is a versatile ultra-wide-angle zoom lens that has earned its place as a staple in many photographers' bags. With a focal length range of 17-40mm, it excels at capturing sweeping landscapes, towering architecture, and expansive interiors. The constant f/4 aperture ensures predictable exposure behavior throughout the zoom range, and the 12-element optical design with Super Spectra Coating delivers sharp, high-contrast images with well-controlled flare and ghosting. The UltraSonic Motor provides autofocus that is both fast and virtually silent, with full-time manual focus override for fine-tuning composition.

Built to L-series standards, this lens features a robust construction with dust and moisture resistance, making it a dependable companion for outdoor and travel photography. At just 1.1 pounds and 3.8 inches in length, it remains compact and manageable for extended shoots. The 77mm filter thread is compatible with a wide range of accessories, and the 0.9-foot minimum focusing distance opens up creative possibilities for close-up wide-angle perspectives. This bundle configuration provides everything needed to start shooting right out of the box, making it a practical choice for photographers upgrading to professional-grade glass.

Specifications

Brand
Canon
Model
EF 17-40mm f/4L USM
Focal Length
17-40mm
Maximum Aperture
f/4 (constant)
Lens Construction
12 elements in 9 groups
Angle of View
104° to 57°
Focus System
Inner focusing with USM
Closest Focusing Distance
0.9 feet (28cm)
Filter Size
77mm
Dimensions
3.3" (diameter) x 3.8" (length)
Weight
1.1 lbs

Pros & Cons

👍 Pros

  • Constant f/4 aperture maintains consistent exposure across the entire 17-40mm zoom range.
  • L-series build quality with dust and moisture resistance stands up to demanding shooting conditions.
  • UltraSonic Motor delivers fast, near-silent autofocus suitable for video and quiet environments.
  • Lightweight at just 1.1 pounds for a professional-grade wide-angle zoom.
  • Close focusing distance of 0.9 feet allows for creative perspective shots at wide focal lengths.

👎 Cons

  • No optical image stabilization, which limits handheld shooting in low light.
  • Maximum aperture of f/4 is a stop slower than the EF 16-35mm f/2.8L alternative.
  • Some barrel distortion is noticeable at the 17mm end, requiring post-processing correction.
  • On APS-C bodies the effective 27-64mm range loses much of the ultra-wide appeal.
  • Corner sharpness at f/4 on full-frame bodies can be soft compared to center performance.

Frequently Asked Questions

Yes, on full-frame bodies it provides a 17-40mm ultra-wide range. On APS-C bodies, the effective focal length is approximately 27-64mm due to the 1.6x crop factor.
The f/4 maximum aperture is slower than f/2.8 alternatives, so it gathers less light. However, it keeps the lens lighter and more affordable while still performing well in moderately lit conditions and on a tripod.
It accepts 77mm filters, which is a common size shared by many Canon L-series lenses, making it easy to share filters across your kit.
Yes, the EF 17-40mm f/4L USM features dust and moisture-resistant construction, though it performs best when paired with a weather-sealed camera body for full protection.
No, this lens does not have optical image stabilization (IS). For handheld shooting in low light, you may need to increase ISO or use a faster shutter speed to avoid blur.

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