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EF 17-40mm f/4L USM view 1 EF 17-40mm f/4L USM view 2

EF 17-40mm f/4L USM

Ultra-Wide Zoom Lens
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  • Overview
  • Features
  • Specifications
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  • What's in the Box

Overview

A new and 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.

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Features

  • Focal Length & Maximum Aperture: 17 - 40mm; 1:4
  • Lens Construction: 12 elements in 9 groups
  • Closest Focusing Distance: 0.28m / 0.9 ft.
  • Filter Size: 77mm
  • Weather resistant similar to other high-end L-series lenses

Main Unit Spec

Focal Length & Maximum Aperture17 - 40mm; 1:4
Lens Construction12 elements in 9 groups
Diagonal Angle of View104° - 57° 30'
Focus AdjustmentInner focusing system with USM
Closest Focusing Distance0.28m / 0.9 ft.
Zoom SystemRotating type
Filter Size77mm
Max. Diameter x Length, Weight3.3" x 3.8", 1.1 lb. / 83.5 x 96.8mm, 500g
  • EF 17-40mm f/4L USM Lens
  • Lens Hood EW-83E
  • Lens Case LP1319
  • Exclusive Inst. Book
  • One Year Limited Warranty Card

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Lens Case LP1319

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