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Canon EF 17-40mm f/4L USM Zoom Lens (Black)


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Manufacturer # 8806A002

Our Stock # 541166716

  • Focal length range of 17-40mm

  • Constant max aperture of f/4

  • 3 aspherical lens elements, Super Ultra-low Dispersion (UD) element

  • 12 lens elements arranged in 9 groups

  • Filter thread specification of 77mm

Regular Price: $799.99

Canon Instant Savings :-$100.00

Final Price $699.99

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EF 17-40mm f/4L USM

The greatest USP of the 17-40mm f/4L USM is its wide diagonal angle of view 104 ? (at 17mm) – 57 ? 30’ (at 40mm) making it perfectly suitable for landscape photography. The lens construction includes three aspherical lens elements and a Super-UD (Ultra-Low Dispersion) glass element. Full-time Manual focusing and ring-type USM (Ultra-Sonic Motor) rounds off the package for landscape photographers.

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.

Focal Length & Maximum Aperture

17 - 40mm; 1:4

Lens Construction

12 elements in 9 groups

Diagonal Angle of View

104° - 57° 30'

Focus Adjustment

Inner focusing system with USM

Closest Focusing Distance

0.28m / 0.9 ft.

Zoom System

Rotating type

Filter Size


Max. Diameter x Length, Weight

3.3" x 3.8", 1.1 lb. / 83.5 x 96.8mm, 500g