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Canon EF 17-40mm f/4L USM specs

Canon EF 17-40mm f/4L USM
We are currently working on upgrading our specs, but here are some short details.

Ultra-Wide Zoom


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

If you are interested in using our specs commercially, check out our Camera Lenses specs database licensing page.

Filed in: Canon Camera Lenses

Description: 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... read more

Created by MG7 on Jan 27, 2010


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