Canon EF 17-40mm f/4L USM

EF 17-40mm f/4L USM, 500 g, Premium Warranty

Manufacturer
Canon
SKU
8806A011
29-08-2010
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.

Technical details

Colour of product 
Black
Weight 
500g
Camera brands compatibility 
Canon

Lens system

Component for 
SLR
Lens structure (elements/groups) 
12/9
Filter size 
8.35 cm
Lens type 
Wide zoom
Focal length range (f-f) 
17 - 40 mm
Minimum aperture number 
4
Diagonal angle of view (max)
104°
Diagonal angle of view (min)
30°

Focusing

Focus adjustment
Auto/Manual
Closest focusing distance
0.28m

Weight & dimensions

Diameter 
7.7 cm
Length 
9.68 cm