Canon EF 17-40mm f/4.0L USM

Announced Feb 27, 2003 •
Wideangle zoom lens | Canon EF | 8806A002
Principal specifications
Lens type Zoom lens
Max Format size 35mm FF
Focal length 17–40 mm
Image stabilization No
Lens mount Canon EF
Aperture
Maximum aperture F4
Minimum aperture F22
Aperture ring No
Number of diaphragm blades 7
Optics
Elements 12
Groups 9
Special elements / coatings Super Spectra coatings
Focus
Minimum focus 0.28 m (11.02)
Maximum magnification 0.24×
Autofocus Yes
Motor type Ultrasonic
Full time manual Yes
Focus method Internal
Distance scale Yes
DoF scale Yes
Physical
Weight 500 g (1.10 lb)
Diameter 84 mm (3.29)
Length 97 mm (3.81)
Materials Metal barrel, metal mount
Sealing Yes
Colour Black
Zoom method Rotary (internal)
Power zoom No
Zoom lock No
Filter thread 77.0 mm
Hood product code EW-83E
Tripod collar No
Optional accessories Soft Case LP1319
Other
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