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Canon EF 17-40mm f/4L USMEdit

Canon EF 17-40mm f/4L USM
Canon EF 17-40mm f/4L USM
Summary Summary
Manufacturer Canon Japan
Model EF 17-40mm f/4L USM
Mount Canon EF
Marketed 2003 21 years ago
Optics Optics
Zoom Yes
Focal length 17-40mm
Zoom ratio 2.35×
Aperture f/4.0-22.0
Closest focus 0.28m
Elements/Groups 12/9
Maximum magnification 0.240×
Negative size 35mm
Aperture blades 7
Coating Multi coated
Optical diagram
Features Features
Autofocus Yes
Physical Physical
Weight 475g
Length 97mm
Diameter 84mm
Filter thread 77.0mm
Misc Misc
Link https://global.canon/en/c-museum/product/ef373.html
Meta Meta
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