Canon EF 17-40mm f/4.0L USM

Canon EF 17-40mm f/4.0L USMManufacturer's Description:

"The EF17-40mm f/4L USM is a lightweight ultra wide angle Canon EF zoom lens. It is especially well suited for use with digital EOS SLR cameras with a focal length conversion factor higher than 1."
Availability
Discontinued more info No Contribute
Year announced No Data Contribute
General
Lens Mounts
  • Canon EF USM
 Contribute
Focal Type Wide-angle zoom Contribute
Lens
Focal Length more info 17mm - 40mm Contribute
Angle of View more info 57° - 104° Contribute
Max Aperture more info f/4 Contribute
Min Aperture more info f/22 Contribute
Filter Size more info 77mm Contribute
35mm equivalent No Data Contribute
Internal focusing more info No Data Contribute
Focusing
Min Focus 28cm Contribute
Stabilised No Contribute
Macro more info No Contribute
Construction
Blades 7 Contribute
Elements 12 Contribute
Groups 9 Contribute
Box Contents
Box Contents more info No Data Contribute
Dimensions
Weight 500g Contribute
Height 96.8mm Contribute
Diameter 83.5mm Contribute
MTF Data
Effective focal length No Data Contribute
Weighted MTF No Data Contribute
Average Weighted MTF No Data Contribute
Weighted MTF 10 lp/mm No Data Contribute
Weighted MTF 20 lp/mm No Data Contribute
Weighted MTF 40 lp/mm No Data Contribute
Distortion No Data Contribute
Grade No Data Contribute
Photodo MTF Score No Data Contribute

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