Canon EF 17-40mm f/4L USM

Weight: 500 g
Brand: Canon
Description: Mount: Canon EF, lens type: wide-angle, standard, focal length: variable, autofocus, min. focal length: 17 mm, max. focal length: 40 mm, aperture F at min. focal length
Additional Information: Highly resistant to dust and moisture penetration, lens hood EW-83E, soft case type LP1319, extension rings type EF12, EF25, change to manual focus at any time
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, internal focusing
Length: 96.8 mm
Diameter: 83.5 mm
Max. focal length: 40 mm
Min. focal length: 17 mm
Focal length: Variable
Lens type: Wide angle, standard
Zoom ratio: 2.4x
Max viewing angle: 104 deg.min
Minimum focus distance: 0.28 m
Auto focus: There is
Bayonet: Canon EF
Filter thread diameter: 77 mm
Aperture F at max. focal length: 4
Aperture F at min. focal length: 4
Minimum aperture F: 22
Number of aperture blades: 7
Minimum viewing angle: 57 degrees min
Zoom in macro mode: 0.24
Number of element groups: 9
Number of elements: 12