Lens details
Maximum Diameter x Length (mm) 82.6 x 112.8
Filter Diameter (mm) 77
Angle of View 98° - 54°, 74°10′ - 38°, 108°10′ - 63° (horizontal, vertical, diagonal)
Magnification with Extension Tube EF25 II 1.12-0.80
Magnification with Extension Tube EF12 II 0.63-0.36
Minimum Aperture 22
Lens Construction (elements/groups) 16/12
Distance Information Yes
Magnification  0.23x (at 35mm)
Extender Compatibility Not Compatible
Weight 615 g
AF Actuator  Ring USM
AF Actuator AF Footnote Full time Manual focus
Water/dust Resistance Yes