Lens details
Maximum Diameter x Length (mm) 88.5 x 113
Filter Diameter (mm) 82
Angle of View 74° - 29°, 53° - 19°30', 84° - 34° (horizontal, vertical, diagonal)
Magnification with Extension Tube EF25 II 0.74-0.41
Magnification with Extension Tube EF12 II 0.63-0.18
Minimum Aperture 22
Lens Construction (elements/groups) 18/13
Distance Information Yes
Magnification  0.21 (at 70mm)
Extender Compatibility Not compatible
Weight 805 g
AF Actuator AF Footnote Full time Manual focus