Lens details
Maximum Diameter x Length (mm) 85.8 x 65.5
Filter Diameter (mm) 72
Angle of View 40º, 27º,46º (horizontal, vertical, diagonal)
Magnification with Extension Tube EF25 II 0.67-0.53
Magnification with Extension Tube EF12 II 0.39-0.24
Minimum Aperture 16
Lens Construction (elements/groups) 8/6
Distance Information Yes
Magnification  0.15
Weight 590 g
AF Actuator  Ring USM
AF Footnote  Full time Manual focus
Extender Compatiblity Not compatible
Water/dust Resistance  Yes