Angle of view (horzntl, vertl, diagnl): 15°, 10°, 18°
Lens construction (elements/groups) : 10/8
No. of diaphragm blades : 8
Minimum aperture : 32
Closest focusing distance (m): 0.9
Maximum magnification (x) : 0.19
AF actuator : USM¹
Filter diameter (mm): 72
Max. diameter x length (mm) : 82.5 x 112
Weight (g) : 750
Magnification - Extension Tube EF12 II : 0.29 - 0.09
Magnification - Extension Tube EF25 II : 0.41 - 0.20
Lens Cap : E-72U / E-72II
Lens hood : ET-78II