Image size : APS-C
35mm film equivalent focal length : 16-35
Angle of view (horzntl, vertl, diagnl): 97º 10' - 54º 30', 74º 10'- 37º 50', 107º 30' - 63º 30'
Lens construction (elements/groups) : 13/10
No. of diaphragm blades : 6
Minimum aperture : 22-27
Closest focusing distance (m): 0.24
Maximum magnification (x) : 0.17 (at 22mm)
Distance information : Yes
Image stabilizer : No
AF actuator : USM¹
Filter diameter (mm) : 77
Max. diameter x length (mm) : 83.5 x 89.8
Weight (g) : 385
Magnification - Extension Tube EF12 II : 0.77-0.58
Magnification - Extension Tube EF25 II : 1.51-1.28
Lens Cap : E-77U / E-77II
Lens hood : EW-83E