Aspherical lens

Angle of View (diagonal)	46o
Lens Construction	8 elements in 6 groups
No. of Diaphragm Blades	8 (circular aperture)
Minimum Aperture	f/16
Closest Focusing Distance (m)	0.45m
Maximum Magnification (x)	0.11x
AF Actuator	Ring USM
Filter Diameter (mm)	72mm
Max. Length x Diameter (mm)	65.5 x 85.8mm
Weight (g)	590g
Accessories
Magnification with Extension Tube EF 12 II	0.39x - 0.24x
Magnification with Extension Tube EF 25 II	0.67x - 0.53x
Lens Hood	ES-78
Lens Cap	E-72U
Gelatin Filter Holder III (Hood III)*	Compatible (0)
Gelatin Filter Holder IV (Hood IV)*	Compatible (1)

* Maximum number of Hood III / IV attachable. In the case of zoom lenses, the maximum number applies to the shortest focal length.

All data is based on Canon's standard testing methods. Subject to change without notice