EF100mm f/2.8 Macro USM
| Angle of View (Diagonal) | 24° |
| Angle of View (Horizontal) | 20° |
| Angle of View (Vertical) | 14° |
| Closest Focusing Distance (m, ft) | 0.31/1.0 |
| Construction (Groups Elements) | 8-12 |
| Diameter x Length (mm) (Approx.) | 78.6 x 118.6 |
| Distance Scale | o |
| Drive System | Ring-type USM |
| Filter Size (mm) | 58 |
| Max. Magnification (x) | 1 |
| Min. Aperture | 32 |
| No. of Diaphragm Blades | 8 |
| Anti-dust and Moisture | Not Supported |
| Weight (g) (Approx.) | 580 |
| Accessories (Lens Cap) | E-58 II |
| Accessories (Lens Hood) | ET-67 |
| Accessories (Lens Bag) | LP1219 |