EF40mm f/2.8 STM
| Angle of View (Diagonal) | 57°30’ |
| Angle of View (Horizontal) | 49°20’ |
| Angle of View (Vertical) | 34° |
| Closest Focusing Distance (m, ft) | 0.3/0.98 |
| Construction (Groups Elements) | 4-6 |
| Diameter x Length (mm) (Approx.) | 68.2 x 22.8 |
| Distance Scale | o |
| Drive System | Stepping Motor-gear drive |
| Filter Size (mm) | 52 |
| Max. Magnification (x) | 0.18 |
| Min. Aperture | 22 |
| No. of Diaphragm Blades | 7 |
| Anti-dust and Moisture | Not Supported |
| Weight (g) (Approx.) | 130 |
| Accessories (Lens Cap) | E-52 II |
| Accessories (Lens Hood) | ES-52 |
| Accessories (Lens Bag) | LP811 |