Extender EF 1.4x III
| Angle of View (Diagonal) | - |
| Angle of View (Horizontal) | - |
| Angle of View (Vertical) | - |
| Closest Focusing Distance (m, ft) | - |
| Construction (Groups Elements) | 3-7 |
| Diameter x Length (mm) (Approx.) | 72.0 x 27.2 |
| Distance Scale | - |
| Drive System | - |
| Filter Size (mm) | - |
| Max. Magnification (x) | - |
| Min. Aperture | - |
| No. of Diaphragm Blades | - |
| Anti-dust and Moisture | Supported |
| Weight (g) (Approx.) | 225 |
| Accessories (Lens Cap) | Extender Cap EII |
| Accessories (Lens Hood) | - |
| Accessories (Lens Bag) | LP811 |