| Specification | Details |
|---|---|
| Mount | Leica Camera AG L-Mount |
| Focal length | f=18 mm to 40 mm |
| Lens construction | 8 elements in 7 groups (3 aspherical lenses, 2 ED lenses, 1 UHR lens)
*The protective glass is not included |
| Aperture type | 7 diaphragm blades/circular aperture diaphragm |
| Maximum aperture | F4.5 (Wide) to F6.3 (Tele) |
| Minimum aperture value | F22 (Wide) to F32 (Tele) |
| Angle of view | 100° (Wide) to 57° (Tele) |
| In focus distance | 0.15 m (0.49 feet) to ∞ (Wide to focal length 21 mm) / 0.35 m (1.15 feet) to ∞ (Tele) (from the focus distance reference line) |
| Maximum image magnification | 0.28× (focal length 21 mm) |
| Optical Image Stabilizer | No |
| Filter diameter | 62 mm |
| Maximum diameter | 67.9 mm (2.67 in) |
| Overall length | Approx. 40.9 mm (1.61 in) (from the tip of the lens to the base side of the lens mount when the lens barrel is retracted) |
| Mass (Weight) | Approx. 155 g (0.34 lb) |
| Dust and splash resistant | Yes |
| Recommended operating temperature | -10°C to 40°C (14°F to 104°F) |
| Permissible relative humidity | 10% RH to 80% RH |