This ultra-wide-angle lens has the shortest focal length in the L-series. Element 2 is an aspherical lens to correct distortion. Other aberrations such as astigmatism are also corrected, resulting in idea image quality. The lens has a fixed, petal-type hood and a gelatin filter holder at the rear.
Specifications:
| Lens Construction (group) | 10 |
| Lens Construction (element) | 13 |
| No. of Diaphragm Blades | 5 |
| Minimum Aperture | 22 |
Closest Focusing Distance (m)
| 0.25 |
| Maximum Magnifcation (x) | 0.1 |
| Filter Diameter (mm) | -- |
| Maximum Diameter x Length (mm) | 77 X 89 |
| Weight (g) | 560 |
| . |
