This ultra-wideangle lens has the shortest focal length in the L-series. The second element is aspherical to correct distortion. Other aberrations such as astigmatism are also corrected, resulting in ideal image quality. Equipped with a fixed, petal-type hood and a gelatin filter holder at the rear.
| Filter Size | Accepts gel filters in rear slot |
| f/Stop Range | 2.8-22 |
| Minimum Focus Distance | 0.8' |
| Magnification | 1:10 |
| Zoom/Focus Control | Not applicable |
| Angle of View | 114 Degrees |
| Groups/Elements | 10/14 |
| Length | 3.5" |
| Maximum Diameter | 3.3" |
| Weight | 1.23 lb |