 |
 |
| Focal length |
18 mm |
| Aperture range |
f/2.8 – f/22 |
| Camera Mount |
Canon EF-Mount |
| Format compatibility |
Full Frame |
| Focusing range |
0,25 m (9.84") – ∞ |
| Free working distance |
0,12 m (4.73") - ∞ |
| Angular field** (diag. horiz. vert.) |
100° | 89° | 67° |
| Diameter of image field |
43 mm (1.69") |
| Coverage at close range (MOD)** |
274 x 180 mm (10.79 x 7.09") |
| Image ratio at minimum object distance |
1 : 7.4 |
| Lens elements | groups |
14 | 12 |
| Flange focal distance |
44 mm (1.73") |
| Entrance pupil position (front of image plane) |
107 mm (4.22") |
| Filter thread |
M77 x 0.75 |
| Rotation angle of focusing ring |
146° |
| Diameter max. |
90 mm (3.54") |
| Diameter of focusing ring |
73 mm (2.86") |
| Length (with lens caps) |
109 mm (4.31") |
| Length (without lens caps) |
93 mm (3.66") |
| Weight |
721 g (25.4 oz) |
