| Principal specifications | |
|---|---|
| Lens type | Zoom lens |
| Max Format size | APS-C / DX |
| Focal length | 18–35 mm |
| Image stabilisation | No |
| Lens mount | Canon EF-S, Nikon F (DX), Pentax KAF, Sigma SA Bayonet, Sony/Minolta Alpha DT |
| Optics | |
|---|---|
| Elements | 17 |
| Groups | 12 |
| Special elements / coatings | 5 SLD glass elements, 4 glassmold aspherical elements |
| Focus | |
|---|---|
| Minimum focus | 0.28 m (11.02?) |
| Autofocus | Yes |
| Motor type | Ring-type ultrasonic |
| Full time manual | Yes |
| Focus method | Internal |
| Distance scale | Yes |
| DoF scale | No |
| Aperture | |
|---|---|
| Maximum aperture | F1.8 |
| Minimum aperture | F16.0 |
| Aperture ring | |
| Number of diaphragm blades | 9 |
| Aperture notes | Rounded diaphragm |
| Physical | |
|---|---|
| Weight | 810 g (1.79 lb) |
| Diameter | 78 mm (3.07?) |
| Length | 121 mm (4.76?) |
| Materials | |
| Colour | |
| Power zoom | |
| Zoom lock | |
| Hood supplied | Yes |
| Hood product code | LH780-03 |
| Tripod collar | |
| Optional accessories | |