Canon EF 17-40 mm f/4.0L USM
2. Pictures and parameters
Pictures:
Parameters:
| Manufacturer | Canon |
|---|---|
| Model | EF 17-40 mm f/4.0L USM |
| Lens style | Wide angle zoom |
| Focal length | 17 - 40 mm |
| Maximum aperture | f/4 |
| Angle of view | 104 - 57.3 o |
| Closest focusing distance | 0.28 m |
| Maximum magnification | 1:4.1 |
| Minimum aperture | 22 |
| Number of diaphragm blades | 7 |
| Auto focus type | USM |
| Lens Construction | 12 elements / 9 groups |
| Filter diameter | 77 mm |
| Macro | No |
| Available mounts | Canon EF |
| Dimensions | 83.5 x 96.8 mm |
| Weight | 475 g |
| Additional information | Marketed May 2003 |
