| Mount | Canon EF |
| Focal length | 17–50mm |
| Maximum aperture | f/2.8 |
| Angle of view | 78°45’–31°11’
(equivalent angles of view when converted to 35mm) |
| Lens construction | 19 elements in 14 groups |
| Minimum focus distance | 0.29m (11.4in.) over entire zoom range |
| Maximum magnification ratio | 1:4.8 (at f=50mm, MFD 0.29m) |
| Diaphragm blades | 7 blades |
| Filter size | 72mm |
| Maximum diameter x overall length | 79.6mm (3.13in.) x 94.5mm (3.7in.) |
| Weight | 570g (20.15oz) |