 Mounted on a Pentax K10D | |
| Maker | Pentax |
|---|---|
| Lens mount(s) | Pentax KAF |
| Technical data | |
| Type | Zoom |
| Focus drive | Screwdrive |
| Focal length | 16-45mm |
| Focal length (35mm equiv.) | 24-68mm |
| Aperture (max/min) | f/4.0 / f/22 |
| Close focus distance | 0.28 metres (0.92 ft) |
| Max. magnification | 0.25 |
| Diaphragm blades | 6 |
| Construction | 13 elements in 10 groups |
| Features | |
| Manual focus override |  Yes |
| Weather-sealing |  No |
| Lens-based stabilization | No |
| Aperture ring | No |
| Physical | |
| Diameter | 72 millimetres (2.8 in) |
| Weight | 356 grams (0.785 lb) |
| Filter diameter | 67mm |
| Accessories | |
| Lens hood | PH-RBL Petal type |
| History | |
| Introduction | 2003 |
The Pentax smc DA 16-45mm F4 ED AL is a standard zoom lens for Pentax K-mount, announced by Pentax on December 9, 2003. It has a constant maximum aperture of f/4.
