| Maker | Pentax | 
|---|---|
| Lens mount(s) | Pentax KAF3 | 
| Technical data | |
| Type | Zoom | 
| Focus drive | Ultrasonic | 
| Focal length | 17-70mm | 
| Aperture (max/min) | f/4.0 | 
| Close focus distance | 0.28 metres (0.92 ft) | 
| Max. magnification | 0.31 | 
| Diaphragm blades | 7 | 
| Construction | 17 elements in 12 groups | 
| Features | |
| Manual focus override |  Yes | 
| Weather-sealing |  No | 
| Lens-based stabilization |  No | 
| Aperture ring |  No | 
| Physical | |
| Diameter | 75 millimetres (3.0 in) | 
| Weight | 485 grams (1.069 lb) | 
| Filter diameter | 67mm | 
| History | |
| Introduction | 2008 | 
The Pentax smc DA 17-70mm F4.0 AL (IF) SDM is a constant maximum aperture standard zoom lens announced by Pentax on June 3, 2008.