The smc Pentax D FA 645 55mm F2.8 AL (IF) SDM AW is an interchangeable camera lens by Pentax.
| Maker | Pentax |
|---|---|
| Lens mount(s) | Pentax 645AF2 |
| Technical data | |
| Type | Prime |
| Focus drive | Ultrasonic |
| Focal length | 55mm |
| Aperture (max/min) | f/2.8 |
| Close focus distance | 0.50 metres (1.6 ft) |
| Max. magnification | 0.17 |
| Diaphragm blades | 9 |
| Construction | 9 elements in 7 groups |
| Features | |
| Manual focus override |  Yes |
| Weather-sealing | Yes |
| Lens-based stabilization |  No |
| Aperture ring | No |
| Physical | |
| Max. length | 68 millimetres (2.7 in) |
| Diameter | 81 millimetres (3.2 in) |
| Weight | 416 grams (0.917 lb) |
| Filter diameter | 67mm |
| Accessories | |
| Lens hood | PH-RBN 67mm |
References
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