smc Pentax-D FA 645 25mm F4 AL (IF) SDM AW
| Maker | Pentax | 
|---|---|
| Lens mount(s) | Pentax 645AF2 | 
| Technical data | |
| Type | Prime | 
| Focus drive | Ultrasonic | 
| Focal length | 25mm | 
| Aperture (max/min) | f/4.0 | 
| Close focus distance | 0.40 metres (1.3 ft) | 
| Max. magnification | 0.11 | 
| Diaphragm blades | 9 | 
| Construction | 12 elements / 8 groups | 
| Features | |
| Manual focus override |  Yes | 
| Weather-sealing |  Yes | 
| Lens-based stabilization |  No | 
| Aperture ring |  No | 
| Physical | |
| Max. length | 140 millimetres (5.5 in) | 
| Diameter | 90 millimetres (3.5 in) | 
| Weight | 1,070 grams (2.36 lb) | 
| Filter diameter | 40.5mm | 
| Accessories | |
| Lens hood | Built-in | 
The smc Pentax-D FA 645 25mm F4 AL (IF) SDM AW is an interchangeable camera lens for the Pentax 645 medium format system.
References
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