| Maker | Pentax |
|---|---|
| Lens mount(s) | Pentax K, Leica S |
| Technical data | |
| Type | Prime |
| Focus drive | Screwdrive |
| Focal length | 43mm |
| Aperture (max/min) | f/1.9 |
| Close focus distance | 0.45 metres (1.5 ft) |
| Max. magnification | 0.12 |
| Diaphragm blades | 8 |
| Construction | 7 elements in 6 groups |
| Features | |
| Manual focus override |  No |
| Weather-sealing | No |
| Lens-based stabilization | No |
| Aperture ring |  Yes |
| Physical | |
| Max. length | 27 millimetres (1.1 in) |
| Diameter | 64 millimetres (2.5 in) |
| Weight | 155 grams (0.342 lb) |
| Filter diameter | 49mm |
The Pentax smc FA 43mm F1.9 Limited is a normal prime lens for Pentax K-mount. It has also been sold as a Leica LTM-mount (M39 or L39) version in Japan.
