The Pentax SMC FA 50mm f/1.4 is a fast-aperture prime lens for Pentax K-mount cameras. Key features include:
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75mm-equivalent focal length on an APS-C DSLR
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Great for portraiture and low-light event photography
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Quick autofocus
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Compact build
Fast-Aperture Short Tele. When mounted to an APS-C DSLR, the Pentax SMC FA 50mm f/1.4 provides a 75mm-equivalent focal length, an excellent choice for portraiture, low-light event photography, and any other shooting conditions under which you need a fast-aperture short tele.
Fast Autofocus, Compact Build. This lens offers relatively snappy autofocus in a compact size that makes it easy to keep in your bag at all times.
| Angle of View |
47° |
| Aperture |
f1.4-22 |
| Autofocus |
Autofocus |
| Brand |
Pentax |
| Compatibility |
Crop and Full Frame |
| Diameter |
2.5″ |
| Dimensions |
Length: 1.5″ |
| Filter Size |
49.0mm (non-rotating front element) |
| Filter Style |
non-rotating front element |
| Focal Length |
50.0-50.0 |
| Focusing System |
Extending front (non-rotating), |
| Groups/Elements |
6/7 |
| Hood Included |
No |
| Image Stabilization |
No |
| Item Type |
Lens |
| Lens Type |
Normal Range |
| Low Dispersion Elements |
0 |
| Max Aperture |
1.4 |
| Maximum Magnification |
0.15x |
| Minimum Aperture |
22.0 |
| Minimum Focusing Distance |
1.5feet |
| Mount |
Pentax K |
| Weather Resistant |
No |
| Weight |
0.48 lb. |
| Zoom Method |
N/A |









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