Lens finder
Pentax smc FA 20mm f/2.8
 |
Full frame sized imageLenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either. No Ultrasonic AFLenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses. No stepping motor AFLenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses. No Low Dispersion lens element is usedLow Dispersion lens elements help to reduce chromatic aberration. Not stabilizedImage stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule. |
|
The PENTAX smc P-FA 20mm lens offers outstanding versatility and is perfectly suited for architectural and outdoor photography. Weighing a mere 9 ounces, its compact and lightweight dimensions make it ideal for traveling. Like all PENTAX lenses, the smc P-FA 20mm F2.8 wide-angle lens is treated with the acclaimed smc coating for maximum light transmission, sharp definition, and high contrast while minimizing flare and ghost imaging.
|
Pentax smc FA 20mm f/2.8 Specification
| Available mount(s) | Pentax K |
| Application(s) | Interiors, Architecture |
| Category(s) | Wide angle prime |
| Multiplier | 1× |
| Stabilizer | no |
| Focal length | 20 mm (prime) |
| Lens construction | 10 elements in 9 groups |
| Angle of view |
35mm: 94° digital: N/A |
| Number of blades | N/A |
| Maximum aperture | f/2.8 |
| Minimum aperture | N/A |
| Minimum focusing distance | 24 cm |
| Magnification | 0.12× |
| Filter size | 67 mm |
| Size | ∅ 70 × 44 mm |
| Weight | 255 g |
| Notes |
|
| AF speed | N/A |
| AF sound | |
| Internal focusing | N/A |
| Internal zoom | N/A |
| Fix front lens | N/A |
| Mount type | N/A |
| Weather sealed | N/A |
| Drop in filter | N/A |
| Ultrasonic AF | no |
| Stepping motor AF | no |
| APS-C sized circle | no |
| Low dispersion lens element | no |
| Hard case | N/A |
| Soft case | S70-70 (not included) |
| Lens hood | MH-RB67 (not included) |
| Tripod adapter | N/A |
| Discontinued | yes |
Pentax smc FA 20mm f/2.8 Reviews
Other reviews
Pentax smc FA 20mm f/2.8 in the news
- Tamron SP AF60mm f/2.0 Di-II Macro
- Nikkor AF-S DX 85mm f/3.5G ED Micro
- Carl Zeiss Distagon T* 35mm f/2.0 ZF
- Sony SAL2875 28-75mm f/2.8 SAM
- Carl Zeiss Distagon T* 28mm f/2 with EF mount
- Tamron SP AF17-50mm f/2.8 XR Di II VC LD Aspherical
- Carl Zeiss Distagon T* 2,8/21 for EF mount
- Carl Zeiss Distagon T* 3,5/18 ZE
- SIGMA 70-300mm F4-5.6 DG OS
- Nikkor AF-S 16-35mm f/4 G ED VR