Lens finder
Pentax smc FA 20-35mm f/4.0 AL
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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. |
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The smc P-FA Zoom 20mm-35mm f/4 AL compact zoom lens covers angles of view from an ultra-wide 94° at the 20mm setting to a wide 63° at 35mm. It incorporates two aspherical lens elements to reduce distortion and produce sharp, crisp image reproduction. Like all PENTAX-FA lenses, it is treated with PENTAX's acclaimed smc coating for maximum light transmission, sharp definition, and high contrast, while minimizing flare and ghost imaging. Extremely flexible, this lens is ideal for shooting panoramic landscapes and tall buildings.
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Pentax smc FA 20-35mm f/4.0 AL Specification
| Available mount(s) | Pentax K |
| Application(s) | Landscape, Interiors, Architecture |
| Category(s) | Wide angle zoom |
| Multiplier | 1× |
| Stabilizer | no |
| Focal length | 20 - 34 mm (1.7× zoom) |
| Lens construction | N/A |
| Angle of view |
35mm: 94-63° digital: N/A |
| Number of blades | N/A |
| Maximum aperture | wide: f/4 tele: f/4 |
| Minimum aperture | wide: f/22 tele: N/A |
| Minimum focusing distance | 30 cm |
| Magnification | 0.16× |
| Filter size | 58 mm |
| Size | ∅ 69.5 × 68 mm |
| Weight | 245 g |
| Notes |
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| 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 | N/A |
| Lens hood | N/A |
| Tripod adapter | N/A |
| Discontinued | yes |
Pentax smc FA 20-35mm f/4.0 AL Reviews
Other reviews
- Pentax smc FA 20-35mm f/4.0 AL review at www.photozone.de (English)
Pentax smc FA 20-35mm f/4.0 AL in the news
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