Lens finder
Pentax smc DA 21mm f/3.2 AL Limited
   |
APS-C 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. |
Pentax smc DA 21mm f/3.2 AL Limited Specification
| Available mount(s) | Pentax K |
| Application(s) | Landscape, Interiors, Architecture |
| Category(s) | Wide angle prime |
| Multiplier | 1.5× |
| Stabilizer | no |
| Focal length | 21 mm (prime) |
| Lens construction | 8 elements in 5 groups |
| Angle of view |
35mm: N/A digital: N/A |
| Number of blades | 7 |
| Maximum aperture | f/3.2 |
| Minimum aperture | f/22 |
| Minimum focusing distance | 20 cm |
| Magnification | 0.17× |
| Filter size | 49 mm |
| Size | ∅ 63 × 25 mm |
| Weight | 140 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 | yes |
| Low dispersion lens element | no |
| Hard case | N/A |
| Soft case | 37747 (included) |
| Lens hood | MH-RBA 43mm (included) |
| Tripod adapter | N/A |
| Discontinued | yes |
Pentax smc DA 21mm f/3.2 AL Limited Reviews
Other reviews
- Pentax smc DA 21mm f/3.2 AL Limited review at www.ephotozine.com (English)
- Pentax smc DA 21mm f/3.2 AL Limited review at dc.watch.impress.co.jp (Japanese)
- Pentax smc DA 21mm f/3.2 AL Limited review at www.photozone.de (English)
- Pentax smc DA 21mm f/3.2 AL Limited review at www.lenstip.com (English)
- Pentax smc DA 21mm f/3.2 AL Limited review at www.ephotozine.com (English)
Pentax smc DA 21mm f/3.2 AL Limited 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