Lens comparison
Pentax smc DA 15mm f/4 ED AL Limited vs. Pentax smc DA 21mm f/3.2 AL Limited
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Pentax smc DA 15mm f/4 ED AL Limited |
Pentax smc DA 21mm f/3.2 AL Limited |
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| Available mount(s) | Pentax K | Pentax K |
| Application(s) | Landscape, Interiors, Architecture | Landscape, Interiors, Architecture |
| Category(s) | Wide angle prime | Wide angle prime |
| Multiplier | 1.5× | 1.5× |
| Stabilizer | no | no |
| Focal length | 15 mm (prime) | 21 mm (prime) |
| Lens construction | 8 elements in 6 groups | 8 elements in 5 groups |
| Angle of view |
35mm: N/A digital: 86° |
35mm: N/A digital: N/A |
| Number of blades | 7 | 7 |
| Maximum aperture | f/4 | f/3.2 |
| Minimum aperture | f/22 | f/22 |
| Minimum focusing distance | 18 cm | 20 cm |
| Magnification | 0.15× | 0.17× |
| Filter size | 49 mm | 49 mm |
| Size | ∅ 63 × 39.5 mm | ∅ 63 × 25 mm |
| Weight | 212 g | 140 g |
| Notes |
- Quick-Shift Focus System
- SP (Super Protect) Coating |
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| AF speed | N/A | N/A |
| AF sound | ||
| Internal focusing | N/A | N/A |
| Internal zoom | no | N/A |
| Fix front lens | N/A | N/A |
| Mount type | metal | N/A |
| Weather sealed | N/A | N/A |
| Drop in filter | N/A | N/A |
| Ultrasonic AF | N/A | no |
| Stepping motor AF | no | no |
| APS-C sized circle | yes | yes |
| Low dispersion lens element | yes | no |
| Hard case | not included | N/A |
| Soft case | DA-70 (included) | 37747 (included) |
| Lens hood | beépített (included) | MH-RBA 43mm (included) |
| Tripod adapter | not included | N/A |
| Review URL | ||
| Discontinued | yes | yes |
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