smc PENTAX-DA 21mm F3.2 AL Limited - Specifications
| Product data | |
|---|---|
| Article Number | 21590 |
| Release date | Jan 1, 2009 |
| Technical Specifications | |
| Focal Length | 21mm |
| Equivalent to 35mm format | 31.5mm |
| Maximum aperture | f/3.2 |
| Minimum aperture | f/22 |
| Number of Diaphragm Blades | 7 / Fully automatic |
| Angle of View | 68 degrees |
| Construction | 8 elements in 5 groups |
| Focusing Range | 0.2m to infinity |
| Magnification | approx. 0.17x |
| Filter size | 49mm / 43mm (with bundled Food) |
| Mount | PENTAX KAF Bayonet |
| Weight | 140g (4.9 oz.) |
| Dimensions (Length x Diameter) | 25mm x 63mm (2.5 inch x 1.0 inch) |
| Kit Content | Front cap Rear cap Lenshood Soft case |
| Special Features | Quick-shift focusing system Dirt resistant SP coating on front lens element |
