HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR - Specifications
| Product data | |
|---|---|
| Article Number | 23000 |
| Release date | Nov 7, 2013 |
| Technical Specifications | |
| Series | HD PENTAX-DA |
| Focal Length | 20-40mm |
| Equivalent to 35mm format | 30.5-61.5mm |
| Maximum aperture | F2.8-4 20-23 mm: F2.8 |
| Minimum aperture | F22-32 |
| Number of Diaphragm Blades | 9 Rounded aperture (20mm: F2.8-4 40mm: F4-5.6) |
| Angle of View | 70-39° |
| Construction | 9 elements en 8 groups |
| Smallest object distance | 0.28m (0.9 ft.) |
| Magnification | 0.20× |
| Filter size | 55mm |
| Mount | KAF3 |
| Weight | Approx. 283 g (avec pare-soleil, approx.291 g) |
| Dimensions (Length x Diameter) | Approx. 68.5mm x 71mm ( 2.7 inch x 2.8 inch) |
| Kit Content | Lens hood MH-RA55 |
| Special Features | Weather Resistant |
