| Official Price | BDT-1,19,830 |
HD PENTAX-D FA 21mm F2.4ED Limited DC WR Specs
| Lens type | Prime lens |
| Max Format size | 35mm FF |
| Focal length | 21 mm |
| Image stabilization | No |
| Lens mount | Pentax KAF4 |
| Aperture | |
| Maximum aperture | F2.4–22 |
| Minimum aperture | F2.4–22 |
| Aperture ring | No |
| Number of diaphragm blades | 8 |
| Aperture notes | Rounded diaphragm |
| Optics | |
| Elements | 11 |
| Groups | 8 |
| Special elements / coatings | 4 ED elements, 1 Super ED element |
| Focus | |
| Minimum focus | 0.18 m (7.09″) |
| Maximum magnification | 0.26× |
| Autofocus | Yes |
| Focus method | Internal |
| Distance scale | Yes |
| DoF scale | Yes |
| Physical | |
| Weight | 416 g (0.92 lb) |
| Diameter | 74 mm (2.91″) |
| Length | 89 mm (3.5″) |
| Materials | Aluminum |
| Sealing | Yes |
| Colour | Black, Silver |
| Filter thread | 67 mm |
| Hood supplied | Yes |
| Tripod collar | No |
| Other | |
Manufacturer description
The HD Pentax-D FA 21mm F2.4ED Limited DC WR is a wide-angle prime lens designed for use with the company’s full-frame K-mount DSLR cameras. It’s weather-resistant design encourages landscape photography use out in the elements, and the exterior design is machined from aluminum. The optical formula is comprised of 11 elements in 8 groups, including four ED elements and one Super ED element. Pentax’s HD coatings help to reduce flare and ghosting and a DC motor provides quick, silent autofocus.
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