Ricoh has just officially announced the new HD Pentax-DA* 16-50mm F2.8 ED PLM AW lens. It is a premium wide-angle zoom for the company’s APS-C cameras, featuring ED and anomalous glass elements as well as an HD coating to reduce flare and ghosting, a “PLM” pulse motor to drive the focus group, the minimum focus distance of 30cm, with a max magnification of 0.24x. The lens is sealed against dust and moisture, much like the company’s DSLRs.
The newly designed optics assures great improvement in contrast and resolving power, while compensating various aberrations to a minimum and delivering sharp, clear images across the image field.
HD PENTAX-DA ★ Main specifications of 16-50mmF2.8ED PLM AW
| Focal length | 16-50mm |
|---|---|
| Equivalent to 35 mm format equivalent 24.5-76.5 mm (when equipped with a Pentax APS-C size single-lens reflex camera) |
|
| Open aperture | F2.8 |
| Minimum aperture | F22 |
| Lens configuration | 16 sheets in 10 groups |
| Angle of view (diagonal) | 83-31.5 ° (when equipped with a Pentax APS-C size single-lens reflex camera) |
| Mount type | KAF4 |
| Shortest shooting distance | 0.3m |
| Maximum shooting magnification | 0.24 times |
| Filter diameter | 77mm |
| Light intensity adjustment method | Electromagnetic diaphragm Fully automatic diaphragm |
| Number of diaphragm blades | 9 sheets |
| Circular aperture (16mm: F2.8-5.6, 50mm: F2.8-8) | |
| Aperture ring | None |
| Tripod seat | None |
| Lens hood | PH-RBN77 (included) |
| Lens cap | O-LC77 (included) |
| Lens case | S120-150 (included) |
| Maximum diameter x length | About 84mm x about 117mm |
| Mass (weight) | Approximately 712g (with hood: approximately 750g) |
| Operating temperature | -10-40 ℃ |
| Operating humidity | 85% or less (no condensation) |
| Included accessories | Lens hood PH-RBN77, lens cap O-LC77, lens mount cap K, lens case S120-150 |
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