Pentax DA* 16-50mm f/2.8ED PLM AW PENTAX-HD
The newly designed optics assures great improvement in contrast and resolving power, while compensating various aberrations to a minimum and delivering sharp, cle ...
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Beschrijving
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.
Superb resolving power and delivers super-clear, high-contrast images from the middle of the image field to the edges. By incorporating one ED (Extra-low Dispersion) glass optical element, one anomalous dispersion glass optical element and two ED (Extra-low Dispersion) aspherical glass optical elements, it reduces chromatic aberration to a minimum over the entire zoom range.
HD Coating
A coating with a high level of hardness and durability, reducing reflectance to less than 50% of conventional multi-layer coating, delivering multi-layer coating for a new age, which is highly effective in suppressing ghost images and flares. The advanced lens construction is also effective in suppressing flares for superb imaging that reproduces subjects with clarity and contrast.
High-performance PLM for quiet, high-speed autofocus operation
The focus-lens elements are directly driven by a PLM (Pulse Motor), providing much-improved focusing speed (approx. 2.2 times faster in the wide-angle range, or approx. 1.5 times faster in the telephoto range, compared to the smc PENTAX-DA★16-50mm F2.8ED AL[IF] SDM),* while effectively minimizing noise for quieter operation. Manual-focus operation of the power-assisted focus mechanism has also been upgraded to optimize the precision and response of detecting the focus ring. As the result, the focus-lens elements shift more efficiently and flawlessly in synchronization with focus-ring operation.
* When using AF.S mode for viewfinder shooting of still images, at a distance of 0.3 meters to infinity.
Dustproof, weather-resistant AW (All Weather) construction
This lens features All Weather (AW) construction to prevent the intrusion of dust and water into the lens interior. Pair it with a PENTAX dustproof, weather resistant digital SLR camera body for creative shooting in rain or mist, or other locations prone to splashing water.
Super Protect (SP) Coating
SP coating is a PENTAX-original special coating that provides superior performance in repelling water and oils. It is used on the front surface of the first high-performance lens for effective protection of the lens surface. This coating not only prevents adhesion of dust, water drops, oils, and other substances, but it also makes it easy to wipe off objects that adhere to the lens.
Quick-Shift Focus System
After focusing using the autofocus, the focus ring can be turned to allow immediate focus adjustment using the manual focus. This feature enables smooth operability by eliminating the need for an AF/MF switching operation. This is useful during closeup photography, for instance, when you want to shoot while making fine adjustments to the focus.
Specificaties
| Focal length (Equivalent to 35mm format) | 16-50mm Equivalent to 24.5-76.5mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras) |
|---|---|
| Maximum Aperture | F2.8 |
| Minimum Aperture | F22 |
| Lens construction | 16 elements in 10 groups |
| Angle of View (Diagonal) | 83-31.5° (when attached to PENTAX APS-C size DSLR cameras) |
| Mount | KAF4 |
| Minimum Focusing Distance | 0.3m (0.98ft.) |
| Maximum Magnification | 0.24x |
| Filter Diameter | 77mm |
| Diaphragm Control | Electromagnetic diaphragm Fully automatic |
| Number of Diaphragm Blades | 9 Rounded diaphragm （16mm:F2.8-5.6 50mm:F2.8-8） |
| Aperture Ring | N/A |
| Tripod Mount | N/A |
| Lens Hood | PH-RBN77 (included) |
| Lens Cap | O-LC77 (included) |
| Lens Case | S120-150 (included) |
| Maximum Diameter x Length | approx. 84mm x 117mm (approx. 3.3in. x 4.6in.) |
| Weight | approx. 712g / with hood approx. 750g (approx. 25.1oz. / with hood approx. 26.5oz.) |
| Temperature | -10°C～40°C (14°F～104°F) |
| Humidity | 85% or less (no condensation) |
| Included Accessories | Lens Hood PH-RBN77, Lens Cap O-LC77, Lens Mount Cap K, Lens Case S120-150 |
| Others | HD Coating SP (Super Protect) Coating AW (All Weather Resistant) Quick-shift Focus System (QFS/M) Pulse Motor |
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