HD PENTAX-DA 55-300mm F4-5.8ED WR - Общ преглед
- Weather-resistant telephoto zoom lens
- High quality finish and excellent optical performance
- Equivalent to 84.5-460mm in 35mm film format
- High Definition Coating
- Extra low-dispersion ED lens elements
Approximately 5.5-times zoom ratio in telephoto range
With its wide zoom coverage of approximately 5.5 times, the lens offers focal-length coverage from 84.5 medium telephoto to 460mm super telephoto (in the 35mm format), making it ideal for use with a wide variety of subjects and applications including portraits, sports and landscapes. It incorporates two ED (Extra-low Dispersion) glass elements in its optics to effectively compensate for chromatic aberrations over the entire zoom range and deliver well-defined, true-to-life images.
High-grade HD coating* for exceptional image rendition
The lens is treated with HD coating,* a PENTAX-exclusive multi-layer lens coating that assures higher light transmittance and lower reflectance than conventional multi-layer coatings. This means it produces sharp, clear images free of flare and ghost images, even under such adverse lighting conditions as backlight.
* HD stands for High Definition.
Dependable weather-resistant construction
The lens features weather-resistant construction to prevent the intrusion of water and moisture into the lens barrel. When the lens is mounted on a PENTAX weather-resistant digital SLR camera body, the user is assured of greater durability and reliability when shooting in rain or mist, as well as at locations subject to a spray or splash.
Quick-Shift Focus System
The lens features the PENTAX-developed Quick-Shift Focus System, which allows the user to instantly switch to manual-focus operation after the subject is captured in focus by the camera’s AF system.