HD PENTAX-DA 55-300mmF4-5.8ED WR
RICOH IMAGING COMPANY, LTD. is pleased to announce the launch of the HD PENTAX-DA 55-300mmF4-5.8ED WR interchangeable lens, designed for use with K-mount lens-interchangeable digital SLR cameras.
In addition to its approximately 5.5 times zoom ratio covering focal lengths from medium telephoto to super telephoto, the new lens features PENTAX-original HD coating* to deliver sharp, clear images even under such demanding lighting conditions as backlight. Its weather-resistant construction also enhances reliability and durability during challenging outdoor shooting conditions, allowing the photographer to capture high-impact telephoto images without worries.
Main Features
1. Approximately 5.5-times zoom ration 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.
2. 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.
3. 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.
4. Quick-Shift Focus System
The lens features the 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.
5. Other features
- ・SP (Super Protect) coating to keep the front surface free of dust and stains.
- ・Highly dependable metallic lens mount.
Specifications
| Focal Length | 55-300mm (Equivalent to 84.5-460mm in 35mm format) |
|---|---|
| Aperture | F4-5.8 |
| Minimum Aperture | F22-32 |
| Lens Construction | 12elements in 8groups |
| Angle of View | 29-5.4° |
| Lens Mount | KAF |
| Minimum Focusing Distance | 1.4m (4.6 ft.) |
| Maximum Magnification | 0.28× |
| Filter Diameter | 58mm |
| Diaphragm control | Fully Automatic |
| Number of Diaphragm Blades | 6 |
| Aperture ring | N/A |
| Tripod compatibility | N/A |
| Lens hood | PH-RBI58 |
| Lens cap | O-LC58 |
| Lens case | S80-160 |
| Maximum Diameter & Minimum Length | Approx.72mm x 111.5mm (2.8 inch x 4.4 inch) |
| Weight | Approx.466 g /16.4 oz (with hood Approx.502 g /17.7 oz) |
| Bundle | Case, Hood |
| Others | HD Coating |
| SP (Super Protect) Coating | |
| Quick-shift Focus System | |
| Filter Window |
Note: Designs and specifications are subject to change without notice.