The lens is the equivalent of 84.5-460 mm and incorporates two ED (Extra-low Dispersion) glass elements to effectively compensate for chromatic aberrations over the entire zoom range.
The lens is treated with Pentax’s HD coating, a multi-layer lens coating that assures higher light transmittance and more than 50 percent lower reflectance than conventional multi-layer coatings. It produces sharp, clear images free of flare and ghost images.
The lens features weather-resistant construction to prevent the intrusion of water and moisture into the lens barrel.
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.
SP (Super Protect) coating keeps the front surface free of dust and stains.
The HD Pentax-DA 55-300 mm f/4-5.8 ED WR lens will be available in November at a suggested retail price of $449.99.