Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR

(From Pentax lens literature) Ricoh Imaging Americas Corporation has announced the HD PENTAX-D FA 28-105mm f/3.5-5.6ED DC WR lens. This new, compact and lightweight zoom lens provides the most frequently requested focal-length range for general photography, from wide angle to medium telephoto.

This versatile zoom lens is designed to cover the large full-frame sensor found in the new PENTAX K-1 camera, incorporating state-of-the-art optics and high-performance optical elements. When mounted on the K-1 camera body, it delivers high-resolution imaging power, and is an ideal every day-use lens for the new camera.

Main Features

1. Standard zoom lens covering most frequently-used range
   This standard zoom lens accommodates the image circle of a 35mm full-frame image sensor, and covers focal lengths between 28mm wide angle and 105mm medium telephoto. By incorporating the latest optics and a number of high-performance optical elements, it retains a sufficient brightness level even at edges of the image field, while effectively compensating for aberrations. It delivers high-resolution images by optimizing the imaging power of the PENTAX K-1 camera's approximately 36.4 effective megapixels. Its compact, lightweight body and excellent cost performance make this lens a perfect companion lens to the PENTAX K-1.
2. Excellent image resolution, complementing the PENTAX K-1 full-frame digital SLR camera performance
   With 15-element, 11-group optics, this zoom lens incorporates two high-precision aspherical optical elements, one ED (Extra-low Dispersion) glass optical element and one anomalous-dispersion glass optical element to deliver bright, sharp images with minimal chromatic and spherical aberrations. The optics are designed to deliver ample resolving power for the large, high-pixel image sensor, producing well-defined, fine-detailed images.
3. HD Coating to improve image quality
   This lens is treated with the high-grade, multi-layer HD (high-definition) coating. Compared with conventional multi-layer coatings, this PENTAX-original coating assures higher light transmittance and less reflection to deliver bright, high-contrast images that are free of flare and ghost images, even under demanding lighting conditions such as backlight.
4. Quick-Shift Focus System
   This PENTAX-developed system allows for flawless, delay-free switching from autofocus to manual-focus operation, after the subject is captured in focus by the camera's AF system.
5. Weather-resistant construction
   This lens features a dependable weather-resistant construction with eight sealing parts to effectively prevent the intrusion of water into the lens interior. Paired with a weather-resistant PENTAX digital SLR camera body, it creates a durable, dependable digital imaging system that performs superbly in demanding shooting settings -- even in rain or mist, or in locations prone to water splashing or spray.
6. Other features
   
   • SP (Super Protect) Coating applied to the front surface of the lens to effectively repel water and grease.
   • Rounded diaphragm to produce a smooth, beautiful bokeh (defocus) effect, while minimizing the streaking effect of point light sources.
   • Built-in DC motor to assure smooth, quiet, high-speed autofocus operation

Pricing and Availability
The HD PENTAX-D FA 28-105mm f/3.5-5.6ED DC WR lens will be available in April 2016 at www.ricohimaging.com and retail outlets nationwide for a manufacturer's suggested retail price of US$499.99.