From the renowned house of Ricoh Imaging comes the Hd Pentax-da 16-50mm F2.8ED Plm Aw Lens, a new-generation Star-series lens specifically designed for Pentax Aps-c-format digital Slr cameras. This versatile standard zoom lens is engineered to deliver superior image quality and high-speed, high-precision autofocus operation, particularly when used with the latest Pentax K-3 Mark Iii. The lens boasts a completely redesigned optical system, incorporating the latest optical design technologies to ensure high-resolution, high-contrast images, even at open aperture. For the first time in a large-aperture lens, a Plm (Pulse Motor) is incorporated, ensuring high-speed, low-noise autofocus operation, and is fine-tuned for enhanced operability in manual-focus operation. The Hd Pentax-da 16-50mm F2.8ED Plm Aw Lens also features an electromagnetic diaphragm control mechanism for high precision exposure control and smooth focus tracking when used with compatible digital Slr cameras. With a minimum focusing distance of just 0.3 meters and a maximum magnification of 0.24 times, this lens offers users the flexibility to enjoy photography according to their preferences, whether it be landscape, snapshots, or portraits.This lens is a part of the new-generation Star-series, designed for optimal image quality. It effectively minimizes various aberrations, delivering sharp, clear images across the entire image field. The lens incorporates one Ed (Extra-low Dispersion) glass optical element, one anomalous glass optical element, and two Ed aspherical glass optical elements, effectively reducing chromatic aberration across the entire zoom range. Coupled with high-grade, multi-layer Hd Coating, it minimizes flare and ghost images even in challenging lighting conditions, delivering high resolving power and outstanding contrast even at open aperture.The lens maintains a maximum aperture of F2.8 across the entire focal-length range from 16 to 50 millimeters, making it an ideal regular-use lens for the Pentax K-3 Mark Iii. The advanced Plm (Pulse Motor) ensures smooth focus tracking operation and flawless exposure control, reducing operational noise during video shooting.Designed as an Aw (All Weather) model, this lens features a dustproof, weather-resistant construction to prevent water and dust particles from entering the lens interior. When paired with a Pentax dustproof, weather-resistant digital Slr camera body, it forms a highly durable, reliable digital imaging system that performs superbly in demanding shooting conditions..