As a key addition to the next-generation Star series, the Pentax-DA* HD 16-50mm f2.8 ED PLM AW Lens stands to mirror the super-high-performance digital cameras of the not so distant future. Consisting of a fully redesigned optical composition, you are afforded high-resolution, high-contrast imagery throughout the full aperture range. A first for a lens with this large aperture, the Pentax-DA* HD 16-50mm f2.8 utilises a smart PLM (Pulse Motor) to level-up the AF system. Thus, ensuring a fast and near-silent autofocus operation, as well as smooth focusing tracking and exposure control when shooting video. For those who prefer a more tactile optical experience, Pentax promise a more concise manual-focus operation with optimised focus-ring torque. Proudly wearing the badge of an AW (All Weather) lens, the Pentax-DA* HD 16-50mm f2.8 ED PLM AW is incredibly durable, fully weather-resistant, and ready to face the elements.