Corresponds to 24-130 mm in 35 mm format; Dust and weatherproof construction; Quiet and precise focusing thanks to built-in DC motor; High-definition coating against stray light and ghosting; Circular aperture blades for a beautiful bokeh effect; ED elements for the optimization of imaging performance; The new lens HD PENTAX-DA 16-85 mm F3.5 ~ 5.6 DC DC WR with a zoom factor of 5.3 times a focal length range of 24 to 130 mm (KB equiv.) And is optimized for the characteristics of the digital Dedicated SLR cameras of the PENTAX K series. It offers many peculiarities that are typical of PENTAX lenses, such as HD-Compensation (High Definition) developed by PENTAX for sharp and high-contrast images even in difficult shooting conditions or backlighting. A special ED lens element (extra-low dispersion) and three aspherical lenses effectively minimize possible aberrations. In addition, the weatherproof construction guarantees long-lasting reliability and is ideal for outdoor use.