Pentax 560-560mm f/5.6-45 Super-Telephoto Fixed Zoom Camera Lens, White (HD PENTAX-DA 560mm F5.6ED AW) Super-telephoto of 560mm focal length (859mm in 35mm format). PENTAX-original, high-grade multi-layer HD (High Definition) Coating on lens provides sharp, clear images free of flare and ghosting. Unique telescope-type optical design and the use of two extra-low dispersion (ED) lens elements delivers bright, high-resolution images even at the edges, with minimal chromatic aberration. Rounded diaphragm blades result in images with a smooth, beautiful bokeh (out-of-focus rendition). Smooth autofocus operation using an AF driving motor (DC motor) installed in the lens barrel. Dustproof, weather-resistant construction featuring 29 special seals. Built-in, removable C-PL circular polarizing filter holder in the lens barrel. White lens exterior to minimize heat haze generated inside the lens barrel.