Description Pentax DA 16-85mm f3.5-5.6 ED DC WR Camera Lens The HD PENTAX DA 16-85mm f/3.5-5.6 ED DC WR is optimized to provide premium performance for use on PENTAX K-mount digital SLR cameras. Catering to the needs of the photographer, this lens provides a high zoom ratio of approximately 5.3 times to cover focal lengths from 16mm ultra-wide-angle to 85mm medium-telephoto for lengths equivalent to 24.5mm to 130mm (in the 35mm format).This versatile zoom lens comes in handy for a wide variety of scenes and subjects, including sweeping landscapes and cramped rooms. Equipped with the PENTAX-exclusive, HD coating, this lens is sure to offer sharp, clear images even under challenging light conditions.Consisting of 16 optical elements in 12 groups, this lens features one ED element and three high-grade aspherical elements to minimize spherical and chromatic aberrations and improve color rendition. In order to accommodate high-resolution image sensors in DSLRs, its MTF is programmed to be more acute than those of conventional models in the same class to deliver high-resolution, fine-detailed images. Versatile, 5.3-times Zoom Lens Covering Ultra-Wide Angles This zoom lens offers a zoom ratio of approximately 5.3 times to cover the ultra-wide-angle to telephoto ranges (for focal lengths equivalent to 24.5mm to 130mm in the 35mm format). In addition to the most commonly used focal lengths, it provides ultra-wide-angle coverage to produce distinctive, creative visual expressions, such as an exaggerated perspective or an extra-wide depth of field. HD Coating to Improve Image Description This lens is treated with the high-grade, multi-layer HD Coating. Compared with conventional multi-layer coatings, this PENTAX-original coating assures higher light transmission and reduced reflections to deliver bright, high-contrast images free from flare and ghosting, even under demanding backlit conditions. Weather-Resistant Construction This lens features dependable, weather-resistant construction with eight special seals to effectively prevent intrusion of water into the lens interior. When used with a weather-resistant digital SLR camera body, it assures a durable, reliable digital imaging system that performs superbly in demanding shooting settings — even in rain or mist or in locations prone to water splashes or spray.