Pentax HD D FA 150-450mm f4.5-5.6ED DC AW Super-Telephoto Lens for Pentax KAF Cameras PENTAX longest zoom lens for flexibility in capturing far-away subjects in all weather conditions. Ideal for sports, wildlife and outdoor applications. Focal Length-150 mm. In regard to focusing, a DC autofocus motor realizes fast and quiet performance and is accentuated by the Quick-Shift Focus System for changing between AF and MF control by simply turning the focusing ring. Shoot discreetly with in-lens, direct current (DC) Auto Focus motor operation for smooth & quiet performance. Min. Focus : 200 cm , Max. Magnification : 0.22x. Treated with state-of-the-art HD (High Definition) technology; a high grade, multi-layer coating, allowing the user to capture crisp, high-contrast images free of flare and ghosting, even under demanding lighting conditions. ED (Extra-low Dispersion) glass lens elements deliver high resolution imagery with outstanding edge-to-edge sharpness. Designed with thirteen special seals to prevent intrusion of water, moisture and dust - this is PENTAX all weather construction. Equipped with 4 AF Buttons, Focus Preset modes and Focus Range Limiter; as well as a lock button to hold zoom setting when transporting