"Tamron 16-300mm F/3.5-6.3 Di II PZD MACRO an advanced new All-in-One zoom lens, designed exclusively for DSLRs with APS-C size image sensors, that provides an amazing 18.8x zoom ratio. A further expansion of the imaging range with a minimum focal length of 16mm (35mm film equivalent: 24.8mm) at the wide-angle end of the zoom range, and a maximum focal length of 300mm (35mm film equivalent: 465mm), this remarkable new lens provides the world's first zoom ratio of approximately 18.8x. Superior, reliable image quality. The lens construction features 16 elements in 12 groups. This includes three Molded-Glass Aspherical elements, one Hybrid Aspherical element, two LD (Low Dispersion) elements, one XR (Extra Refractive index) glass element, and one element of UXR (Ultra-Extra Refractive Index) glass, which has a greater refractive index than XR. The full use of specialized glass elements in the design contributes to thorough compensation of optical aberrations. In addition, the use of the latest coating technology for suppressing reflections on lens element surfaces minimizes unwanted flare and ghosting and assures sharp, crisp, high-contrast images. Using a new design approach to create an ultra-compact lens. The latest optical technology has been used to provide an expanded zoom range (compared to the B008) at both the wide-angle and telephoto ends, without necessitating the use of an oversized lens body. By employing UXR glass|A high-performance, high-power zoom lens that delivers focal lengths extending from an unprecedented 16mm at the wide-angle end up to a long-range telephoto 300mm!|Incorporates PZD (Piezo Drive) and Tamron's exclusive VC (Vibration Compensation)system to further enhance the real-world performance of this next-generation ""all-around lens"", which makes taking photographs more convenient and enjoyable."