Tamron has just released a FUJIFILM X-mount version of its popular mid-range, wide-aperture zoom—the Tamron 17-70mm f/2.8 Di III-A VC RXD lens—which had been previously available only for Sony E-mount APS-C cameras. On the FUJIFILM X APS-C bodies, the camera sports a wide-to-telephoto 4.1x focal length range of 25.5-105mm and a constant wide f/2.8 aperture. This middle-range zoom is ideal for all sorts of general use, travel, portraiture, and street photography.
The Tamron 17-70mm f/2.8 Di III-A VC RXD lens is packed with premium features that include the RXD (Rapid eXtra-silent stepping Drive) stepping motor for quick and near-silent autofocus with full-time manual override capability. The minimum focus distance is a short 7.5" and the lens is designed to minimize focus breathing. Tamron's proven Vibration Compensation (VC) system helps steady the photographer's images when shutter speeds slow.
The 16-element-in-12-group optical design features two Glass Molded (GM) aspherical elements, a hybrid aspherical element, and two low-dispersion elements to increase sharpness, reduce chromatic aberrations, and prevent color fringing. A 9-bladed rounded diaphragm helps create pleasing out-of-focus highlights. Tamron's Broad-Band Anti-Reflection (BBAR) Coating has been applied to individual elements to reduce occurrences of flare and ghosting.
The lens also features moisture-resistant construction for use in wet weather and a fluorine coating has been applied to the front element to protect it from dust, dirt, and smears.
As mentioned before, the Tamron's all-purpose focal length zoom range is ideal for many uses and the lens’s size lends itself to workhorse usage—lightweight and measuring 4.7" in length.
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