The new FUJIFILM X-mount Lens features a maximum aperture of F2.8 across the entire 4.1x zoom ratio that covers the focal length range of 17-70mm (full-frame equivalent of 25.5-105mm), and superb optical performance. It is a small, lightweight lens equipped with Tamronfs VC (Vibration Compensation) mechanism to minimize camera shake. The VC mechanism leverages AI technology when shooting video. It is also equipped with the quiet RXD (Rapid eXtra-silent stepping Drive) AF motor and has minimal focus breathing. These features enable videographers to shoot comfortably when using a mirrorless interchangeable-lens camera. For added versatility, the 17-70mm F2.8 offers an exceptional MOD (Minimum Object Distance) of 7.5f at the wide-angle end, Moisture-Resistant Construction and Fluorine Coating. Its 67mm filter size is the same as most TAMRON lenses for mirrorless cameras. It is a highly useful lens that delivers high image quality for photography and videography with its fast F2.8 aperture.World's first fast-aperture standard zoom lens for APS-C mirrorless cameras with the focal length range of 17-70mm (4.1x zoom ratio)The Model B070 has a focal length range of 17-70mm, equivalent to 25.5-105mm on full-frame cameras. It is the first F2.8 fast-aperture zoom lens in the world for APS-C mirrorless cameras to achieve a 4.1x zoom ratio.Outstanding optical performanceThe optical construction of the 17-70mm F2.8 features 16 elements in 12 groups