A telephoto zoom designed for use in trying conditions, Fujifilm's XF 50-140mm f/2.8 R LM OIS WR Lens is a weather-sealed optic spanning the popular 76-213mm 35mm-equivalent focal length range and featuring a constant f/2.8 maximum aperture. Built for Fujifilm X-mount mirrorless digital cameras, this fast zoom further extends itself through the incorporation of a sophisticated lens design, highly effective optical image stabilization system, and a Triple Linear Motor AF system for refined performance.

Comprised of 23 elements in 16 groups, the optical design incorporates five extra-low dispersion (ED) elements and one Super ED element to markedly reduce chromatic aberrations and color fringing throughout the zoom range. Additionally, a Nano-GI coating has also been applied to elements to alter the refractive index in between elements to minimize surface reflections and prevent lens flare and ghosting.