The Viltrox AF 25mm F1.7 is a compact wide prime lens for Fujifilm X-mount APS-C mirrorless cameras, featuring a bright f/1.7 aperture in a slim, lightweight design suited for street, vlogging, and everyday shooting. It provides autofocus and supports firmware updates via USB. Part of Viltrox's Air series for compact Fujifilm X-mount crop-sensor cameras.