APS-C | f/1.7 to f/16 37.5 mm (full frame equivalent) Fast and lightweight wide-angle Spindle-type STM autofocus motor 1 ED lens element, 2 ASPH, and 2 HR HD nano multi-coating Minimum focusing distance of 29.97 cm Supports Exif data transmission Capture everyday scenes from a wide perspective with the portable Viltrox AF 25 mm f/1.7 Air XF lens for FUJIFILM X-mount cameras. With a full-frame equivalent of 37.5 mm, this prime lens is ideal for various subjects, such as street scenes, nature, and still life. The autofocus of this lens is controlled by a fast and silent screw-driven STM motor. Its bright maximum aperture of f/1.7, along with its 9 blades, allows you to work in low-light environments and create spectacular bokeh that highlights the subject. Optical aberration and image distortion are reduced thanks to the built-in extra-low dispersion (ED), high refractive index (HR), and aspherical (ASPH) lens elements. Reliable Autofocus for Photography and Video The AF 25 mm f/1.7 Air XF lens effectively reduces focus breathing, greatly benefiting video applications by allowing smoother focus transitions. Eye and face detection is supported with compatible camera systems for better focus accuracy. Design Features Ultra-bright maximum aperture of f/1.7 for working in low-light conditions. Twelve elements in ten groups, including one ED lens, two HR lenses, and two aspherical lenses, to reduce flare and ghosting and improve contrast. Supports electronic aperture control Internal focusing design Minimum focusing distance of 29.97 cm for working moderately close to subjects Extremely compact, weighing less than 198.447 grams. Supports Exif data transmission and firmware updates via USB-C Lens hood with a lotus shape for added protection against impacts and lens flare.