Compatible with Fujifilm X mount full frame auto focu mirrorless cameras, such as Fujifilm X Mount Mirrorless Cameras X-S10 X-S20 XT2 XT4 XT5 XT10 XT20 XT30 XT50 X-A2 X30 X70 ect Eye AF is amazing even at far distance, the classic 85mm portrait lens with a wide aperture of f/1.8, the lens can capture beautiful photos with smooth background blur effect, even in dark environment. Excellent vignette control and purple fringing diffusion 85mm lens is a AF STM stepping motor and NanoDrive Auxiliary System auto focus lens, helps to reduce camera shake and helps capture images with less noise, support high resolution 8K, zero distortion and zero breathing, support video shooting The lens constructure is 8 groups, 11 elements, makes the lens capable of delivering sharp images, suitable for a wide range of other subjects, including selective architecture, landscapes, portrait, short range sports and theatre photography, very light and easy to carry If you experience autofocus failure, you can upgrade the firmware online. Meike lenses use a Type-C interface, and the latest firmware is available for download from the Meike official website（Real-time updates）, only supported on Android devices, not Apple (Mac). (Free Updates) ◆Product features Drive system: SMT stepper motor Focus type: automatic/manual Aperture type: automatic/manual ◆Image quality performance Breathing effect: zero breathing Distortion control: zero distortion Glare suppression: good Ghost suppression: good Dispersion purple fringing: good (slight at extreme high contrast) Vignette control: excellent Resolution: 8K Color reproduction: neutral