The Fujifilm 50-140mm f2.8 lens is a high performance, weather-resistant telephoto zoom designed for use with Fuji's X series of compact system cameras. The lens boasts a versatile focal length and a constant f/2.8 aperture making it suitable for a wide range of photographic applications, including sport, travel, wildlife and night time photography. The lens also has the world's first Triple Linear Motor, which uses an inner focusing system to maximise portability and ensure AF operation is quick, smooth and quiet. As with other Fujifilm XF lenses, the 50-140mm offers an all-metal barrel construction and an aperture control ring.