This 23mm f/1.4 lens (35mm equivalent) delivers bright low-light capability with STM autofocus and an optical design using two ED and two HR elements to suppress aberrations. A tactile manual aperture ring with an 'A' position and a micro-USB port for firmware updates enhance handling and longevity in a compact 490g body. It is best for Fujifilm X-mount shooters who need a fast, affordable wide-angle for environmental portraits and low-light street scenes.