A prime lens with a focal length of 23 mm is equivalent to 35 mm, with an aperture F: 1.4 that allows for impressive results in difficult lighting conditions, and even special bokeh. Achieving silent and fast focusing, a lens built from 6 groups of 10 elements. 1: Fujifilm X Mount 2: 35mm 3: Aperture Range: f/1.4 to f/16 4: Focusing and Depth of Field Scales