The Fujifilm XF 10-24mm f/4 R OIS Lens is a wide-angle zoom providing a 35mm-equivalent focal length range of 15-36mm when used with Fujifilm APS-C-sized mirrorless digital cameras. A constant f/4 maximum aperture maintains consistent illumination throughout the zoom range and the Optical Image Stabilization system helps to minimize the appearance of camera shake when working with longer shutter speeds. An internal focusing system, and the use of a stepping AF motor, ensures quiet, smooth, and precise focusing capabilities that are ideal for both still and video applications.