The XF 100-400mm f/4.5-5.6 R LM OIS WR Lens is designed for FUJIFILM X-series mirrorless cameras and provides a 152-609mm equivalent focal length range. Ideally suited for wildlife and sports applications, the versatile telephoto range benefits photographing distant, moving subjects, and is reinforced by a twin linear AF motor for fast performance, as well as five stop-effective optical image stabilization to Minimize the appearance of camera shake. Additionally, a nine-blade diaphragm contributes to a pleasing bokeh quality when working with selective focus techniques. Five extra-low dispersion elements and one Super ED element are used to greatly reduce color fringing and chromatic aberrations in order to produce high clarity and color fidelity throughout the zoom range. Twin linear motors deliver quick, quiet, and smooth autofocus performance that is especially beneficial when working with fast-moving subjects. The lens body incorporates 13 distinct weather seals in 12 locations to protect against dust and moisture, and to enable worry-free use in inclement conditions and freezing temperatures as low as 14°F. Additionally, a fluorine coating has been applied to the front lens element to guard against smudging, moisture, and dust. Zoom-lock switch prevents unwanted zoom creep from occurring and also can be used to maintain the same zoom position while shooting. The included lens hood incorporates a sliding window to allow easier adjustment of rotating filters, such as a polarizer, while the hood is installed.