The Fujifilm Fujinon XF100-400mm F4.5-5.6 R LM OIS WR lens is a high-quality zoom lens specifically designed for Fujifilm cameras. With a maximum aperture of f/4.5-5.6, this lens offers excellent image quality and versatility, making it suitable for a range of photography styles. It features both auto and manual focus options, giving photographers greater control over their images. With a focal length range of 100-400mm, this lens is perfect for capturing both wide-angle and telephoto shots. The lens is compact and lightweight, making it easy to carry and use for extended periods of time.