Designed for the FUJIFILM G-mount GFX camera system, the GF 20-35mm f/4 R WR Lens is a wide-angle zoom offering a 16-28mm equivalent focal length range. Covering ultra-wide to wide-angle perspectives, this zoom is particularly well-suited to landscape, travel, and architecture applications, and the constant f/4 maximum aperture maintains consistent performance throughout the zoom range. A sophisticated optical design pairs a trio of aspherical elements with one aspherical ED element and three ED elements to control both spherical and chromatic aberrations for improved sharpness, clarity, and color accuracy. Balancing the optical assets is an internal focusing mechanism that utilizes a linear AF motor to deliver quick, quiet, and precise focusing performance. A fluorine coating has also been added to the front element to repel moisture and the lens also features a dust-, freeze-, and weather-resistant construction for use in inclement conditions. Additionally, a manual aperture ring is featured for intuitive, tactile adjustment over exposure settings, and a Command position can also be set for camera-based control over the aperture.