Fujifilm's GFX line of medium format cameras and lenses have quickly expanded to become impressively versatile, capable of tackling applications traditionally reserved for full frame and smaller formats. The GF 55mm f/1.7R WR continues that trend by offerings an unusually wide maximum aperture along with a neutral and flexible focal length, making it an attractive option for many different uses. How does it hold up in real-world usage? This excellent video review takes a look at the sort of performance and image quality you can expect.