Fujifilm's GFX line of medium format mirrorless cameras helped to rewrite the paradigm of the format with a combination of aggressive prices and modern features traditionally reserved for smaller sensor sizes. The GF 20-35mm f/4 R WR offers GFX users an enticing wide angle focal length range suitable for genres like landscape photography, and this great video review takes a look at the lens and the sort of image quality and performance you can expect from it in practice.