The Fuji GF 23mm f4 R LM WR Lens is compatible with the Fuji GFX 50S Medium Format Camera. Features a Nano GI Coating, linear focus motor as well as ED and super ED. This low-distortion super-wide angle lens is perfect for landscape and architectural photography. High-resolution performance going right to the edges, providing sharp depiction produces minimal distortion. It features fast and quiet AF due to a linear motor, is dust and weather resistant, and is capable of operating in environments as cold as -10C.