This special lens design features an aspherical lens surface, giving this compact unit outstanding contrast and detail rendition even at full aperture. An accessory brilliant viewfinder #12019 is needed for checking the field of view, whereas focusing and exposure metering are performed through the camera’s own viewfinder. This high-performance lens also makes it possible to work efficiently in cramped quarters. It adds a more dynamic feeling to close-up pictures and it gives landscape photographs significantly more depth. Modified with an 80mm OD outer ring and extended focus ring, this lens is ideal for video shooters looking to leverage superior Leica Optics.