This lens features all the typical Leica qualities. Even wide open at f/2.8, its sharpness and contrast all the way to the edges of the frame are exemplary, and can be improved only to a minor degree by stopping down. A floating element maintains this quality level throughout, down to the close-up limit of 30 cm (12 in). Compact size, high speed and harmonious wide angle characteristics make this lens a valuable, universally usable tool.