Picture quality, speed, and particularly important for professional use a robust construction are the main advantages of all APO-Summicron-SL-Lenses. The APO-Summicron-SL-Lenses were designed from scratch for the mirrorless SL-System. That means that the optical and sensor design, as well as the imaging process match perfectly to achieve the highest quality. They offer maximum detail transfer and pure colour reproduction from the center to the edges, over all distances and all F-stop settings. Leica APO-Summicron-SL-Lenses already achieve extremely high detail contrast close to diffraction limit, which makes them particularly suitable for the creative use of planes of sharpness and unsharpness and the distinct isolation of subject details. Thanks to their shallow depth of field and exceptional imaging performance, every single lens guarantees the special look for which Leica photography is renowned.