Recognised as one of the world's best lenses, the Leica 90mm f/2 Summicron-M delivers outstanding results. Wonderfully designed, the focus ring is finished with a ridged texture for better gripping. The max f/2 aperture provides excellent control over depth of field, and the lens is impeccably sharp from edge to edge, even at its widest. A must have for any professional Leica user.