The versatile Leica APO-Macro-Summarit-S 120mm f/2.5 lens is suited for many applications due to its superb close-up and telephoto capabilities. With maximum performance even at full aperture settings. With the added bonus of the Leica-designed microprocessor for precise autofocus and iris diaphragm control, this incredible piece of kit will never leave you wanting. The focus ring has just the right amount of drag, letting the photographer override the autofocus at any time.