This extremely compact lens, which retracts into the camera housing, stems from the tradition of the legendary Elmar lenses, a major factor in the success of the first Leicas. The classic four-element design has been continually enhanced in its optical and mechanical components over the decades, in line with advances in technology. The current version has been brought up to an uncompromisingly modern standard. The use of high-refraction glasses and the new computer-aided optical design are key factors in its outstanding overall performance. This classic with its 45° coverage angle is closest of all to human eyesight. That's why the perspective appears so natural in the images it produces. Its medium speed, small size, and light weight make this lens a practical choice for many uses.