This 90mm f4 Macro-Elmar lens is a unique short telephoto prime from Leica. It can be defined by its retractable design and compatibility, with the separately available Macro-Adapter-M allowing for high-performance close-up shooting. The key optical design consists of four effective elements in four groups - maintaining perfect sharpness and illumination throughout the full aperture and focal length ranges. Contrast and colour fidelity are guaranteed with the implementation of the multi-layer anti-reflective coating to control ghosting lens flare. Incorporating Leica's well-renowned manual focus design, this 90mm lens permits working with subjects as close as 0.79m away with an efficient reproduction ratio of 1:6.7. As an extremely versatile telephoto lens - this 90mm f4 macro is ideally suited to travel photography for capturing key details in landscapes, discreet portraiture from an extended distance, and dynamic close-distance photography with the separately available Macro-Adapter-M.