The Leica Summilux-M 50mm f/1.4 ASPH. delivers virtually the same outstanding performance throughout all apertures and focus settings. Whether using selective focus at close range, high-contrast available light applications or an extended depth of field to capture landscapes, this lens handles every situation with ease. Every innovation currently available in lens technology - aspherical lenses, glass with anomalous partial dispersion, glass with a high refraction index and a floating element - has been combined to create a lens that sets the new standard in this focal length class. An extremely fast standard lens that is used a great deal in reportage photography. Its extraordinary speed of f/1.4 permits usable shutter speeds even in poor light situations. This lens has been updated with the "6-bit" coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then (optionally) apply a "final stage" software based vignetting correction (for RAW images the lens used is simply recorded, no change is made). This lens is in excellent condition with only the lightest signs of use. The optics are clean and clear with no marks or scratches. There is an extremely minor amount of dust within the lens. The lens barrel shows only the lightest cosmetic marks. The focus ring is smooth and in great condition. The lens mount is in good condition.