A. Schacht Ulm Edixa-Travenar 50mm f/2.8 lens in M42 screw mount. The optics are clean and clear, free of haze, fungus, or separation. Both the aperture adjustment and manual focus operate smoothly. The exterior shows a couple of light scuffs and scratches from age and handling. Features a silver barrel with black trim, textured adjustment rings, and engraved aperture, distance, and depth-of-field scales. The aperture scale is marked from f/2.8 through f/16, with focusing distances shown in feet and meters. The front ring bears the A. Schacht Ulm and Edixa-Travenar names along with the 1:2.8/50 specification. Please confirm mount compatibility with your camera or intended adapter before purchasing. Please examine all photos carefully for cosmetic condition, lens markings, and mounting details.