This lens was checked, tested and adjusted in specialist repair workshop. Palpable friction during sharpening (possible particles), but it has no meaning for the taking a photos. Only causes discomfort. (1:30-1:40) check my video

Lens can be perfect for person who takes a photos in the field and do not worry about visual appearance. Excellent glasses !!

NO FUNGUS, no matte surface of the front lens,  no haze, small piece of dust inside (check photos) of the back lens will not affect of the picture quality. NO OIL ON BLADES. CAMERA MOUNT: M42