Used Carl Zeiss Jena Tevidon 16/1.8 lens in brass version casing. Casings of this lens looks fine, with just light signs of use, but it has some micro dents / cracks on filter ring and some signs of use on round platter with writting. Just check pictures for better understanding of it's visual condition. They do not have serious glass issues, so i do not see haze, fungus, separations, cracks or scratches. As most old lenses, they can have some micro dust inside, some micro marks/spots on coatings and maybe few micro cleaning marks here and there. Focusing is good, smooth, with no issues. Aperture ring works fine. No grease on aperture blades, but aperture blades have some marks on them, i do not know, what those marks are. Someone cut this lens genuine brass mount to 'slim' c-mount mount, so it should fit now to 90% c-mount adapters on the market and focus to infinity. My price is 199.99 USD or i can accept 'best offer' price, if it is good for me. This is 'as is' auction, so no returns or exchanges, all sales are final. I'm also not an expert in lenses, so i've described this lens the best, i could. Thank you !