Late HELIOS 44M-4 F2/58mm (USSR Carl Zeiss Biotar Clone). MADE IN USSR Serial No: 8196739 (1981 production) M42 screw fit mount Suitable for SLR or DSLR Good condition Clean smooth snappy aperture and clean glass (minor wispy dead / inert fungus to outer edge no affect to optics) smooth focus. Minor ding on filter housing still accepts filters Very famous lens known for its pin sharp capability / great contrast with natural colour rendition not to mention its swirly bokeh party trick! …please see sample photos in gallery.
