It is part of the Takumar line of lenses, produced by the company that would become Pentax. Still to date, these lenses are highly regarded for their built quality, smooth focus and aperture rings. They were produced for film cameras in M42 mount and can be adapted as per below chart.
|SLR/mirrorless compatibility||Canon M, RF, EF, Sony E, Fuji X, Micro Four Thirds, Panasonic SL|
|Film camera compatibility:||Pentax Spotmatic, Petri, Yashica, Helios, all M42 mount cameras|
Buy with confidence ! All lenses come with caps and are fully functional. No dust, fungus, scratches or any internal issues unless mentioned in the "remarks" box.