Pentax-M 50mm f1.7
The standard issue normal focal length manual focus lens in the M-series, produced 1977 to 1984.
The lens is compatible and sometimes used with a 1.4x-S teleconverter, producing a 70mm f/2.4 lens.
Read MoreThe lens is compatible and sometimes used with a 1.4x-S teleconverter, producing a 70mm f/2.4 lens.
