Pentax-M 100mm f4 Macro
A normal focal length manual focus lens capable of lifesize magnification was produced between 1977 to 1984.
The lens is compatible and used often with a 1.4x-S teleconverter, producing a 140mm f5.6 lens capable of 0.7x lifesize.
Read MoreThe lens is compatible and used often with a 1.4x-S teleconverter, producing a 140mm f5.6 lens capable of 0.7x lifesize.
