The Asahi Optical company rightly claimed that the history of Pentax
cameras is the history of the 35mm SLR. More than any other
manufacturer, Asahi has been responsible for the 35mm SLR becoming the
universal camera for all serious amateurs and many professionals. They
pioneered many of the technical advances that make the SLR the near
perfect instrument it is today. This story is told by Danilo Cecchi
through the many models produced during nearly forty years.