Fifteen years ago, the camera world was in an extremely subtle period. On one hand, the increasing maturity of autofocus technology was promoting the popularization of SLR cameras. On the other hand, however, most people had not yet sensed the prelude to the tide of the digital era. It was against this backdrop that the Pentax MZ series film SLR cameras were born. Despite receiving much acclaim, they could not stop the trend of film cameras gradually fading away.