Complex sentence: Mamiya originally achieved fame for its professional medium-format film cameras such as the Mamiya 6, the Mamiya Press series, the RB67, RZ67, and the twin-lens reflex C-220/C-330, used by advanced amateur and professional photographers.
Split into simpler sentences: Mamiya originally achieved fame for its professional medium-format film cameras such as the Mamiya 6 and the Mamiya Press series. It later went on to develop the industry workhorse RB67 series, the RZ67 and the twin-lens reflex C-220/C-330, used by advanced amateur and professional photographers.