 The CP-16 series used a special 12-120mm Angenieux zoom lens with a prismatic viewfinder.The CP-16 used a variety of Angenieux lenses, a favorite among television news photographers was the 9.5 - 57mm zoom with a F1.6-2.2 aperture making it a very versatile camera; an operator could quite literally shoot an interview in a closet.The CP-16R series used a spinning mirror shutter.