[old_tv_nut]

A Plumbicon or Saticon would have much less lag than a vidicon, but still some. It would also rival the sensitivity of an image orthicon, but maybe only with a solid state preamp. The Saticon camera circuits I saw in the early 90s used a low noise FET preamp soldered directly to the faceplate, and the circuit somehow used feedback to cause the target capacitance to compensate its own frequency rolloff (details are foggy in my memory).