In the first report, various characteristics of the multi-image camera were studied using the grey scale test pattern. To distinguish from the H & D curve, the density curve obtained by photographing the grey scale test pattern was named Film-CRT curve (F-C curve hereafter). Then it was reported that the F-C curve was dependent upon each of the three variables namely contrast, brightness and camera's exposure time. In the present report, two types of CRT with and without clamp circuit were surveyed by changing contrast while keeping the brightness and exposure time of the camera constant. The result showed that for CRT without the clamp circuit, the F-C curve was intersecting at one point near its shoulder, whereas for CRT with the clamp circuit, the F-C curve instead of intersecting with its shoulder, was converging to a single point, that is, in the case of CRT with clamp circuit, the highest density values for the F-C curve was independent of variation of contrast, hence dependent upon the 2 variables brightness and exposure time.