In the recent past I have tested four film/developer combinations using a 31 step stepwedge. On the basis of the measuring values obtained it should be possible to determine clipping points, the dynamic range and the midtone. Am I right? In the manual of the meter there is a diagram that fixes the clipping points at 20 en 245 on a scale of 0-255 respectively. The dynamic range falls between 35 and 230 in this example. Too bad the scale is not given in relative densities.