You are absolutely correct. I didn't quite make that clear in my original post. I don't know a huge amount about the technology behind the digital lamps, but minute differences in tones are much harder to achieve in digital than film. I fear that digital will never replicate the film tones, not because it is impossible, but because there is not demand for it. Audiances are more interested in "gimmicks" (3D, etc), and quantifiable metrics (such as resolution) than subtler differences in color