Originally Posted by lovingdvd
Cine4home got results on a HD750 pre-production unit using the CMS that are pretty darn close. From http://www.cine4home.de/news/JVCHD75...ew.htm#Update:
The secondaries seem off a tad. I'm not sure it that's because he ran out of time and decided to go with that in lieu of lots more experimenting (he did mention working with the CMS was a bit challenging), or if its because that was the best he could get it without causing something else to shift. Either way this is pretty darn close and not likely noticeable.
Of course the one thing we cannot gauge from the CIE chart is Y, and whether he could dial Y in spot on as well to have a very good dE for all the colors. I presume so since he did not say otherwise, and actually said he had to do a good deal of work with regards to getting all this in balance.
I have a few general questions about the nature of CMS, and apologies in advance if they aren't phrased in a technically correct way. (Fyi, I'm having Jason perform an initial calibration and after a few hundred hours on the bulb I'll have an ISF pro do an in-home calibration if needed. But, I'm curious about this.)
The JVC website (RS20, tech specs) says this about the CMS: "The DLA-RS20 features color management that interpolates colors individually by R, G, B, C, Y, or M, in three separate axes of color phase, chroma saturation and brightness. Up to three customized color settings can be stored for future use."
1. Does this statement imply that adjustments made to each of these colors (or at least to the primaries) will not affect the settings for the other colors, and thus that at least in theory each color can be dialed in perfectly independent of the others?
2. If "yes," does the "challenging" nature of the CMS that Cine4Home mentioned suggest that the adjustments are not truly independent of one another?
3. Do other pjs have CMS that allow such truly independent adjustments, or is that impossible for any CMS: that adjustments to one color inevitably affect the others and thus you have to "tweak back and forth" to achieve a final "proper balance"? Do high end video processors (e.g., Lumagen models) allow it? (No; I'm not planning to get one; not with the RS20).