Originally Posted by robertrobert
Good points made. I agree with all of them except the one that all panels broken in by the D-nice settings will somehow look different than other ones that are broken in gradually. If that was the case, manufacturers would surely include them. I do believe the slides help speed up the process for then having the display calibrated. In the end either way with enough hours, the phosphorous is going to age sufficiently enough. One experienced calibrator that has done many ISF calibrations on the VT30 recently told me that if he had 10 different VT30's that each one would calibrate differently, from easier to extremely difficult or not even being able to complete due to some underlying issue. Basically due to how Panasonic implemented the hardware for the color control along with VT30's being manufactured at various Panasonic manufacturing sites that use parts sourced from different sources makes one VT30 different from another one. He basically said he doesn't advertise settings he's done knowing this along with each person's viewing environment (lighting etc.) has a huge effect. So seems reason why some have posted various settings they prefer.
No matter really since we're all in the same boat waiting to see if Panasonic will really address the color / luminous issue or not. I sure hope they do.
Since I've seen no data on how each individual panel measures when it comes off the assembly line, I can't make any accurate assessment of what your calibrator says in terms of his belief that the panels are all radically different.
(One would think Panasonic must have some sort of performance parameters every set has to meet before being sent out into the world. If the variances are really that extreme, that doesn't speak well for the precision of their quality control.)
Here is an alternative hypothesis: Perhaps it is the individual use history of each television at the time of calibration that may be the dominant independent variable that affects each calibration attempt.
We'll never know for sure until someone does a controlled study where they take virgin panels, break then in identically and then calibrate them. (Not holding my breath, but it would be interesting to see!