It's been a while since I've read this thread. I'm glad to see it's still going and that many others have discovered this terrific bargain of a plasma TV. I've got 2 of them now. Also, I'm glad to see that some of the other posters are using or building upon my initial 20-pt greyscale settings and yours as well.
I will remind you and others that although I think using them may be better than the out of the box stock settings for improving your white balance and black levels, simply inputting my settings or yours isn't calibrating your own set. There is a lot of variance in physical components and their tolerances among one plasma panel to another, even within the very same make and model. Those variances alone can account for big differences in readings you might get. There is also a lot of variance in sensor readings among inexpensive colorimeters like the one I used to get my settings.
Keep in mind that I did not adjust my TV by eye. I used a colorimeter and the readings I got were determined by it and the software I used. Admittedly, my colorimeter's red sensors were under-reporting the red levels, so I had to make allowances for that (and it is very common for that model of colorimeter to under-report red, especially as it ages). Nevertheless, my settings were not exactly subjective; they were determined by measuring and adjusting the settings to zero out levels based on the readings my meter gave from the panel. The numbers I input were based precisely on those readings.
Also keep in mind that the inputs on each IRE level interact with the neighboring IRE levels. Therefore, the greyscale adjustment process is highly iterative. Each iteration of the entire greyscale adjustment will likely help you zero in on a more accurate white balance, and correspondingly, black levels across the board. Your third or fourth iteration is likely to look better than your first.
Originally Posted by MovieDad
I did think skin tones looked too green when I first used Will2007's settings, which is why I did not increase the green level/ tint in the color management as he did. I now think my skin tones are very good.
I adjusted red and blue luminance levels only (except for the green level at 40 IRE due to an anomalous reading at that IRE level) in order to adjust the greyscale. I did not adjust or report adjustments to the CMS, which would include adjustments to the saturation and tint of each individual primary and secondary color. The greyscale adjustments are for setting your white point and your black levels only. They are not intended to be adjustments to the color (saturation) and tint of the primary and secondary colors that can be made in the CMS.
You could try going cooler on the color temperature to reduce the yellowing, or shifting the tint more toward red than green. Or change the green and yellow levels in color management.
You could try that, but most professional calibrators will probably suggest that you may do more harm than good if you try adjusting a CMS by eye alone. Our eyes are terrible at "calibrating" without reference to a known and accepted standard. This is partly because our eyes adapt very quickly to the changed colors and soon accept them as "normal." That's why professionals use a known, objective standard and meters to read output by your television panel. A calibrated meter that is working will report consistent results; your eyes will not.
Most of the responses I've read from professional calibrators in the video calibration forum suggest leaving the CMS alone unless you have a good colorimeter and you really know what you're doing. I haven't touched mine yet.
At this point you are probably dealing with the differences between one television and another (or input signal characteristices and another) so you will have to tweak your settings to work with your hardware, room environment, input source and personal preferences.
Yes indeed. I would add that when adjusting the greyscale you are also probably dealing with variance among individual TV panels, even when comparing two TVs of the same make and model, as well as differences in room lighting conditions and surrounding color environments.
Also, TV panels tend to "drift," such that they need re-calibrating every few months or so, depending on usage.
Have you tried the picture wizard? that may be a good way to achieve the final settings for tint and color temperature that you like.
I've never tried it, but it's probably an improvement over the out of the box settings.
I suggest anyone who truly wants to get a better picture out of their set at least do some reading in the video calibration forum at AVS. There are several sticky threads in there that will give you a good idea of the basics of greyscale calibration and color management and how they affect the quality of the picture you perceive. It's pretty eye-opening.
Anyone who doesn't care to go to that trouble can input your settings or mine, or some combination of them, and take their chances at improving their picture over the stock settings. The results are likely to vary a good bit for each poster. Without a meter and software to go with it, however, don't kid yourself that what you are doing is "calibrating." At best, you are guessing by using someone else's readings and inputs.
You're right that it's easy to get caught up in calibrating and adjusting and to forget to enjoy the program material you're watching.