This link has been posted in other threads - but it supplements nicely the information in this sticky for the more curious -IMO -- If you left click on the column headings a technical descriptions of the adjustments comes up in a java window -they go beyond the brief info usually posted in the HighDefforum on the parameters involved.
http://www.isfforum.com/chart/ISFChart.htmfor instance - this is
part of the explanation of grayscale adjustments
Quote:
...To calibrate a display to any color of white requires, at minimum, the ability to adjust two of the three primary colors (red, green and blue) that combine to create grayscale. Depending on the display, there may be three color controls for the dark end of the grayscale range (typically referred to as “cutoffs” or “bias”) and three for the white end (“drives” or “gains”), but controls for at least two colors is required for color temperature adjustment. It is necessary to have these same controls for both the black end of the grayscale range (“black level” or “brightness”) and the white end of the range (“contrast,” or “picture”). These “cutoff” and “drive” controls are adjusted until the best possible color temperature tracking is achieved across the entire range, from video black to peak white. The labels used for grayscale adjustment controls vary widely among manufacturers.
Color Temperature Tracking
Color temperature tracking relates to the ability of a display to maintain the same color temperature as the intensity of light changes.
Pitfalls
D6500
A common misunderstanding is that D6500 and 6500 Kelvin are the same thing, but this is not true. 6500K is a line on the CIE chart that runs from “reddish purple” up through the Black Body Curve and through the “yellowish green” range; on the other hand, D6500 is a specific point on that 6500K line, relating to precise “x” (.3127) and “y” (.329) coordinates on the CIE chart....
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