CurtPalme.com Home Theater Forum

[EvilMonkey]

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hello,

after reading your most excellent guide to calibrating tv sets and projectors with HCFR, I wanted to calibrate my new tv with HCFR and my i1Display Pro.

I first calibrated contrast and brightness using my DVE bluray, followed by overall display brightness, calibrating the display to 100cd/m². after that I tested several color temeperature presets and tried to calibrate the greyscale. despite the 2-point-correction I was able to achieve a pretty satisfying result.



I had to lower gamma to -2 to reduce luminance, sadly still only getting it to 2.05 instead of 2.2. I don't know how to further optimize my settings to achieve a better gamma value.

the bad part now is color. no matter how often I try, I can't get primary colors to match the CIE chart. primary colors only move in a very narrow window and I honestly don't know which x/y combination would be the best. first I tried to get the primary colors inside of the CIE chart, using their respective hue controls. this works to smoe extend., but then I need to set saturation, to move them closer to the sweet spot. often this only reverts the optimization of the hue calibration and displays a picture that's absolutely destroyed in terms of color.

when I optimize luminance and then set hue/saturation for every color, the result is very, very bad. with blue turning to purple, skintones getting way to warm, with blue/purple tinges and many other faults.

this picture shows the CIE chart after greyscale calibration, everything color-related is set to default, including tint. I've followed your HCFR guide as close as possible, but unfortunately I cannot get the primary colors to move close to their CIE optimum. I've marked the ranges where I'm able to move primaries to, using hue and saturation. can you maybe give me a hint where to put them best, if I cannot achieve the CIE optimum?

any help would be geratly appreciated!!!

[winduptoy]

Some Sharp sets are notorious for clipping whites early. Most of them have serious color gamut errors as well...serious enough that there may not be enough adjustment range in the cms menu to correct for it. When setting the primary and secondary colors, make sure you use 75% saturated samples.