Originally Posted by JimP
Your point about being off 2dEs throughout a cube calibration when your profile at 100% would seem to not really matter when taken in isolation but I'd wager that other things may be going on that would add addition dEs such as plasma panel fatigue, meter drift, etc. when running a calibration that takes an hour and a half up to four hours with high end color meters.(too long a sentence
) So it does make sense to get it as accurate as possible as other things will creep into the measurements.
With that said, traditional calibrations wouldn't have as much need since you have only a few measurement point and can pause your calibration and run screen wipes or full screen white patterns to clean up IR.
Since large cube calibrations do take a bit of time to perform, it wouldn't be a bad idea to add the feature where cube calibration periodically pauses while patterns display that would clean up IR and return the display to normal operating temperatures. Although this is mostly a plasma phenomenon, who really knows if OLED or any future tech wouldn't also benefit from this.
Nothing personal, but I think spacediver is right. Brother, it's time to leave it in the past.
Hello, If we include the fact that:
1) There is no standard in Gamma Value
2) You don't know if the displays are used for Blu-Mastering was accurate or how tight was calibrated.
3) What meters / software they used , are you using the same at home?
4) What was the enviroment light conditions during the mastering, do you have the same at home ?
5) What display types they used to verify the content.
6) What peak light output they used, what window patterns they used, did you used the same size or peak during your calibration?
7) What driftings they had to their monitors (since it was used for a lot of times continiously), and your own display drifting.
8) The fact that all displays/projectors are drifitng during the working time, while you see a movie 2-3 hours is operating.
9) Add the off angle problems or LED's, are you viewing from dead center?
10) Add the bad display screen uniformity of the consumer displays.
...after all the above seems like there is no need to try to get the best from your display.... put the movie mode , no calibrating, and all good...
But No, this is about image fidelity, using better tools and software you are getting closer.
Anyone with LightSpace who want to see the difference of 2dE to his setup, he can do the following:
Using a saved profiling file, generate 2 correction LUTs, one with REC709 targets and another one with modified REC709 targets, for example change one xy color cordinates to have 2.0 dE, and after load these LUT's to Lumagen or eeColor, swap the memories and see the difference.