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- From: oberman@ptavv.llnl.gov
- Newsgroups: rec.video
- Subject: Re: "Trinitone"
- Message-ID: <1992Nov19.144341.1@ptavv.llnl.gov>
- Date: 19 Nov 92 22:43:41 GMT
- References: <71921114153917.0004861036NA2EM@mcimail.com> <Bxu2Lu.7o@ra.nrl.navy.mil> <1992Nov17.154940.25565@bnr.ca>
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-
- In article <1992Nov17.154940.25565@bnr.ca>, dwjz@bnr.ca (Doug Zolmer) writes:
-
- > I played with the Trinitone adjustment on my friends 4 year old XBR, and
- > I couldn't see any difference.
- >
- > The Panasonic GAOOs with the superflat screens have a color temperature
- > adjustment that adjusts between 'Cool', 'Normal' and 'Warm'. I can see
- > only a very slight difference in the whites.
-
- I think something needs clarification here. The human eye/mind perceives quite
- a range of colors as "white" and it's really about impossible to tell the
- difference between 6500K and 7500K with the naked eye. (At least mine.) What is
- perceived is a feeling of extra brightness, or "Whiter than white" in terms of
- it's contrast with dark areas.
-
- The real problem is in the rest of the color spectrum. The imperceptable shift
- in white tempurature can be VERY percepable in some other colors. And if the
- white is off, all colors will be off. It really takes a CIE color chart to
- understand what happens.
-
- I suggest a look at the latest TPV which includes a CIE chart and a good
- description of what it means and how it relates to what you see when white is
- not correct.
-
- R. Kevin Oberman Lawrence Livermore National Laboratory
- Internet: koberman@llnl.gov (510) 422-6955
-
- Disclaimer: Don't take this too seriously. I just like to improve my typing
- and probably don't really know anything useful about anything.
-