AVS Special Member
Join Date: May 2008
Location: San Francisco - East Bay area
Mentioned: 3 Post(s)
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Quoted: 187 Post(s)
I don't understand why whiter than white would influence a meter purchase in any way. Whiter than white has nothing to do with anything you need a meter for. You calibrate displays that don't display whiter than white the same way you calibrate displays that do show whiter-than-white.
The value of whiter-than-white is probably overstated. Over the years I've reviewed several displays that didn't show whiter-than-white and the picture was not noticeably compromised. Primarily because whiter-than-white pixels tend to be somewhat randomly distributed and they don't make up large objects or areas. 100% white is the reference level and pixels above 100% white exist only for "headroom" that allows for some "overage" without clipping everything to the same level. Where to whiter-than-white pixels appear? Primarily in what is called spectral highlights... these encompass, most often, bright reflections from chrome or a crystal chandelier or sun reflecting on the surface of water, etc. If the display clips at 100% white (235), there's really no image information lost and those strongly reflected highlight still look appropriately bright if 235 is the highest white level the display shows.
BUT... white levels of 101%-109% (236-254) are "legal" and they do appear in many movies and if the TV will resolve levels above 100% you shouldn't adjust it so that the steps above 100%/235 disappear. If the TV doesn't show levels above 100%/235 it's not the end of the world and will ultimately have little or no visible repercussions.
"Movies is magic..." Van Dyke Parks
THX -- ISF -- HAA