Re: Light indicator band issues.
Re: Light indicator band issues.
- Subject: Re: Light indicator band issues.
- From: Graeme Gill <email@hidden>
- Date: Mon, 18 Nov 2013 23:32:47 +1100
Axel Robert wrote:
> Dear all,
>
> I experience some problems with different light indicators like :
>
> PANTONEĀ® LIGHTING INDICATOR Stickers
>
> PIA/GATF RHEM Light Indicator
>
> Ugra/Fogra light indicator
Those indicators seem incredibly vague in what they are supposed to do,
and under what conditions they "work".
The Pantone indicator talks about "being viewed under a 5000K (degrees Kelvin)
standard light source.", and the others use similar terminology,
but this is nonsense - such indicators depend on the colors being visual
metamers under a certain light _spectrum_. Merely being the right color
temperature is not sufficient to guarantee a match.
Graeme Gill.
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