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→Missing definition in chromatic adaption section: Formula issue solved, but there are other missing refs/definitions in the example calculation |
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There is no mention of the Ra8 and Ra14 standards. -- [[User:Frap|Frap]] ([[User talk:Frap|talk]]) 14:44, 14 May 2012 (UTC)
:Ra8 seems to be the same as the Ra described in the artivle (averaged over the first 8 colors), while Ra14 should be the same with all 14 colors. BTW the German [[Stiftung Warentest]] uses both the standard Ra and the R<sub>9</sub> (red) index (or maybe an Ra9 equivalent to Ra but also includes TCS9) to judge the color rendition since red color hues are a typical but serious weak point of many fluorescent and LED lamps--[[User:SiriusB|SiriusB]] ([[User talk:SiriusB|talk]]) 20:58, 15 November 2012 (UTC)
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