Why 'more or less stopped using ISO'?

Started Feb 19, 2014 | Questions thread
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crames Regular Member • Posts: 192
Re: Maybe this will help.

bobn2 wrote:

What does 'white' mean?

White is the "reference white" used in the Lightness calculation.

For CIELAB it is usually CIE Illuminant D50 reflected from a perfect diffuser. It can also be a light source, or the media white.

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