Why 'more or less stopped using ISO'?

Started Feb 19, 2014 | Questions thread
Luke Kaven Veteran Member • Posts: 5,705
Re: Maybe this will help.

Iliah Borg wrote:

jackdan wrote:

Federal Standard 1037C, the Federal Glossary of Telecommunication Terms (1996)

brightness: An attribute of visual perception in which a source appears to emit a given amount of light.Note 1: "Brightness" should be used only for nonquantitative references to physiological sensations and perceptions of light. Note 2: _"Brightness"_ was formerly used as a synonym for the photometric term_"luminance"_ and (incorrectly) for the radiometric term "radiance."

But I already asked to provide brightness unit. It did not help

Why everyone knows that the fundamental unit of brightness is the "blinkon".

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