[Tig] need 18% gray paint

Bob Friesenhahn bfriesen at simple.dallas.tx.us
Sun Jan 30 18:07:15 GMT 2011

It seems that there is far too much technology involved behind the 18% 
gray debate.  What I had heard in the past is that the 18% was based 
on the average brightness outdoors on a sunny day.  This probably 
feeds into many other design aspects such as the design of film.

For TV production, it should be obvious that every production would 
have a different average brightness without some sort of visual (or 
other measurement) reference.  Having uniform production is important 
for TV, and less so for feature films.

Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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