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The 18% myth 2.

  • From: "Lennart Rydstrm" <clrphoto@xxxxxxxxxx>
  • Subject: The 18% myth 2.
  • Date: Sun, 26 Oct 1997 15:00:56 +0100
Hi
some details went wrong

> Some definitions.
> Std BLACK reads 1.6 in a densitometer and
> std WHITE reads 0.1.
> Range black to white: (1.6 ./. 0.1) =1.5 = 5 full stops. (5x0.3=1.5).

Add
18% gray is the exact middle tone in a 5 step grayscale and equals to logD 0.75.

> You will find CLR homepage on http://algonet.se/~clrphoto/

Sorry I lost the www:s. The accurate adress is:
http://www.algonet.se/~clrphoto/

> -Lennart R
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