Quote Originally Posted by Stephen Benskin View Post
Bill, something that I find very interesting is how the compression of the shadows is the opposite of what is desired visually. Munsell's studies found that the eye compresses darker tones, so in order for them to appear equally spaced, they needed to have more separation than the luminances alone would indicate.
On my Zone Sticker for the Master II, the Zone 0 through III are all "black" basically. But only IX is "white". The Zones VIII through IV do all the work. Everything below plunges into shadow.

Maybe the reason compression in the shadow Zones works is that people are not looking in the shadows, their eyes gravitate to the lighter tones.