Quote Originally Posted by Photo Engineer View Post
I should amend the above regarding tones and half tones to exclude the dot processes of halftone images which are not within the scope of this. It is an entirely different matter than should not be misconstrued to be included in either my comments or Patricks.

Yes indeed. I was thinking of the fact that we might read the densitometer to 0.01 or less density increment which might translate on the calculator or slide rule to a small fraction of a Zone. Some who slip into that usage should remember that when you encounter less than half a tone in music it is a serious mistake, a passing tone in a glissando on a stringed instrument, or some soon to be forgotten experiment in modern music. Not in any case any sound that would come out of Ansel Adams' well tuned piano.