I agree that producing a full curve is essential, especially since in the ZS, knowing the CI is not a relevant consideration for anything ......the films response to development is relevant along the entirety of the curve, not just by points on the curve connected by a straight line. Not to diminish CI, only that the specific value of CI has no inherent significance in the primary function of the ZS, which, as stated in The Negative, is to support visualization.
Originally Posted by Michael R 1974
I disagree on the extreme contractions statement, shadows can be given added exposure with the "placement", and compensation development used to support that added density in the low values while keeping good separation at the important higher values. I have only accomplished an N-3 contraction, but I have indeed accomplished it through highly dilute developer with hc-110 and reduced agitation, with TMX, albeit at a loss of film speed at EI 50. The preferred neg density range was effectively maintained. But perhaps I'm just misreading your intent on it.
Last edited by CPorter; 01-16-2013 at 08:02 PM. Click to view previous post history.