Ken Lee
10-Apr-2006, 19:44
In the Thiocarbamide process, there are 3 basic steps: reduction, washing, and then restoring the image.
In the 3rd step, you control the color balance by varying the proportion of solutions A and B. No problem.. but is there a way to control the basic amount of toning that occurs overall - not the color - or is this basically an "all or nothing" process ?
For example, if you shorten the duration of the first step dramatically, or dilute the first solution, or lower the temperature of the first solution, you will perform less reduction (maybe). Will that result in an image which, when restored via the (3rd) toning stage, is more gray, IE less saturated ?
In the 3rd step, you control the color balance by varying the proportion of solutions A and B. No problem.. but is there a way to control the basic amount of toning that occurs overall - not the color - or is this basically an "all or nothing" process ?
For example, if you shorten the duration of the first step dramatically, or dilute the first solution, or lower the temperature of the first solution, you will perform less reduction (maybe). Will that result in an image which, when restored via the (3rd) toning stage, is more gray, IE less saturated ?