Moersch VGT Paper Developer 1 Liter - Part C only
C - You should add as much activator as the sum of parts A and B. For example 100ml A + 100ml B + 200ml C. If you add more, the developer will work faster, with less contrast and cooler image tone.
Finisher Blue - if the combination of the A/B/C components should give a cooler image tone, you can add as much Finisher Blue as needed to reach the desired cold tone. 5-10ml is usually enough. If you use more, you should make the developer as a whole somewhat stronger, or else increase the pH-value with the alkali C component.
To one liter water, add ca. 40ml developer (A+B, A+D, A+B+D) and an equal amount of activator. Smaller amount are possible if you extend the developing times.