Stouffer Graphic Arts
RZ9 Zone System Chart Specifications
| Zone | Target | Tolerance | % Light Reflection | |||
| I | 1.85 | .07 | 1.57 | |||
| II | 1.65 | .07 | 2.50 | |||
| III | 1.35 | .07 | 5.0 | |||
| IV | 1.05 | .05 | 10.0 | |||
| V | .75 | .04 | 20.0 | |||
| VI | .45 | .03 | 40.0 | |||
| VII | .22 | .02 | 68.0 | |||
| VIII | .12 | .02 | 85.0 | |||
| IX | .05 (base) | .02 | 100.0 |