The Contract Proof - 2000

To achieve a 50-percent tint by four-color dithering, half of the paper area is covered with droplets of full-strength ink. In the six-color process the two magentas (light and dark) are blended to create the 50-percent tint. The presence of the lighter ink around each darker droplet reduces the apparent contrast between white paper and the darker ink, making the droplet pattern much less visible.