Knut Olav Sunde: ISOM/2000 recommendations for four colour printing
ISOM/2000, Halftone screen recommendations
  • Frequency
    • To ensure good legibility for thin lines and small details
      60 l/cm or 160 lpi

  • Angles
    • To avoid moiré patterns:
      Cyan15°
      Magenta75°
      Yellow0°
      Black45°

  • Stochastic screens recommended
    • where available