The Global Color Systems GC361T
📊 Core Measurement Specs

• Density range: 0.0 to > 6.0 D

• Dot area: 0% to 100% (± dot)

• Measurement capability: Density + dot area on film (positive & negative)

• Responses: X-Rite Ortho, Visual, and UV

🎯 Accuracy / Repeatability

Repeatability

• Ortho/Visual (2–3 mm aperture):

  • ±0.01 D (0.0–5.0 D)

  • ±2% (5.0–5.5 D), ±3% (5.5–6.0 D)

• Ortho/Visual (1 mm aperture):

  • ±0.01 D (0.0–4.5 D)

  • ±1% (4.5–5.0 D)

• UV (3 mm aperture):

  • ±0.01 D (0.0–3.5 D)

  • ±1% (3.5–4.0 D)

Linearity

• ±0.02 D (low densities), increasing to ±1–2% at higher densities

Zero stability

• ±0.02 D