Figure 3. A UCS surface tessellated by hexagons. At the centre of each hexagon is the chromaticity of a trial lens. The scatter of chosen chromaticites is represented by the grey circle with its centre at the intersection of the horizontal and vertical axes, as in Figure 2. The chromaticities of the trial lenses closest in colour are one standard deviation from the centre of the scatter, as represented by the arrow

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The Repeatability of Colorimetry is Precise(ly) as Expected

Amelia Aldrich, Rupal Lovell-Patel, Peter Allen, Arnold Wilkins

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