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Table 4 Measurements with spectro2guide for gloss on two ColorChecker SG charts, produced in 2014 and in 2019

From: Exploring the limits of color accuracy in technical photography

Gloss Black patches White patches
Chart version 2014 25.7–27.0 Gloss Units 20.7–21.7 Gloss Units
Chart version 2019 17.7–19.2 Gloss Units 17.3–19.2 Gloss Units
  1. The columns show the range of values found when measuring on all black patches and on all white patches of the chart