HunterLab:The UltraScan VIS is a high-performance color measurement spectrophotometer that measures the full range of human color perception in seconds. It easily measures both reflected and transmitted color as well as transmission haze, and meets CIE and ASTM guidelines for accurate color measurement. Spectral data is reported every 10nm, and tristimulus color calculations are performed from 360 to 780nm as recommended by the CIE.