ISO 26431-1:2008 (R2023)

ISO 26431-1:2008 specifies the absolute luminance level, white point chromaticity and luminance uniformity of the reflected screen light for the presentation of motion pictures by projectors with digital light engines in review rooms and commercial cinemas. It is the purpose of ISO 26431-1:2008 to achieve the tone scale and contrast in the projected image that will correspond to that intended during the mastering process.