International Organization for Standardization (ISO)
Latest
ISO 26431-1:2008
Scope
This standard 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 this specification to achieve the tone scale and contrast
in the projected image that will correspond to that intended during the mastering process.