White Screen Normlicht
The ideal solution for colour proofing and evaluation of reflection and transparent copy
Controlline
Quality is Standard
The ISO standard 3664:2000 stipulates the following viewing conditions for the evaluation of colour prints and their reproductions:
- chromaticity coordinates of the reference illuminant x=0,347 und y=0,359 which corresponds to approx. 5000° Kelvin
- colour temperature D 50 corresponds to approx. 5000 K
- colour rendering index of at least RA90
The visual environment shall be designed to minimize interference with the viewing task.: matt-grey (to avoid reflections), low general illumination. It is advised to use a viewing booth with side walls as a protection against surrounding light. The viewing area should be illuminated as evenly as possible (+/- 250 Lux diffenence in teh centre and +/- 500 Lux at the edge of the viewing area)
