This standard specifies the terms for the influence of colour rendition of colour films or filters and a method for determining values for colour contribution index.
DIN 4522-5:1991 history
1991DIN 4522-5:1991-05 Photographic lenses; their influence on colour rendition of colour films; terms, values for colour contribution index
1991DIN 4522-5:1991 Photographic lenses; their influence on colour rendition of colour films; terms, values for colour contribution index