DIN 4512-9-1993《照相感光度测定》
The document specifies the spectral conditions for the measuring of several types of optical densities used in photography, to evaluate processed black-and white or coloured images of films, papers and plates.
The document specifies the spectral conditions for the measuring of several types of optical densities used in photography, to evaluate processed black-and white or coloured images of films, papers and plates.