Pertains to all conventional silver-halide contact and enlarging papers used for continuous-tone or pictorial photography. The method is based on exposing and processing samples, performing density measurements from the resultant image to produce a sensitometric curve from which measurements are taken and used to determine ISO speed and ISO range values. Annexes A to C deal with the relationships between the paper range and the effective density range of the negative, log exposure range and contrast, and log exposure range and average gradient.
État actuel: PubliéeDate de publication: 1992-12
Edition: 2Nombre de pages: 9
Comité technique: ISO/TC 42 Photographie
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|std 1 61|
|std 2 61||Papier|