Aktívna norma | Vydaná: 03.12.1992

ISO 6846:1992-ed.2.0

Photography — Black-and-white continuous-tone papers — Determination of ISO speed and ISO range for printing
(Photographie — Papiers noir et blanc pour images a tons continus — Détermination de la sensibilité ISO et de l´étendue ISO pour le tirage)

Dostupné jazyky: Anglicky, Francúzsky

Dostupné prevedenie: Elektronické PDF, Tlačené

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Podrobné informácie

Označenie: ISO 6846:1992-ed.2.0

Dátum vydania: 03.12.1992

Stránok: 9

Krajina: Medzinárodná technická norma

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Anotácia

Description / Abstract: 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.

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