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ISO 6846:1992-ed.2.0

Photography — Black-and-white continuous-tone papers — Determination of ISO speed and ISO range for printing

STANDARD published on 3.12.1992

English -
electronic design (pdf) (88.30 USD)
English -
Print design (88.30 USD)


French -
electronic design (pdf) (88.30 USD)
French -
Print design (88.30 USD)

The information about the standard:

Designation standards: ISO 6846:1992-ed.2.0
Publication date standards: 3.12.1992
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 6846:1992-ed.2.0 :

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.