ISO 6846:1992
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ISO 6846:1992
13355

Abstract

 Preview

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.


General information 

  •  :  Published
     : 1992-12
  •  : 2
     : 9
  •  : ISO/TC 42 Photography
  •  :
    37.040.20 Photographic paper, films and plates. Cartridges

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std 1 58 PDF
std 2 58 Paper
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