BS ISO 6846-1995 摄影技术.黑白连续色调相纸.晒印用ISO感光度和ISO幅距的测定

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标准号:BS ISO 6846-1995
中文标准名称:摄影技术.黑白连续色调相纸.晒印用ISO感光度和ISO幅距的测定
英文标准名称:Photography - Black and white continuous tone papers - Determination of ISO speed and ISO range for printing
标准类型:G81
发布日期:1995/12/15 12:00:00
实施日期:1995/12/15 12:00:00
中国标准分类号:G81
国际标准分类号:37.040.20
适用范围: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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