ISO 9378:1993
Photography; vesicular microfilm; determination of ISO speed and ISO range
- Standard No.
- ISO 9378:1993
- Release Date
- 1993
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 9378:1993
- Scope
- The principle of the method specified is exposing and processing samples as specified, obtaining density measurements from the resultant images to produce a sensitometric curve from which values are taken and used to determine ISO speed and ISO range. The method applies to vesicular microfilms which have their principal spectral sensitivity in the region of 350 nm to 450 nm and are used to produce negative-appearing images from positive originals and positive-appearing images from negative originals.
ISO 9378:1993 history
- 1993 ISO 9378:1993 Photography; vesicular microfilm; determination of ISO speed and ISO range
