Active standard | Published: 23/09/1993

ISO 9378:1993

Photography — Vesicular microfilm — Determination of ISO speed and ISO range
(Photographie — Microfilm vésiculaire — Détermination de la sensibilité ISO et de l´étendue ISO)

Available languages: English, French

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 9378:1993

Publication date: 23/09/1993

Pages: 9

Country: International technical standard

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Anotation

Description / Abstract: 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.

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