ISO 1230:1992Withdrawn

Photography — Determination of flash guide numbers

Photographie — Détermination des nombres-guides des appareils à éclairs

This edition has been replaced by ISO 1230:2007.

Abstract / scope

Specifies a method for measuring the reflector factor. Contains formulae for calculating the ISO guide number for flash lamps (with and without integral factors resp.). Gives terms and definitions.

Life cycle

Replaces

ISO 1230:1973WithdrawnPhotography — Determination of flash guide numbersInternational Standard · Published 1 Jun 1973 · ISO/TC 42

Replaced by

ISO/WD 1230Deleted (project abandoned)Photography — Determination of flash guide numbersInternational Standard · ISO/TC 42 ISO 1230:2007PublishedPhotography — Determination of flash guide numbers for electronic flash equipmentInternational Standard · Published 22 Aug 2007 · ISO/TC 42