BS ISO 1230:2007
Current
The latest, up-to-date edition.
Photography. Determination of flash guide numbers for electronic flash equipment
Hardcopy , PDF
English
31-03-2008
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Calculation of the guide number
4 Designation of guide number
Annex A (informative) - Conversion calculation of the
ISO guide number from metres into feet
Annex B (informative) - Explanation of guide number formula
Bibliography
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