ISO 1230:1992
Photography; determination of flash guide numbers

Standard No.

ISO 1230:1992

Release Date

1992

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2007-09

Replace By

ISO 1230:2007

Latest

ISO 1230:2007

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.

ISO 1230:1992 history

• 2007 ISO 1230:2007 Photography - Determination of flash guide numbers for electronic flash equipment
• 1992 ISO 1230:1992 Photography; determination of flash guide numbers
• 1973 ISO 1230:1973 Photography — Determination of flash guide numbers