SIST ISO 1230:2008 PDF
Photography - Determination of flash guide numbers for electronic flash equipment
Photography - Determination of flash guide numbers for electronic flash equipment
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Издание:
- ISO 1230:2007
- ICS:
- 37.040.10
- Технический комитет:
- GRT - Graphical technology
ISO 1230:2007 specifies the definition and determination of the ISO guide number of electronic flash equipment. It does not specify the definitions and measuring methods for the light output of electronic flash equipment, which are specified in ISO 2827.
Abstract
Overview
ISO 1230:2007 - Photography - Determination of flash guide numbers for electronic flash equipment - defines the (GN) used in flash photography and specifies how to determine it for electronic flash units. The standard explains the physical basis of guide numbers, provides the primary calculation linking flash output to guide number, and gives rules for product designation (rounding and units). It does cover light‑output measurement methods (these are defined in ).
Похожие стандарты
Стандарты, упомянутые в описании