
PHOTOGRAPHY - ELECTRONIC FLASH EQUIPMENT - DETERMINATION OF LIGHT OUTPUT AND PERFORMANCE
出版:International Organization for Standardization

專家解讀視頻
Specifies methods of measurement and sets standards of performance for light output, ready indication, angle of coverage, recycle time and number of flashes for electronic flash equipment of the single flash type.
BS ISO 2827 : 1988 - Identical
PN 93/N-84520 : 1993 - Identical
BIS IS 14621 : 1998 - Identical
PN 93/N-84520 : 1993 - Identical
IS 14621 : 1998(R2014) - Identical
BS 5841-7(1980) : 1980 - Identical
BS ISO 2827 : 1988 - Identical
BIS IS 14621 : 1998 - Identical
BS 5841-7(1980) : 1980 - Identical
IS 14621 : 1998(R2014) - Identical