Reference number
ISO 20859:2005
ISO 20859:2005
© ISO 2024
International Standard
ISO 20859:2005
Cinematography - Spectral response of photographic audio reproducers for analog dye sound tracks on 35 mm film
Edition 1
2005-06
2005-06
ISO 20859:2005
39786
Published
(Edition 1, 2005)
This publication was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
ISO 20859:2005 specifies the spectral response of the photographic audio reproducer light source and receptor as a unit, including any optical filtering that can be interposed.
The analog sound track formats suitable for reproduction using such a reproducer include the cyan dye-only track (without redevelopment of silver) and both conventional and "high magenta" soundtracks (with redevelopment of silver).
Life cycle
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