Cinematography. Spectral response of photographic audio reproducers for analog dye sound tracks on 35 mm film Ingestion-build-83346 BS 4267-4 is the fourth

BS 4267-4 is the fourth part of the BS 4267 multi-series and discusses the determination of sulphated ash

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Cinematography. Spectral response of photographic audio reproducers for analog dye sound tracks on 35 mm film Ingestion-build-83346 BS 4267-4 is the fourth1 Scope This International Standard 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).