Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949)

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Metallic-Salt Track on Ansco 16-MM Color Film

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: In 16-mm Ansco color motion picture film the silver is removed from the image, leaving dye in the three layers. The combination (maximum density) of the subtractive colors has a visual density of about 3, which is sufficient to produce good screen contrast. The maximum density, while being visually opaque, has a transmission band in the near infrared in the region of 8000 angstrom units, which is the most sensitive region of the cesium-type phototube. While for many purposes this may not be objectionable, it can be overcome by differentially processing the film so that the sound-track modulations are opaque to red light without affecting the dye picture area. This paper describes a method by which differential treatment of the sound track area can be accomplished.
Publication Date: 1949-07-01
DOI: 10.5594/J17809
Link: https://doi.org/10.5594/J17809
Author(s): J. L. Forrest

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J. L. Forrest; Metallic-Salt Track on Ansco 16-MM Color Film, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J17809

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J. L. Forrest; Metallic-Salt Track on Ansco 16-MM Color Film, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J17809

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<span class="citation">J. L. Forrest; <cite>Metallic-Salt Track on Ansco 16-MM Color Film</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J17809" target="_blank" rel="noopener">https://doi.org/10.5594/J17809</a></span>

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J. L. Forrest; Metallic-Salt Track on Ansco 16-MM Color Film, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949); SMPTE, 1949
doi: 10.5594/J17809
url: https://doi.org/10.5594/J17809

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<li>
J. L. Forrest; <cite id="bib-10-5594-j17809">Metallic-Salt Track on Ansco 16-MM Color Film</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 1, July 1949); SMPTE, 1949
<span class="doi">10.5594/J17809</span>
</li>