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Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925)
[ACTIVE]

Infra-Red Photography in Motion Picture Work

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
Photographs by infra-red light were first made some years ago by Professor R. W. Wood, of Johns Hopkins University. He noted that the most striking features of these pictures were that blue skies were rendered very dark, whereas green foliage was rendered very light. Photographs by infra-red light with these characteristics have remained more or less of a scientific curiosity every since. In Professor Wood's day the available photographic sensitivity in the infrared was very low and the required exposure very long; furthermore, no one had pointed out a practical use for this effect. More recently Haller has announced an infra-red sensitizer which gives considerably increased speed and this, in combination with the Technicolor film sensitizing technique, has made possible a film semitized in the infra-red which can be produced uniformly and economically in any quantity, large or small, and of sufficient speed to allow of good exposures in motion picture work.
Publication Date
1925-09-01
DOI
10.5594/J10347
Link
https://doi.org/10.5594/J10347
Author(s)
J. A. Ball
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J. A. Ball; Infra-Red Photography in Motion Picture Work, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925. Available at https://doi.org/10.5594/J10347
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J. A. Ball; Infra-Red Photography in Motion Picture Work, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925. Available at https://doi.org/10.5594/J10347

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J. A. Ball; Infra-Red Photography in Motion Picture Work, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925. Available at https://doi.org/10.5594/J10347
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<span class="citation">J. A. Ball; <cite>Infra-Red Photography in Motion Picture Work</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925. Available at <a href="https://doi.org/10.5594/J10347" target="_blank" rel="noopener">https://doi.org/10.5594/J10347</a></span>

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Preview:
J. A. Ball; Infra-Red Photography in Motion Picture Work, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925
doi: 10.5594/J10347
url: https://doi.org/10.5594/J10347
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<li>
J. A. Ball; <cite id="bib-10-5594-j10347">Infra-Red Photography in Motion Picture Work</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 9, Issue: 22, September 1925); SMPTE, 1925
<span class="doi">10.5594/J10347</span>
</li>