A New Color Timer for Motion-Picture Films

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A new device has been developed for the determination of the correct printing exposures for color films. The device accepts a density range test as exposed under the negative scene with average standard exposure conditions. The viewing field under the test positive may be varied in hue to the desired color balance while a condition of constant brightness is automatically maintained. A built-in analog computer calculates the corrections from the standard condition in terms of red, green and blue light for additive printing and cyan, magenta and yellow light for subtractive printing. The variable hue viewing field is surrounded by standard photometric fields to maintain constant eye adaptation. The system enables the color timer to specify correct printing conditions directly from the single test series. In most cases, a fully corrected print is produced directly from the color timing.
Publication Date: 1958-02-01
DOI: 10.5594/J06224
Link: https://doi.org/10.5594/J06224
Author(s): J. W. Stafford, H. L. Baumbach

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J. W. Stafford and H. L. Baumbach; A New Color Timer for Motion-Picture Films, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958. Available at https://doi.org/10.5594/J06224

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J. W. Stafford and H. L. Baumbach; A New Color Timer for Motion-Picture Films, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958. Available at https://doi.org/10.5594/J06224

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J. W. Stafford and H. L. Baumbach; A New Color Timer for Motion-Picture Films, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958. Available at https://doi.org/10.5594/J06224

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<span class="citation">J. W. Stafford and H. L. Baumbach; <cite>A New Color Timer for Motion-Picture Films</cite>, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958. Available at <a href="https://doi.org/10.5594/J06224" target="_blank" rel="noopener">https://doi.org/10.5594/J06224</a></span>

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J. W. Stafford and H. L. Baumbach; A New Color Timer for Motion-Picture Films, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958
doi: 10.5594/J06224
url: https://doi.org/10.5594/J06224

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<li>
J. W. Stafford and H. L. Baumbach; <cite id="bib-10-5594-j06224">A New Color Timer for Motion-Picture Films</cite>, Journal of the SMPTE ( Volume: 67, Issue: 2, February 1958); SMPTE, 1958
<span class="doi">10.5594/J06224</span>
</li>