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Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931)
[ACTIVE]

The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
17, No. 5, pp. 749–765
Abstract
This paper deals with the dependence of the quality of variable width recording on the conditions of exposure and development. When the widths of the images employed in recording or reproducing are comparable with the wavelength of the record the exposed portion of the record is not uniformly exposed. The record is attenuated in amplitude as the frequency is increased, and harmonics are introduced whose relative intensities depend on the contrast of development and on the frequency. When the exposure of the record occupies the linear range of the H & D curve, and when the product of the gammas of the negative and the positive is equal to unity, the record is practically free from spurious harmonics. The amount of non-linear distortion is calculated for the case when the over-all gamma is equal to two; and it is shown that Cook's<sup>2</sup> analysis of the aperture effect gives a superior limit to the distortion obtainable by overexposure or by over- or underdevelopment. The effect of the unavoidable non-uniform illumination of the images is considered.
Publication Date
1931-11-01
DOI
10.5594/J07506
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J07506
Author(s)
Donald Foster
Copyright
© 1931 Society of Motion Picture and Television Engineers, Inc.

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Donald Foster; The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07506
Snippet:
Donald Foster; The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07506

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Donald Foster; The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07506
Snippet:
<span class="citation">Donald Foster; <cite>The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931. Available at <a href="https://doi.org/10.5594/J07506" target="_blank" rel="noopener">https://doi.org/10.5594/J07506</a></span>

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Preview:
Donald Foster; The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931
doi: 10.5594/J07506
url: https://doi.org/10.5594/J07506
Snippet:
<li>
Donald Foster; <cite id="bib-10-5594-j07506">The Effect of Exposure and Development on the Quality of Variable Width Photographic Sound Recording</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 5, November 1931); SMPTE, 1931
<span class="doi">10.5594/J07506</span>
</li>

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