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Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930)
[ACTIVE]

A Light Intensity Meter

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
Ever since the beginning of photography, the judging of light value has been one of the great problems, to the photographer or camera man. In many cases in the past as now, the person responsible for taking of pictures is required to judge light values using his naked eye as an indicating means. His accuracy or ability to do this is the product of his appreciation and his experience as received through this natural indicator. The unassisted eye at its best is considered unstable with a possible error of 100 percent or more from day to day when used as a light intensity measuring instrument. It is unreasonable to expect that two or more men would come very close in a simultaneous check. In order to assist the eye in measuring light and to obtain consistent results, several types of photometers have been developed. In most cases, these instruments are rather awkward to use because they require a comparatively slow process of matching of light intensities, to obtain a reading. Therefore, they might be classed as laboratory equipment, from a studio standpoint, rather than practical and portable direct reading indicators.
Publication Date
1930-03-01
DOI
10.5594/J13086
Link
https://doi.org/10.5594/J13086
Author(s)
J. L. McCoy
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J13086.json

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J. L. McCoy; A Light Intensity Meter, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930. Available at https://doi.org/10.5594/J13086
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J. L. McCoy; A Light Intensity Meter, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930. Available at https://doi.org/10.5594/J13086

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J. L. McCoy; A Light Intensity Meter, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930. Available at https://doi.org/10.5594/J13086
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<span class="citation">J. L. McCoy; <cite>A Light Intensity Meter</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930. Available at <a href="https://doi.org/10.5594/J13086" target="_blank" rel="noopener">https://doi.org/10.5594/J13086</a></span>

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Preview:
J. L. McCoy; A Light Intensity Meter, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930
doi: 10.5594/J13086
url: https://doi.org/10.5594/J13086
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<li>
J. L. McCoy; <cite id="bib-10-5594-j13086">A Light Intensity Meter</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 14, Issue: 3, March 1930); SMPTE, 1930
<span class="doi">10.5594/J13086</span>
</li>