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SMPTE Journal ( Volume: 99, Issue: 1, January 1990)
[ACTIVE]

35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
Disclosed is a patented sprocket assembly which allows 35mm projectors, or other film handling devices, to readily convert to accomodate either a 4-perf, or 3-perf pulldown 2mode. After an initial, fairly inexpensive modification to virtually any projector currently in use, including production interlock units, the changeover is simple, quick, and exact, whether from 4 to 3-perf mode, or vice-versa. Applications of the inclusion of a frequency synthesizer, allowing speed variances of 24 fps to 30 fps, as an immediate option, are also demonstrated. This combination could prove to be extremely useful, presently for television and for future proposed HDTV systems applications.
Publication Date
1990-01-01
DOI
10.5594/J16774
Link
https://doi.org/10.5594/J16774
Author(s)
Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, Mike Casper
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J16774.json

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Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; 35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J16774
Snippet:
Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; 35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J16774

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Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; 35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J16774
Snippet:
<span class="citation">Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; <cite>35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma</cite>, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990. Available at <a href="https://doi.org/10.5594/J16774" target="_blank" rel="noopener">https://doi.org/10.5594/J16774</a></span>

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Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; 35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990
doi: 10.5594/J16774
url: https://doi.org/10.5594/J16774
Snippet:
<li>
Don McLendon, Pat Coakley, Bob Jones, Ken McLendon, and Mike Casper; <cite id="bib-10-5594-j16774">35mm—The Next 100 Years—3 or 4 PERF, 24 or 30 FPS An Available Solution for the Dilemma</cite>, SMPTE Journal ( Volume: 99, Issue: 1, January 1990); SMPTE, 1990
<span class="doi">10.5594/J16774</span>
</li>