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Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947)
[ACTIVE]

The Physical Properties and the Practical Application of the Zoomar Lens

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The “Zoomar” lens is a varifocal objective for motion picture cameras which achieves the change of focus by the linear movement of a single barrel. The new feature of this lens consists of the principle of changing the focal length of the system by one group of lens components without consideration of the displacement of the image plane, while a second lens component, rigidly coupled to the first by the common barrel, compensates for this displacement.
Publication Date
1947-07-01
DOI
10.5594/J12688
Link
https://doi.org/10.5594/J12688
Author(s)
Frank G. Back
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12688.json

Reference this Doc

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Frank G. Back; The Physical Properties and the Practical Application of the Zoomar Lens, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12688
Snippet:
Frank G. Back; The Physical Properties and the Practical Application of the Zoomar Lens, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12688

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Frank G. Back; The Physical Properties and the Practical Application of the Zoomar Lens, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12688
Snippet:
<span class="citation">Frank G. Back; <cite>The Physical Properties and the Practical Application of the Zoomar Lens</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at <a href="https://doi.org/10.5594/J12688" target="_blank" rel="noopener">https://doi.org/10.5594/J12688</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
Frank G. Back; The Physical Properties and the Practical Application of the Zoomar Lens, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947
doi: 10.5594/J12688
url: https://doi.org/10.5594/J12688
Snippet:
<li>
Frank G. Back; <cite id="bib-10-5594-j12688">The Physical Properties and the Practical Application of the Zoomar Lens</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947
<span class="doi">10.5594/J12688</span>
</li>