Testing Camera Lenses by Projection

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A method for the fast and efficient checking of the suitability of motion-picture and television camera objective lenses consists in the use of a lens test projector. A test target reticle is projected through the lens to be checked and the projected image of the target is evaluated. In a brief outline, the early basic methods for lens testing are described from the 1920s and 1930s on. Initial difficulties in the making of targets and in obtaining suitable light sources for the test projector are mentioned. The fundamental requirements for such a projector and its screen are outlined. Current practices in the use of such equipment are explained.
Publication Date: 1979-10-01
DOI: 10.5594/J10373
Link: https://doi.org/10.5594/J10373
Author(s): Paul Foote

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Paul Foote; Testing Camera Lenses by Projection, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J10373

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Paul Foote; Testing Camera Lenses by Projection, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J10373

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Paul Foote; Testing Camera Lenses by Projection, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J10373

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<span class="citation">Paul Foote; <cite>Testing Camera Lenses by Projection</cite>, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979. Available at <a href="https://doi.org/10.5594/J10373" target="_blank" rel="noopener">https://doi.org/10.5594/J10373</a></span>

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Paul Foote; Testing Camera Lenses by Projection, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979
doi: 10.5594/J10373
url: https://doi.org/10.5594/J10373

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Paul Foote; <cite id="bib-10-5594-j10373">Testing Camera Lenses by Projection</cite>, SMPTE Journal ( Volume: 88, Issue: 10, October 1979); SMPTE, 1979
<span class="doi">10.5594/J10373</span>
</li>