Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts

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Publisher: SMPTE — White Plains, NY, USA
Suite/Collection: Motion-Picture Equipment
Doc Type: Standard (ST)
Pages: 1–3
Abstract: (1.1) This standard specifies the lens markings, focal length tolerances, mounting diameters, mechanical factors in mounting additional lens adaptors to lenses, and the preferred value steps in focal lengths for lenses used in 35- and 70-mm motion-picture projectors. (Focal length referred to in this standard is the equivalent focal length, commonly known as EFL.) (1.2) This standard also specifies the limiting or maximum available space for projector lens mounts where lenses of varying focal lengths and designs and attachments thereto are used.
Release Tag: 19930322-pub
Publication Date: 1993-03-22
Approval Date: 1993-03-22
Reaffirm Date: 2012-11-03
DOI: 10.5594/SMPTE.ST243.1993
ISBN: 978-1-61482-392-6
Link: https://doi.org/10.5594/SMPTE.ST243.1993
Group: SMPTE 20F Film
Keyword(s): Film, Projection, 35mm, Dimension, Projector, 70mm, Lens
ICS Codes: 37.060.01 Cinematography in general
37.060.10 Motion picture equipment
Copyright: © 1993 Society of Motion Picture and Television Engineers, Inc.

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<span class="citation"><cite>SMPTE ST 243:1993</cite>, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts. Available at <a href="https://doi.org/10.5594/SMPTE.ST243.1993" target="_blank" rel="noopener">https://doi.org/10.5594/SMPTE.ST243.1993</a></span>

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<span class="citation"><cite>SMPTE ST 243</cite>, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts. Available at <a href="https://doi.org/10.5594/SMPTE.ST243" target="_blank" rel="noopener">https://doi.org/10.5594/SMPTE.ST243</a></span>

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SMPTE ST 243:1993, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts
doi: 10.5594/SMPTE.ST243.1993
url: https://doi.org/10.5594/SMPTE.ST243.1993

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<li>
<cite id="bib-smpte-st243-1993">SMPTE ST 243:1993</cite>, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts
<span class="doi">10.5594/SMPTE.ST243.1993</span>
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SMPTE ST 243, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts
doi: 10.5594/SMPTE.ST243
url: https://doi.org/10.5594/SMPTE.ST243

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<li>
<cite id="bib-smpte-st243">SMPTE ST 243</cite>, Motion-Picture Equipment - 35- and 70-mm Projection Lenses and Mounts
<span class="doi">10.5594/SMPTE.ST243</span>
</li>