American Standards PH22.21, —.22, 1953, 8mm Motion-Picture Film, Usage in Camera and Projector

Published on the following pages are revisions of two American Standards: Z22.21–1946. Emulsion Position in Camera for 8mm Silent Motion-Picture Film; and Z22.22–1947. Emulsion Position in Projector for Direct Front Projection of 8mm Silent Motion-Picture Film. The revisions are purely editorial in nature, consisting of a change in title and use of the word “rate” in place of “speed” in paragraph 2.—H.K.

Print ISSN
Published
1954-03
Content type
Information
DOI
10.5594/J00952
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