SMPTE ST 243 : 1993(R2012)
Current
Current
The latest, up-to-date edition.
MOTION-PICTURE EQUIPMENT - 35- AND 70-MM PROJECTION LENSES AND MOUNTS
Published date
01-12-2013
Defines 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.
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