Motion-Picture Film (35-mm) - Manufacturer-Printed Latent-Image Identification Information (Revision of SMPTE 254-2002)
电影胶片(35mm).制造商印刷的潜影识别信息(SMPTE 254-2002修订版)
1 Scope1.1 This standard specifies the position and dimensions of machine-readable identification numbers. These
numbers are intended to be a machine-readable version of the latent image key number. This standard also
specifies the encoding format to be used for these machine-readable numbers, as well as the area scanned
and the spectral characteristics of the scanner.1.2 This standard also specifies the position, dimensions, and content of human-readable identification (key)
numbers for use on 35-mm motion-picture films intended for original photography or intermediate printing
which also include the machine-readable key numbers described in 1.1. These numbers normally will be
exposed onto the film at the time of manufacture.1.3 This standard further specifies an area that may be used for optional manufacturer-specific film-type
identification information.1.4 This standard also specifies an area on the film which is not to be exposed by the film
manufacturer, thus leaving it available for customer data recording.1.5 Finally, this standard specifies an optional frameline index mark.