SMPTE ST 127-2003 Motion-Picture Film (16-mm) - Magnetic-Photographic Audio Records - Magnetic Striping of Prints.pdf

1、 1 Scope This standard specifies the location and dimensions of the magnetic striping material applied to 16-mm motion-picture prints, containing a picture and photographic audio record, for the purpose of employing both a magnetic and the existing photographic audio record. 2 Magnetic striping 2.1

2、The location and dimensions of the magnetic striping shall be as given in figure 1 and table 1. 2.2 The magnetic striping shall be on the side of the film toward the lamp on a projector arranged for direct front projection on a reflection-type screen. NOTES 1 This standard is not recommended for uni

3、lateral variable-area track. 2 The balance stripe is optional and may be a magnetic coating or another material of the same thickness. 3 A photographic audio record on this film may be overcoated by as much as 50% by the magnetic stripe. However, experience shows that the photographic record can be

4、reproduced acceptably if it has been recorded in accordance with SMPTE 41. Page 1 of 2 pages SMPTE 127-2003 Revision of ANSI/SMPTE 127-1994 Copyright 2003 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved December 14, 2003

5、 SMPTE STANDARD for Motion-Picture Film (16-mm) Magnetic-Photographic Audio Records Magnetic Striping of Prints SMPTE 127-2003 Page 2 of 2 pages Figure 1 Location and dimensions of magnetic striping Table 1 Specifications Dimensions Inches Millimeters A 0.031 max 0.79 max B 0.002 max 0.05 max C 0.62

6、8 ref 15.95 ref D 0.575 0.570 max min 14.60 14.48 max min E 0.623 min 15.82 min Annex A (informative) Additional data The outer edge of the magnetic striping ideally should be coincident with the edge of the film. Therefore, every effort should be made to reduce the edge-to-stripe dimension as much as possible, consistent with the best uniformity of stripe thickness and flatness of stripe profile. Annex B (informative) Bibliography SMPTE 41-1999, Motion-Picture Film (16-mm) Prints Photographic Audio Records