1、SMPTE RP*LLL) 94 8357403 OOOL549 888 SMPTE RECOMMENDED PRACTICE Dimensions of Photographic Control and Data Record on 16-mm Motion-Picture Film RP 114-1994 Revision of RP 1 14-1 983 1 Scope Page 1 of 2 pages 2 Data record This practice specifies the lateral location and dimen- sions of a photographi
2、c control and data record on 16-mm motion-picture originals, intermediates, and prints, the width scanned by the control and data reproducer, and the reproducer spectral sensitivity. 2.1 The dimensions and lateral location of the control and data record shall be as specified in figure 1 and table 1.
3、 -ci + PICTURE IMAGE AREA - SC&“=-+ WIDTH Figure 1 - Control and data record Table 1 - Specifications REFERENCE EDGE _ Dimensions Inches - Millimeters A 0.612 f 0.001 15.54 I 0.03 B 0.622 I 0.001 15.80 + 0.03 C 0.617 I 0.001 15.67 I 0.03 D 0.600 ref 15.24 ref E 0.628 ref 15.95 ref F 0.005 + 0.001 0.
4、13 f 0.03 Copyright O 1994 by the SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved February 8, 1994 SMPTE RPr114 94 8357403 0001550 5TT RP 114-1994 2.2 The recording and reproducing slit images shall be positioned at an angle of
5、 90“ f 1 “ to the reference edge of the film. 3 Reproducer spectral sensitivity filter, and receptor shall be at 550 nm + 130 nm - O nm. The integrated response of thiscombination to all wavelengths greater than 800 nm shall be less than 5% of the total integrated response measured from 400 nm to 80
6、0 nm. The peak or maximum response of the combination of the control and data track reproducer, light source, Annex A (informative) Additional data The spectral response specified in clause 3 is intended to ensure that the control and data track will be adequately reproduced whether the track image
7、is formed of dyes, silver, or dyes and silver. Restriction of the infrared response is necessary because the dyes used in conven- tional color motion-picture films do not absorb infrared light effectively. Since dirt and scratches on the film will absorb infrared light, restriction of the infrared response will improve the signal-to-noise ratio of the system. Page 2 of 2 pages
