1、 STD-SMPTE RP LL5-ENGL 1997 W 8357403 0002738 9b3 M Dimensions Inches A 0.292 k 0.001 B 0.302 f 0.001 C 0.297 f 0.001 D 0.281 ref F 0.005 k 0.001 SMPTE RECOMMENDED PRACTICE Millimeters 7.42 & 0.03 7.67 f 0.03 7.54 f 0.03 7.14 ref 0.13 t: 0.03 Dimensions of Photographic RP 11 5-1 997 Revision of RP 1
2、15-1963 Control and Data Record on 35-mm Motion-Picture Release Prints Page 1 of 2 pages 1 Scope 2.2 The recording and reproducing slit images shall be positioned at an angle of 90“ k 1“ to the This practice specifies the lateral location and dimen- reference edge of the film. sions of a photographi
3、c control and data record on 35-mm motion-picture release prints, the width 3 Reproducer spectral sensitivity scanned by the control and data reproducer, and the reproducer spectral sensitivity. The peak or maximum response of the combination of the control and data track reproducer, light source, 2
4、 Data record filter, and receptor shall be at 550 nm + 130 nm - O nm. The integrated response of this combination 2.1 The dimensions and lateral location of the to all wavelengths greater than 800 nm shall be less control and data record shall be as specified in than 5% of the total integrated respo
5、nse measured the figure and table. from 400 nm to 800 nm. 04L TRLiCK FERENCE GE Copyright O 1997 by the SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved January 22,1997 STD-SMPTE RP 115-ENGL 1997 m 8357401 0002719 BTT 9 RP 115-1
6、997 Annex A (informative) Explanatory note A.l The spectral response specified in clause 3 is intended A.2 Particular care must be taken with printer and projector to ensure that the control and data track will be adequately alignment when printing and projecting motion-picture reproduced whether th
7、e track image is formed of dyes, release prints containing control and data records to mini- silver, or dyes and silver. Restriction of the infrared mize the risk of the audio scanned area covering any part of response is necessary because the dyes used in conven- the control and data record, or projecting the data track on tional color motion-picture films do not absorb infrared light the screen. 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
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