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    ANSI SMPTE ST 162-1998 Motion-Picture Film (8-mm Type S) - 16-mm Film Perforated 8-mm Type S (1-4) - Magnetic Striping.pdf

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    ANSI SMPTE ST 162-1998 Motion-Picture Film (8-mm Type S) - 16-mm Film Perforated 8-mm Type S (1-4) - Magnetic Striping.pdf

    1、STD-SMPTE Lb2-ENGL 1778 8357403 0003020 032 = SMPTE STANDARD SMPTE 162-1 998 Revision of ANSI/SMPTE 162-1992 for Motion-Picture Film (8-mm Type S) - 16-mm Film Perforated 8-mm Type S, (1-4) - Magnetic Striping 1 Scope This standard specifies the location and dimensions of the magnetic recording stri

    2、pes and the balance stripes applied to 16-mm motion-picture film with two rows of 8-mm type S perforations in positions 1 and 4. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication

    3、, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below. ANSVSMPTE 168-1 996, Motion-Picture Film (1 6-mm) - Perfora

    4、ted 8-mm Type S, (1 -4) SMPTE 161 -1 998, Motion-Picture Film (8-mm Type S) - Magnetic Striping 3 Dimensions 3.1 The location and dimensions of the magnetic recording stripes and balance stripes shall be as given in figure 1 and table 1. 3.2 The magnetic striping material shall be applied to the sur

    5、face of the film away from a camera or projector lens, for example, toward the light source of a projector arranged for direct front projection on a reflection-type screen. Page 1 of 2 pages 3.3 The stripes designated as ?recording? are made of a magnetic material and are intended for the audio reco

    6、rd. The stripes between the edge of the film and the perforations are the balance stripes. The balance stripes may be stripes of magnetic or nonmagnetic material of such thickness that the balance and recording stripes project above the surface of the film to substantially the same degree. 4 Film st

    7、ock The film stock used shall be safety type, cut and perforated in accordance with ANSVSMPTE 168. NOTES 1 The width and edge-to-perforation distance of the 8-mm slit strip shall be in accordance with ANWSMPTE 168. The location of the magnetic recording and balance stripes shall be in accordance wit

    8、h SMPTE 161. Consequently, it is not possible to take full advantage of the tolerance of both the slit width and the location of the magnetic recording and balance stripes. 2 Tolerances for the recording stripes are specified to permit usage of a single wide stripe or two separate stripes. If two st

    9、ripes are used, the amount of separation between the stripes should be sufficient to permit slitting within the requisites of the standard without obtaining undesirable feather edges of magnetic material. The separation required is determined by laboratory practice. 3 Notwithstanding the tolerance o

    10、n dimensions M, N, P, and Q, the width of the stripes, dimension N minus M and Q minus P, shall be 0.0250 in (0.635 mm) minimum. Copyright Q 1998 by THE SOCIE-TY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (91 4) 761 -7 100 Approved September 1,1998 STD-S

    11、MPTE Lb2-ENGL 1998 m 8357403 000302L T77 m SMPTE 162-1998 BALANCE STRIPE M&GNLTIC RECORDING STRIPES BALANCE STRIPE Figure 1 - Dimensions Table 1 - Specifications Dimensions Inches Millimeters 0.628 nom 0.285 10.002 0.31 2 f 0.002 0.31 6 f 0.002 0.343 f 0.002 0.61 3 f 0.003 0.625 f0.003 0.003 f 0.003 0.01 5 f 0.003 15.95 nom 7.24 k 0.05 7.92 f 0.05 8.02 f 0.05 8.71 f 0.05 15.57 f 0.08 15.88 f 0.08 0.08 f0.08 0.38 f 0.08 NCE ) See note 3. ) The millimeter conversion is approximate so that dimension P minimum equals dimension N maximum. Page 2 of 2 pages


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