SMPTE ST 177-1995 Motion-Picture Film (35-mm) - Four-Track Magnetic Audio Release Prints - Magnetic Striping.pdf

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1、SMPTE 177 75 8357403 0002042 806 SMPTE STANDARD for Motion-Picture Film (35-mm) - Four-Track Magnetic Audio Release Prints - Magnetic Striping ANSVSMPTE 177-1 995 Revision aof ANSIISMPTE 177-1990 1 Scope This standard specifies the location and dimensions of the magnetic recording stripes on 35-mm m

2、otion- picture film used for four-track magnetic audio release prints having an anamorphic-type picture image. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indic

3、ated was valid. All standards are subject to revi- sion, and parties to agreements based on this stand- ard are encouraged to investigate the possibility of applying the most recent edition of the standard indi- cated below. Page 1 of 3 pages ANSIISMPTE 102-1 991, Motion-Picture Film (35- mm) - Perf

4、orated CS-I 870 3 Dimensions 3.1 The location and dimensions of the record- ing stripes shall be as specified in figure 1 and table 1. 3.2 The magnetic stripes shall be on the side of the film which is away from the light source when used on a projector arranged for direct front projection on a refl

5、ection-type screen. 4 Film stock The film stock used shall be safety type, cut and perforated in accordance with ANSIISMPTE 102. CAUTION NOTICE This Standard may be revised or withdrawn at any time. The procedures of the Standard Developer require that action be taken to reaffirm, revise, or withdra

6、w this standard no later than five years from the date of publication. Purchasers of standards may receive current information on all standards by calling or writing the Standard Developer Printed in USA Copynght Q 1995 by THE SOCIETY OF -L American Nalional Standard MOTION PICTURE AND TELEVISION EN

7、GINEERS (914)761-1100 595 W Hartsdaie Ave., White Plains, NY 10607 Approved September 12,1995 SMPTE 177 95 m 357403 o002043 742 m ANSVCMWE 177-1995 TRAVEL ! RE AS SEEN FROM INSIDE PROJECTOR LAMPHOUSE LOOKING TOWARD THE LENS Figure 1 - Location of recording stripes Table 1 - Dimensions 1 Dimensions i

8、nches Mili Imeters A 0.072 f 0.003 B 0.008 max C 0.1 79 f 0.003 D 0.242 f 0.003 E 1.1 69 f 0.003 F 1.207 f 0.003 G 1.306 f 0.003 H 1.369 min 1.83 f 0.08 0.20 rnax 4.55 f 0.08 6.15 f 0.08 29.69 f 0.08 30.66 f 0.08 33.17 f 0.08 34.77 min NCE Page 2 at 3 pages SMPTE 177 95 A357401 0002044 689 ANSVCMPTE

9、 177-1995 Annex A (informative) Additional data A.l The use of polyester base film stock is recommended in order to maintain the specified dimensions. A.2 The dimensions specified in this standard are predi- cated on the use of unshrunk film. It is recognized, however, that some shrinkage may occur

10、when striping a processed print. Specific measurements should take into account the overall width of the film as specified by dimension A in ANSI/SMPTE 102. Should the film width fall outside the permissible tolerance, all dimensions specified in this stand- ard may be multiplied by the ratio of nom

11、inal dimensions determined as follows: Measured width= Ratio of nominal dimensions Specified width A.3 The outer edge of the magnetic striping ideally should be coincident with the edge of the film, and for this reason, dimension B is specified as maximum and dimension H as minimum. A.4 Prints confo

12、r-ing to this standard are prepared in accordance with ANSIISMPTE 194 and ANSIISMPTE 137. Annex B (informative) Bibliography ANSWSMPTE 137-1 994, Motion-Picture Film (35-mm) - Release Prints - Four Magnetic Audio Records ANSIISMPTE 194-1 991, Motion-Picture Film (35-mm) - Projector Usage - Release Prints Having Four Perforations Per Frame Page 3 of 3 pages