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1、BRITISH STANDARD BS ISO 1785:1983 Implementation of ISO 1785:1983 Cinematography Printed 8 mm, Type S, image area on 16 mm motion-picture film perforated 8 mm, Type S (1-4) Position and dimensions UDC 778.53 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled
2、 Copy, (c) BSI BS ISO 1785:1983 This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1996 BSI 11-1999 The following BSI references relate to the
3、 work on this standard: Committee reference CPW/36 Draft announced in BSI News August 1995 ISBN 0 580 25126 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee CPW/36, Cinematography International coordination, upon which t
4、he following bodies were represented: British Kinematograph, Sound and Television Society British Photographic Association ITV Association (ITVA) Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy
5、, (c) BSI BS ISO 1785:1983 BSI 11-1999i Contents Page Committees responsibleInside front cover National forewordii Forewordiii Text of ISO 17851 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1785:1983 ii BSI 11-1999 National forewor
6、d This British Standard reproduces verbatim ISO 1785:1983 and implements it as the UK national standard. It supersedes BS 5550-1.2.3:1978 which is withdrawn. This British Standard is published under the direction of the Consumer Products and Services Sector Board whose Technical Committee CPW/36 has
7、 the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A British
8、Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front co
9、ver, an inside front cover, pages i and ii, the ISO title page, pages ii to iv, pages 1 and 2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffi
10、eldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1785:1983 (E) ii BSI 11-1999 Contents Page Forewordiii 1Scope and field of application1 2Dimensions1 3B
11、ibliography1 Annex Additional data2 Figure1 Table1 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1785:1983 (E) BSI 11-1999iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national stand
12、ards bodies (ISO member bodies). The work of developing International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been authorized has the right to be represented on that committee. International organization
13、s, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO
14、1785 was developed by Technical Committee ISO/TC 36, Cinematography. This second edition was submitted directly to the ISO Council, in accordance with clause 6.11.2 of part 1 of the Directives for the technical work of ISO. It cancels and replaces the first edition (i.e. ISO 1785:1972), which had be
15、en approved by the member bodies of the following countries: No member body had expressed disapproval of the document. AustraliaGreeceSouth Africa, Rep. of AustriaIranSpain BelgiumIsraelSweden CanadaItalySwitzerland CzechoslovakiaJapanThailand Egypt, Arab Rep. ofNetherlandsUnited Kingdom FrancePeruU
16、SA GermanyRomania Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1785:1983 (E) BSI 11-19991 1 Scope and field of applica
17、tion This International Standard specifies the position and dimensions of the 8 mm, Type S printed picture areas for negative/positive and reversal printing on 16 mm motion-picture film perforated 8 mm, Type S, in positions 1 and 4. 2 Dimensions 2.1 The dimensions shall be as shown in the Figure and
18、 given in the Table and apply to the image formed on recently exposed and processed film. Table 2.2 Two images may be printed on this film. The image on the left-hand side is inverted and symmetrical to that on the right-hand side. The dimensions for this image, however, are taken from the left-hand
19、 edge of the film which then becomes the reference edge. 2.3 The angle between the horizontal edges of the picture image and the corresponding reference edge of the film shall be 90 1/2. 2.4 The angle of the vertical edges of the picture images shall be 0 1/2 to the corresponding reference edge of t
20、he film. 3 Bibliography ISO 1781, Cinematography Projector usage of 8 mm, Type S motion-picture film for direct front projection. ISO 1787, Cinematography Camera usage of 8 mm motion-picture film perforated Type S. ISO 3645, Cinematography Image area produced by 8 mm Type S motion-picture camera ape
21、rture and maximum projectable image area Positions and dimensions. ISO 4244, Cinematography Photographic sound record on 8 mm Type S motion-picture prints Position and width dimensions. Dimensionmmin A max. D min. H min. (see note 1) G (see the Annex A.1 and A.2) R max. E and F (see note 3) 1,47 7,1
22、6 4,14 9,98 0,05 0,13 0.058 0.282 0.163 0.393 0.002 0.005 NOTE 1Dimension H is minimum. In practice the value should be such that the frame line between pictures is opaque in the final print intended for projection. NOTE 2When a photographic sound record is included on the print, it will be necessar
23、y to restrict the value of dimension D to avoid intrusion into the sound track area (see the Annex clause A.5). NOTE 3Dimensions E and F should not differ from each other by more than 0,20 mm. Figure Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (
24、c) BSI ISO 1785:1983 (E) 2 BSI 11-1999 Annex Additional data (This annex does not form part of the standard.) A.1 If prints are made with a step printer, the registration device should be in the 2 perforation, or that perforation which corresponds to the 2 perforation when the final print stage is r
25、eached, to obtain maximum benefit of cancellation as films are projected in accordance with ISO 1781, which specifies the 2 position for projected films. A.2 To provide understanding in the design and use of printers, dimension G specified in the Figure and Table provides an image ideally centred ve
26、rtically on the perforation when the height is H min., with a reference dimension of 7,90 mm (0.311 in) from the positioning perforation to the horizontal centre-line of the intended image. When film having a perforation pitch of 4,227 mm (0.166 4 in) is printed or when dimension H differs from H mi
27、n., dimension G shall be changed to insure that the resultant image is centred vertically on the perforation, taking into account the processing shrinkage. A.3 The “film travel” shown in the Figure is to aid in illustrating the 2 perforation used to position the 8 mm print, and the direction of moti
28、on in the projector for the resulting 8 mm print if the Figure is as seen from the light source in a projector used for direct front projection. A.4 The parenthetical numerals have been added to the title of this International Standard to specify how the rows of perforations are placed on the film.
29、This designation is necessary only when the film stock is wider than its end use and more than one combination of perforation rows is possible. A.5 When a photographic sound record is included on the print, a recommended maximum value for dimension D of 7,20 mm (0.283 5 in) should be considered to c
30、onform to ISO 4244. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:43:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1785:1983 BSI 389 Chiswick High Road London W4 4AL BS
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