1、BRITISH STANDARD BS ISO 5768:1998 Cinematography Image produced by camera aperture TypeW on16mm motion-picture film Position and dimensions ICS 37.060.20BSISO5768:1998 This British Standard, having been prepared under the directionof the Consumer Products and Services Sector Committee, was published
2、 under the authority of the Standards Committee and comes into effect on 15 February1999 BSI 05-1999 ISBN 0 580 32063 4 National foreword This British Standard reproduces verbatim ISO5768:1998 and implements it as the UK national standard. It supersedes BSISO5768:1996 which is withdrawn. The UK part
3、icipation in its preparation was entrusted to Technical Committee CPW/36, Cinematography, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK i
4、nterests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications r
5、eferred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of
6、 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 cover, an inside front cover, pagesi andii, theISO title page, page ii
7、, pages1 to3 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. Amendments issued since publication Amd. No. Date CommentsBSISO5768:1998 BSI 05-1999 i Contents Page N
8、ational foreword Inside front cover Foreword ii 1 Scope 1 2 Dimensions 1 3 35 mm internegatives and duplicate negatives 2 Annex A (informative) Equivalent projectable image areas 3 Bibliography 3 Figure 1 Image area on 16 mm Type W motion-picture negative or original 1 Figure 2 Image on 35 mm motion
9、-picture internegative or duplicate negative 2 Table 1 Dimensions 1 Table 2 Dimensions 2 Table A.1 Equivalent projection areas 3ii blankBSISO5786:1998 ii BSI 05-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member b
10、odies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental a
11、nd non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member b
12、odies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO5768 was prepared by Technical Committee ISO/TC36, Cinematography. This third edition cancels and replaces the second edition (ISO5768:1996), of
13、which it constitutes a minor revision. In Table 1, the tolerances have been removed from reference dimension C. Annex A of this International Standard is for information only. Descriptors: Cinematography, motion-picture film16mm, images, photographic images, dimensions, position (location).BSISO5768
14、:1998 BSI 05-1999 1 1 Scope This International Standard specifies the dimensions and location of the image area produced by the camera aperture Type W on16mm motion-picture film intended for enlargement to non-anamorphic35mm motion-picture film with an image aspect ratio of1,66 : 1 or greater. This
15、International Standard also specifies the dimensions and location of the corresponding image area on a35mm internegative or duplicate negative and the enlargement ratio in optical printing from16mm Type W originals. 2 Dimensions The dimensions shall be as given in Figure 1 and Figure 2 and Table 1 a
16、nd Table 2. NOTEInch dimensions reflect the practice in those countries using the Imperial System of Measurement. Table 1 Dimensions NOTEThe film is shown as seen from the inside of the camera looking towards the camera lens with the photographic layer away from the observer. Figure 1 Image area on1
17、6mm Type W motion-picture negative or original Dimension Millimetres Inches A nom. 12,35 0,486 B C ref. 9,00 0,354 D max. 2,825 0,111 E min. J = K nom. 15,175 0,597 R max. 0,15 0,006 7,42 +0,15 0 0,292 +0,006 0BSISO5768:1998 2 BSI 05-1999 3 35 mm internegatives and duplicate negatives The enlargemen
18、t ratio for printing35mm internegatives and duplicate negatives from16mm Type W originals shall be1,778:1. The image area dimensions and location on35mm internegatives and duplicate negatives shall be as given in Figure 2 and Table 2. Table 2 Dimensions NOTEThe film is shown as seen from the inside
19、of the camera of the optical printer looking towards the camera lens with the photographic layer away from the observer. Figure 2 Image on35mm motion-picture internegative or duplicate negative Dimension Millimetres Inches A 1nom. 21,95 0,864 B 1 C 1ref. 18,75 0,738 D 1max. 7,80 0,307 E 1min. J 1= K
20、 1nom. 29,74 1,171 R 1max. 0,25 0,010 13,19 +0,27 0 0,519 +0,010 0BSISO5768:1998 BSI 05-1999 3 Annex A (informative) Equivalent projectable image areas While it is clearly understood that16mm Type W camera images are not intended for release-print projection, it is often necessary to determine the a
21、rea of the16mm Type W image which is equivalent to the area that will be used for release-print projection after enlargement of the image. Such uses might be for screening of rushes or for viewing on editing equipment, etc. Table A.1 gives these equivalent areas. The centre of these areas is coincid
22、ent with the centre of the aperture image given in Figure 1 and Table 1. Table A.1 Equivalent projection areas Bibliography 1 ISO 25:1994, Cinematography Camera usage of16mm motion-picture film Specifications. 2 ISO 69:1998, Cinematography 16mm motion-picture and magnetic film Cutting and perforatin
23、g dimensions. 3 ISO 466:1976, Cinematography Image produced by16mm motion-picture camera aperture Position and dimensions. 4 ISO 2907:1984, Cinematography Maximum projectable image area on35mm motion-picture film Position and dimensions. 5 ISO 2939:1986, Cinematography Picture image area and photogr
24、aphic sound record on35mm motion-picture release prints Position and dimensions. Intended release projection format Width Height mm in mm in 1,66:1 11,80 0,464 7,10 0,280 1,85:1 11,80 0,464 6,38 0,251BS ISO 5768:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the
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