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1、BRITISH STANDARD BS 5550-1.2.1: 1978 ISO 74:1976 Cinematography Part 1: 8 mm film Section 1.2 Image areas Subsection 1.2.1 Specification for positions and dimensions of the image area produced by camera aperture and maximum projectable image area on 8 mm Type R motion-picture film UDC 778.5.068.24:7
2、71.537.068 * R Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.2.1:1978 This British Standard, having been prepared under the direction of the Cinematograph Standards Committee, was published under the authority of the Executive Bo
3、ard on 28 February 1978 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference CMS/3 Draft for comment 75/71794 ISBN 0 580 09887 X Cooperating organizations The Cinematograph Standards Committee, under whose direction this British Standard was prepared, con
4、sists of representatives from the following Government department and scientific and industrial organizations: Association of Cinematograph, Television and Allied Technicians* British Broadcasting Corporation* British Film Institute* British Kinematograph, Sound and Television Society* British Photo
5、graphic Manufacturers Association Cinematograph Exhibitors Association of Great Britain and Ireland* Federation of Specialised Film Associations Film Laboratory Association Film Production Association of Great Britain Health and Safety Executive Illuminating Engineering Society Incorporated Associat
6、ion of Kinematograph Manufacturers Ltd. Independent Television Companies Association* Kinematograph Renters Society Ltd. Royal Photographic Society The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the
7、preparation of this British Standard: Association of Independent Cinemas Institute of Amateur Cinematographers National Association of Theatrical, Television attention is especially drawn to the following. Where the words “International Standard” appear, referring to this standard, they should be in
8、terpreted as “British Standard”. The comma has been used in some places as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Cross-references. The International Standards listed in clause 2 are given for information purposes only
9、. The following are, or are being, implemented as Subsections of BS 5550; the relevant BS numbers are as given below: A British 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
10、 British Standard does not of itself confer immunity from legal obligations. ISO 28BS 5550-1.3.1 ISO 29BS 5550-1.7.2a ISO 486BS 5550-1.1.4 ISO 1201BS 5550: Subsection . . . .a (currently BS 2981 corresponds) a In course of preparation. Summary of pages This document comprises a front cover, an insid
11、e front cover, pages i and ii, pages 1 and 2, an inside back cover 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: sheffieldun sheffieldun, na, Mon
12、Dec 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.2.1:1978 BSI 10-19991 1 Scope and field of application This International Standard specifies the location and dimensions of the image area produced by the camera aperture on 8 mm Type R motion-picture film, and the dimensions of th
13、e maximum film image area intended for projection. 2 References ISO 28, Cinematography Camera usage of 8 mm Type R motion-picture film Specifications. ISO 29, Cinematography Projector usage of 8 mm motion-picture film for direct front projection1). ISO 486, Cinematography 16 mm motion-picture film p
14、erforated 8 mm Type R Cutting and perforating dimensions. ISO 1201, Cinematography 8 mm motion-picture film with picture Location and width of magnetic striping and gaps of recording and reproducing magnetic heads for magnetic sound record. 3 Dimensions The dimensions shall be as shown in the figure
15、s and given in the tables. NOTE 1The “reference edge” is the edge of the film which forms the datum for the specified dimensions; it is not necessarily the edge of the film which is guided in the camera or projector. NOTE 2Dimensions A1, D1, and H1 define the maximum image area on the film that is a
16、vailable for projection. They do not define the opening in the aperture plate of a projector. NOTE 3It is recognized that in many cases the actual film image area that is projected may be smaller than the projectable maximum. It is intended, however, that the actual projected film image area be the
17、largest appropriately shaped figure that can be inscribed within the specified dimensions as the designing and technological features of the projector permit. 1) In preparation. (Revision of ISO/R 29.) Figure 1 Image area produced by camera aperture Licensed Copy: sheffieldun sheffieldun, na, Mon De
18、c 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.2.1:1978 2 BSI 10-1999 Table 1 Dimension of camera aperture image Table 2 Dimension of the maximum projectable area Dimensionmmin A max.2,870.113 B nominala4,900.193 C nominal5,210.205 D max.b7,870.310 min.7,540.297 H3,60 0,100.142 0
19、.004 R max.0,250.010 E = Fwithin 0,20 mm or 0.008 in K = J(nominal) a For information only. b The D dimension of the camera image is shown as a maximum to prevent exposure into the adjacent 8 mm area. Dimensionmmin A1 min.2,920.115 B1 nominala4,550.179 C1 nominal5,210.205 D1 max.7,540.297 H1 max.3,4
20、00.134 R1 max.0,250.010 a For information only. Figure 2 Maximum projectable image area Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.2.1:1978 BSI 10-1999 Publications referred to See national foreword Licensed Copy: sheffieldun
21、sheffieldun, na, Mon Dec 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.2.1: 1978 ISO 74:1976 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on stan
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30、 written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI