1、BRITISH STANDARD BS 5550-2.2.3: 1980 ISO 4243:1979 Cinematography Part 2: 16 mm film Section 2.2 Image areas Subsection 2.2.3 Specification for positions and dimensions of picture image area and photographic sound record on 16 mm motion-picture release prints UDC 778.5.068.25:771.537.068 + 778.534.4
2、5.068BS5550-2.2.3:1980 This British Standard, having been prepared under the directionof the Cinematograph Standards Committee, was published under the authority of the Executive Board and comes into effect on 31 July 1980 BSI 10-1999 The following BSI references relate to the work on this standard:
3、 Committee reference CMS/3 Draft for approval 78/65729 ISBN 0 580 11550 X Cooperating organizations The Cinematograph Standards Committee, under whose direction this BritishStandard was prepared, consists of representatives from the following Government departments and scientific and industrial orga
4、nizations: Association of Cinematograph, Television and Allied Technicians* British Broadcasting Corporation* British Film Institute* British Kinematograph, Sound and Television Society* British Photographic Association Chartered Institution of Building Services Cinematograph Exhibitors Association
5、of Great Britain and Ireland* Film Laboratory Association Limited Film Production Association of Great Britain Health and Safety Executive Independent Television Companies Association* Royal Photographic Society The organizations marked with an asterisk in the above list, together with the following
6、, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Independent Cinemas Institute of Amateur Cinematographers National Association of Theatrical, Television and Kine Employees Co-opted members Amendments issued since publication Amd. N
7、o. Date of issue CommentsBS5550-2.2.3:1980 BSI 10-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii 1 Scope and field of application 1 2 References 1 3 Dimensions 1 4 Picture sound displacement 1 5 Emulsion orientation 1 6 Reproducing speed 1BS5550-2.2.3:1980 ii
8、BSI 10-1999 National foreword This British Standard is identical with ISO 4243 “Cinematography Picture image area and photographic sound record on 16 mm motion-picture release prints Positions and dimensions”, published by the International Organization for Standardization (ISO). It supersedes part
9、of BS677 “Motion-picture film”, Part 2 “16 mm film” which has been wholly withdrawn. Terminology and conventions. The text of the International Standard has been approved as suitable for publication, without deviation, as a BritishStandard. Some terminology and certain conventions are not identical
10、with those used in British Standards; attention is especially drawn to the following. 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. Wherever the words “International Standard” appear,
11、 referring to this standard, they should be read as “British Standard”. Cross-references International Standard Corresponding British Standard ISO 25:1976 BS 5550 Cimematography Subsection 2.3.1:1978 Specification for camera usage of16mm motion-picture film (Identical) ISO 26:1977 BS 5550-2.7.1:1978
12、 Specification for projector usage of16mm motion-picture films for direct front projection (Identical) ISO 69:1972 BS 4526 Dimensions of motion picture film Part 2:1969 a16 mm film (Technically equivalent) ISO 71:1977 BS 5550-2.4.1:1978 Specification for positions and dimensions of 16 mm negative ph
13、otographic sound record on 16 mm, 35/16mm and 35/32 mm motion-picture film (Identical) ISO 359:1977 BS 5550-2.2.2:1978 Specification for dimensions and location of the projectable image area on 16 mm motion-picture prints (Identical) ISO 466:1976 BS 5550-2.2.1:1978 Specification for position and dim
14、ensions of the image produced by 16 mm motion-picture camera aperture (Identical) ISO 490:1978 BS 5550-2.4.6:1979 Specification for positions and width dimensions of magnetic stripes and magnetic recording head gaps for sound record on 16 mm motion-picture film perforated along one edge (Type 1) (Id
15、entical) a This is to be renumbered as BS 5550-2.1.1 by amendment (AMD 2963).BS5550-2.2.3:1980 BSI 10-1999 iii 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 Britis
16、h Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages1and 2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be
17、 indicated in the amendment table on the inside front cover.iv blankBS5550-2.2.3:1980 BSI 10-1999 1 1 Scope and field of application 1.1 This International Standard specifies positions, dimensions and location of image and photographic sound record on16mm release prints. 1.2 It also specifies the wi
18、dth and lateral position of the sound record scanning beam and its relative displacement with respect to the corresponding picture image frame. 2 References ISO 25, Cinematography Camera usage of 16 mm motion-picture film Specifications. ISO 26, Cinematography Projector usage of16mm motion-picture f
19、ilms for direct front projection Specifications. ISO 69, Cinematography 16 mm motion-picture raw stock film Cutting and perforating dimensions. ISO 71, Cinematography 16 mm negative photographic sound record on 16 mm, 35/16 mm and35/32 mm motion-picture film Position and dimensions. ISO 359, Cinemat
20、ography Projectable image area on 16 mm motion-picture prints Dimensions and location. ISO 466, Cinematography Image produced by16mm motion-picture camera aperture Position and dimensions. ISO 490, Cinematography Magnetic stripes and magnetic recording head gaps for sound record on16mm motion-pictur
21、e film perforated along one edge (Type 1) Positions and width dimensions. 3 Dimensions 3.1 The dimensions shall be as shown in the figure and given in the table. 3.2 The sound recording and reproducing slit images shall be positioned at an angle of 90 5 with respect to the reference edge of the film
22、. 3.3 Dimensions are given relative to unshrunk safety film. 4 Picture sound displacement The recording of sound on the film shall precede the corresponding picture frame in the direction of film travel in normal projection. The distance between the horizontal centre line of the picture frame and it
23、s corresponding sound record shall be26frames1frame, and preferably26frames 0,5frame. 5 Emulsion orientation The preferred emulsion orientation of 16mm sound motion picture prints is toward the projection lens when the film is threaded for direct front projection. NOTE16 mm motion-picture prints may
24、 be made with the emulsion side either towards the projection lens or towards the light source. There should not be different emulsion orientation in the same reel. The position should be indicated in the leader or on the container. 6 Reproducing speed The recording shall be made so that the sound r
25、ecord will reproduce properly at24 perforations per second approximately 11m (36 ft) per minute or18,3cm (7.2in) per second. This equivalent to the projection speed of the picture film of24 frames per second.BS5550-2.2.3:1980 2 BSI 10-1999 Dimension mm in A max. 2,95 0.116 B min. 10,05 0.396 C nom.
26、7,98 0.314 D 13,00 0.512 E ref. 15,95 0.628 H 7,42 0.292 L 1(See note 1) 1,52 0.060 L 2(See note 2) 2,03 0,08 0.080 t 0.003 M (See note 3) 14,48 0,08 0.570 0.003 P 13,58 0,03 0.535 0.001 Q 1,80 0,03 0.071 0.001 R max. 0,50 0.020 J = K (nom.) NOTE 1For variable area and matted variable density sound
27、record. NOTE 2For variable density sound record. NOTE 3To the centre line of the variable area or the variable density sound record. +0,15 00.006 + 0 +0,15 00.006 + 0 +0,10 0,030.004 + 0.001 3 blankBS 5550-2.2.3: 1980 ISO 4243:1979 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitut
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