BS-ISO-5800-1987.pdf
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1、BRITISH STANDARD BS ISO 5800:1987 Incorporating corrigendum June 2001 Implementation of ISO 5800:1987 Photography Colour negative films for still photography Determination of ISO speed ICS 37.040.20 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy
2、Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- BS ISO 5800:1987 This British Standard was published under the authority of the Standards Board and comes into effect on 15 March 1995 BSI 2008 ISBN 978 0 580 6
3、2730 9 National foreword This British Standard is the UK implementation of ISO 5800:1987, incorporating corrigendum June 2001. It supersedes BS 1380-3:1980 which is withdrawn. This British Standard is published under the direction of the Consumer Products and Services Sector Board and its preparatio
4、n was entrusted to Technical Committee CPM/10. NOTE International and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. This publication does not purport to include all the necessary provisions of a contract. Users ar
5、e responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments 30 June 2008Implementation of ISO corrigendum June 2001, text modified in 5.5 Copyright British Standards Instituti
6、on Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy
7、 Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- BS ISO 5800:1987 ii BSI 2008 Contents Page Forewordiii 0Introduction1 1Scope and field of application1 2References1 3Definitions1 4Sampling and storage1 5Metho
8、d of test2 5.1Principle2 5.2Safelights2 5.3Exposure2 5.3.1Sample condition2 5.3.2Type of sensitometer2 5.3.3Radiant energy quality2 5.3.4Modulation2 5.3.5Exposure time2 5.4Processing2 5.4.1Conditioning of samples2 5.4.2Processing specifications2 5.5Densitometry2 5.6Evaluation3 5.6.1Sensitometric cur
9、ve3 5.6.2Minimum densities4 5.6.3Determination of Hm4 6Product classification4 6.1ISO speed scale4 6.2ISO speed of a product4 6.3Accuracy4 7Product marking and labelling4 Figure Method for determining speed3 Table ISO speed scales4 Copyright British Standards Institution Provided by IHS under licens
10、e with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- BS ISO 5800:1987 BSI 2008iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of natio
11、nal standards bodies (ISO member bodies). 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. Internati
12、onal organizations, 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. They are a
13、pproved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 5800 was prepared by Technical Committee ISO/TC 42, Photography. This second edition cancels and replaces the first edition (ISO 5800:1979), of which it constitutes a te
14、chnical revision. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. Copyright British Standards Institution Provided by IHS under license wi
15、th BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- iv blank Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/591077
16、0001 Not for Resale, 08/14/2008 22:04:44 MDTNo reproduction or networking permitted without license from IHS -,-,- BS ISO 5800:1987 BSI 20081 0 Introduction Satisfactory prints can generally be obtained from colour negative films over a significant range of exposure provided that suitable adjustment
17、s are made in the printing operation. The underexposure latitude is approximately one camera exposure value unit (camera stop or Ev) when film speed is determined using this International Standard. Overexposure latitude of a colour negative film can be as large as 3 Ev. In other words, if a colour n
18、egative film has a speed of ISO 100, it may give satisfactory results if it is exposed anywhere from ISO 12 to ISO 200. Photographers, on the average, tend to underexpose film, particularly in simple cameras,1) as a result of their desire to record events under cloudy conditions or in the shade. Som
19、e cameracartridge systems are designed to take advantage of the overexposure latitude of colour negative films to improve results when pictures are taken under these circumstances. This is accomplished by overexposing the film under sunlight conditions to increase the underexposure latitude of the s
20、ystem. For example, a 126-size cartridge containing film with an ISO speed of 100 may be coded for ISO 64 speed. This International Standard is a revision of ISO 5800:1979 to update the format of presentation and to reference new ISO standards which more precisely describe illuminants and densitomet
21、ry specified for use. No differences in speed values should result from the changes made to the International Standard. 1 Scope and field of application This International Standard specifies the method for determining the ISO speed of colour negative camera films for pictorial still photography. It
22、is assumed that the colour negatives obtained with these films will be used to make reflection-type colour prints primarily but may also be used to make colour transparencies. The speeds obtained by application of this International Standard are intended for practical use with exposure meters, expos
23、ure calculators, and exposure tables. This International Standard does not apply to colour negative films for motion-picture and aerial photography or for making intermediate negatives. 2 References ISO 5, Photography Density measurements Part 1: Terms, symbols and notations Part 2: Geometric condit
24、ions for transmission density Part 3: Spectral conditions. ISO 554, Standard atmospheres for conditioning and/or testing Specifications. ISO 2720, Photography General purpose photographic exposure meters (photoelectric type) Guide to product specification. ISO 2721, Photography Cameras Automatic con
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