ISO 491:2002

INTERNATIONAL ISO
STANDARD 491
Sixth edition
2002-08-01


Cinematography — 35 mm motion-picture
film and magnetic film — Cutting and
perforating dimensions
Cinématographie — Film cinématographique et magnétique de 35 mm —
Dimensions de coupe et de perforation




Reference number
ISO 491:2002(E)
©
 ISO 2002

---------------------- Page: 1 ----------------------
ISO 491:2002(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not
be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this
file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this
area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.


©  ISO 2002
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body
in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland

ii © ISO 2002 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 491:2002(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national 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. International organizations, governmental and 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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
The main task of technical committees is to prepare International Standards. Draft International Standards adopted
by the technical committees are circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 491 was prepared by Technical Committee ISO/TC 36, Cinematography.
This sixth edition cancels and replaces the fifth edition (ISO 491:1995), which has been technically revised.
Annex A forms a normative part of this International Standard. Annex B is for information only.

© ISO 2002 – All rights reserved iii

---------------------- Page: 3 ----------------------
INTERNATIONAL STANDARD ISO 491:2002(E)

Cinematography — 35 mm motion-picture film and magnetic
film — Cutting and perforating dimensions
1 Scope
This International Standard specifies the cutting and perforating dimensions for 35 mm unexposed motion-picture
film and 35 mm magnetic film, and the types of perforations used.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 554:1976, Standard atmospheres for conditioning and/or testing — Specifications
ISO 18906:2000, Imaging materials — Photographic films — Specifications for safety film
3 Conditions for the measurement of dimensions
The dimensions and tolerances specified in this International Standard apply at the time of manufacture, measured
1)
under atmospheric conditions of (23 ± 1) °C and (50 ± 5) % relative humidity, as specified in I
...