Cinematography - Projection reel size 7 for 8 mm Type S motion-picture film - Dimensions and specifications

The size 7 reel descirbed here has a nominal film capacity of 15 m and is generally used for returning the film from the processing laboratory. It is considered to be interchangeable in all models of 8 mm projection cassettes (encapsulated devices) of type S which take up reels with a maximum outside flange diameter of 75 mm. This type of reel also fits normal reel-to-reel projection equipment.

Cinématographie — Bobine de projection, type 7, pour film cinématographique 8 mm type S — Dimensions et spécifications

General Information

Status
Published
Publication Date
30-Nov-1983
Technical Committee
Drafting Committee
Current Stage
9093 - International Standard confirmed
Start Date
10-Jul-2023
Completion Date
13-Dec-2025
Ref Project

Overview - ISO 6033:1983 (Projection reel size 7 for 8 mm Type S)

ISO 6033:1983 specifies the dimensions and functional requirements for projection reels size 7 used with 8 mm Type S motion‑picture film. The size‑7 reel has a nominal capacity of 15 m (for 0.1 mm film thickness), fits Type S encapsulated projection cassettes that accept reels with up to 75 mm maximum outside flange diameter, and is also compatible with normal reel‑to‑reel projection equipment. The standard defines hub and flange geometry, film attachment and retention requirements, allowable run‑out tolerances and guidance for winding and drive features.

Key topics and technical requirements

  • Nominal capacity and film thickness: Size 7 designed for ~15 m of 8 mm Type S film of 0.1 mm thickness (table examples provided for varying total film thickness including magnetic track).
  • Interchangeability: Compatible with all 8 mm Type S projection cassettes accepting reels up to 75 mm flange diameter; also fits reel‑to‑reel projectors.
  • Retention strength: Film retention means (plug/clip) must hold the film so that a minimum radial traction of 5 N will not tear off the reel hub.
  • Flange design: At least one solid flange (no thread‑up slots) is required; the solid flange must be opposite the access/opening for film attachment.
  • Dimensional tolerances: Radial and lateral run‑out maxima are specified (figures/tables) to ensure free spinning and avoid film damage; manufacturers must observe these tolerances.
  • Capacity calculation: The standard provides a method (variables defined for winding diameter, maximum hub diameter and film thickness) to calculate reel capacity for different winding tightness.
  • Retention plug/clip limits: If plugs or clips are used, they must not protrude beyond specified dimensions so as not to interfere with cassettes or projection mechanisms.
  • Drive features: Three drive slots on the spindle hole of each flange are specified to help loading and rewinding.

Applications and who uses it

  • Reel and cassette manufacturers - ensure mechanical compatibility and interchangeability across projectors and labs.
  • Projection equipment designers - design cassette cavities, spindle drives and clearance to comply with run‑out and retention dimensions.
  • Film processing laboratories and rental houses - use standardized reels for returning processed 8 mm film safely.
  • Archives, restorers and museums - preserve handling standards and select compatible reels for playback and storage.
  • Technicians and suppliers - verify retention strength, winding practices (film threaded clockwise, emulsion out) and drive slot alignment.

Related standards

  • ISO 1700 - 8 mm Type S raw stock cutting and perforating dimensions
  • ISO 3639 - Projection reels/spools 75 to 312 mm - dimensions and specifications
  • ISO 3653 (spindles) - spindles for 8 mm Type S projection reels/spools

Keywords: ISO 6033:1983, projection reel size 7, 8 mm Type S, film reel dimensions, cinematography standard, projection cassette, reel‑to‑reel compatibility.

Standard
ISO 6033:1983 - Cinematography -- Projection reel size 7 for 8 mm Type S motion-picture film -- Dimensions and specifications
English language
4 pages
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Standard
ISO 6033:1983 - Cinématographie -- Bobine de projection, type 7, pour film cinématographique 8 mm type S -- Dimensions et spécifications
French language
5 pages
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Frequently Asked Questions

ISO 6033:1983 is a standard published by the International Organization for Standardization (ISO). Its full title is "Cinematography - Projection reel size 7 for 8 mm Type S motion-picture film - Dimensions and specifications". This standard covers: The size 7 reel descirbed here has a nominal film capacity of 15 m and is generally used for returning the film from the processing laboratory. It is considered to be interchangeable in all models of 8 mm projection cassettes (encapsulated devices) of type S which take up reels with a maximum outside flange diameter of 75 mm. This type of reel also fits normal reel-to-reel projection equipment.

The size 7 reel descirbed here has a nominal film capacity of 15 m and is generally used for returning the film from the processing laboratory. It is considered to be interchangeable in all models of 8 mm projection cassettes (encapsulated devices) of type S which take up reels with a maximum outside flange diameter of 75 mm. This type of reel also fits normal reel-to-reel projection equipment.

ISO 6033:1983 is classified under the following ICS (International Classification for Standards) categories: 37.060.10 - Motion picture equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase ISO 6033:1983 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWEWYHAPOAHAR OPI-AHM3AlWl fl0 CTAH~APTM3A~MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Projection reel size 7 for 8 mm Type S
Cinematography i
motion-picture film - Dimensions and specifications
Dimensions et spkifica tions
Cindma tographie - Bobine de projection, type 7, pour film cin&matographique 8 mm type S -
First edition - 1983-12-15
UDC 778.533.4 : 771.531.352
Ref. No. ISO 6033-1983 (EI
Descriptors : cinematography, motion picture film, motion picture film 8 mm, reels, dimensions, specification.
Price based on 4 pages
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of developing International
Standards is carried out through IS0 technical committees. Every member body
interested in a subject for which a technical committee has been authorized 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council.
International Standard IS0 6033 was developed by Technical Committee ISO/TC 36,
Cinematography, and was circulated to the member bodies in January 1982.
It has been approved by the member bodies of the following countries :
Austria Egypt, Arab Rep. of Mexico
Belgium
France Spain
Canada Germany, F. R. Sweden
Czechoslovakia Italy USA
Denmark Korea, Dem. P. Rep. of USSR
The member body of the following country expressed disapproval of the document on
technical grounds :
Japan
O International Organization for Standardization, 1983 0
Printed in Switzerland
INTERNATIONAL STANDARD IS0 6033-1983 (E)
Cinematography - Projection reel size 7 for 8 mm Type S
motion-picture film - Dimensions and specifications
1 Scope and field of application Once the retention means is pushed into its seat, it shall retain
the film to such an extent that a minimum traction of 5 N, ac-
ting in a radial direction, will not tear off the reel hub a polyester
1.1 This International Standard specifies the dimensions for
film of 0.1 mm thickness.
8 mm Type S motion-picture projection reels size 7, with a
nominal film capacity of 15 m, generally used for returning the
film from the processing laboratory and considered to be inter-
3.6 The reel shall be designed with at least one solid flange
changeable in all models of 8 mm Type S projection cassettes
(see figure 11, with the exception of the hub area. The solid
(encapsuled devices), having an allowance for reels with up to
flange side of the reel shall be opposite to the opening in the
75 mm maximum outside flange diameter.
area for access to film attachment. By definition, the solid
hub
L
flange should not contain openings such as thread-up slots.
This type of reel also fits normal reel-to-reel projection equip-
ment.
3.7 The attached rings, defined by dimensions F, G and O,
This International Standard supersedes the specification are guiding means for horizontal operation of the reel.
1.2
given for the No. 7 reel described in IS0 3639.
3.8 Due to the fact that there are different thicknesses of film
NOTE - The device specified in this International Standard is the same
supports and magnetic striping, uniformity, as far as film
some countries. In others, a reel is
as the one identified as a spool in
thickness is concerned, no longer exists.
used only with projectors, and spools having solid flanges are generally
for raw stock used in cameras.
The capacity of the reel depends on the winding traction of the
projector, the flatness of the film and the number and nature of
2 Reference
existing splices.
IS0 3653, Cinematography - spindles for 8 mm Type S
For calculating the winding capacity
...


.
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWlE~YHAPOe(HAR OPI-AHH3AlWlR ll0 CTAHJlAPTM3AlWlM~RGANlSATION INTERNATIONALE DE NORMALISATION
Cinématographie -
Bobines de projection, type’7, pour
film cinématographique 8 mm type S - Dimensions et
spécifications
Cinematography - Projection reel size 7 for 8 mm Type S motion-picture film
- Dimensions and specifications
Première édition - 1983-12-15
CDU 778.533.4 : 771.531352
c
Réf. no : ISO 6033-1983 (FI
Y
sq
Descripteurs : cinématographie, film cinématographique, film cinématographique 8 mm, dévidoir, dimension, spécification.
I
cn
Prix basé sur 4 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiee aux comités techniques de I’ISO. Chaque
comite membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.
La Norme internationale ISO 6633 a été Rlaborée par le comité technique ISO/TC 36,
Cinématographie, et a 6té soumise aux comités membres en janvier 1982.
Les comités membres des pays suivants l’ont approuvée :
Allemagne, R. F.
Danemark Mexique
Autriche
Égypte, Rép. arabe d’ Suéde
Belgique
Tchécoslovaquie
Espagne
Canada
France URSS
Corée, Rép. dem. p. de Italie USA
Le comité membre du pays suivant l’a désapprouvée pour des raisons techniques :
Japon
@ Organisation internationale de normalisation, 1983 l
Imprimé en Suisse
ISO 60334983 (F)
NORME INTERNATIONALE
Bobines de projection, type 7, pour
Cinématographie -
film cinématographique 8 mm type S - Dimensions et
spécifications
1 Objet et domaine d’application 3.4 Ces dimensions s’appliquent indifféremment à tout maté-
riau utilisé pour la fabrication (généralement un plastique).
11 l La présente Norme internationale fixe les dimensions des
bobines de projection du type 7 ayant une capacité nominale de
3.5 La fixation du film doit être réalisée par une fente dans le
film de 15 m, pour film cinématographique 8 mm type S, géné-
noyau de la bobine et un dégagement minimal dans ce noyau
ralement utilisées pour renvoyer le film du laboratoire de déve-
est exigé pour faciliter l’accès à l’extrémité du film. Afin d’assu-
loppement et étudiées pour être interchangeables sur tous les
rer le réembobinage automatique de la fin du film, un dispositif
types de cassettes de projection pour film 8 mm type S (dispo-
incorporé de fixation du film doit être prévu, utilisant une bro-
sitifs protégés), ayant un diamètre maximal de la joue de
che ou un clip ou d’autres dispositifs susceptibles de fixer le
75 mm.
film.
Ce type de bobine convient aussi aux projecteurs classiques à
Si une broche ou un clip est utilisé(e), elle ou il ne doit pas saillir
bobines.
hors des cotes Q, R,, R, et W, RE, I?, (zones hachurées de la
figure 1). Pour toute opération de réembobinage, le dispositif
1.2 La présente Norme internationale annule et remplace la
de fixation ne doit pas dépasser les cotes 0 + J + 0.
spécification donnée pour la bobine no 7 décrite dans
VIS0 3639.
Une fois le dispositif de fixation introduit dans cette zone, il doit
retenir le film de telle manière qu’une force minimale de 5 N,
NOTE - Le terme «bobine)) correspond, en anglais, à deux termes dif-
appliquée dans une direction radiale, ne puisse arracher un film
férents : «spool» et «reel)). Le dispositif spécifié dans la présente
Norme internationale est le même que celui identifié comme «spool» en polyester, d’une épaisseur de 0’1 mm, du noyau de la
dans certains pays de langue anglaise. Dans d’autres pays, le dispositif
bobine.
appelé «reel)) est utilisé uniquement dans les projecteurs, et les disposi-
tifs avec joues pleines appelés «spool» sont généralement utilisés pour
charger les films vierges dans les caméras.
3.6 La bobine doit être concue avec au moins une joue pleine
(voir figure 11, à l’exception de la zone du noyau. Le côté de la
joue pleine de la bobine doit être du côté opposé à l’ouverture
2 Référence
de la zone du noyau permettant d’accéder à la fixation du film.
Par définition, la joue pleine ne doit pas avoir d’ouvertures telles
ISO 3653, Cindmatographie - Axes de projecteur pour bobi-
que les fentes pour le bobinage du film.
nes 8 mm type S - Dimensions.
3.7 Les cercles, définis par les cotes F, G et 0, sont des dis-
3 Dimensions
positifs de guidage pour le fonctionnement horizontal de la
bobine.
3.1 Les dimensions doivent correspondre à celles illustrées à
la figure 1 et
...

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