ISO 1780:1975
(Main)Cinematography — Motion-picture camera cartridge, 8 mm Type S, Model I — Aperture opening, pressure pad and film load — Positions and dimensions
Cinematography — Motion-picture camera cartridge, 8 mm Type S, Model I — Aperture opening, pressure pad and film load — Positions and dimensions
Cinématographie — Chargeur modèle I pour caméra 8 mm type S — Fenêtre, presseur et chargement du film — Positions et dimensions
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INTERNATIONAL STANDARD @ 1780
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INTERNATIONAL ORGANIZATION FOR SlANDARDIZAlION .\ll A 1) tI.IPOIti".I( OPr 4HI134UMR 110 CTAH3APTb13AUWU .ORGANISATION INTERNATIONALE DE NORMALISATION
Cinematography - Motion-picture camera cartridge,
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8 mm Type S, Model I - Aperture opening, pressure
pad and film load - Positions and dimensions
Cinématographie -- Chargeur modèle I pour caméra 8 mm type S - Fenêtre, presseur et chargement
du film - Positions et dimensions
First edition - 1975-12-01
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UDC 771.531.352 : 778.533.4 Ref. No. IS0 1780-1975 (E)
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Descriptors : cinematography, motion-picture cameras, motion-picture film 8 mm, packs, aperture (optics), specifications, layout, position
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(location), dimensions, loading.
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Price based on 5 pages
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FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (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 set
up 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 1780 was drawn up by Technical Committee
ISO/TC 36, Cinematography, and circulated to the Member Bodies in
February 1975.
It has been approved by the Member Bodies of the following countries :
Austria Italy Turkey
Belgium Japan United Kingdom
Canada Romania U.S.A.
Czechoslovakia South Africa, Rep. of U.S.S.R.
Denmark Spain Yugoslavia
France Sweden
Germany Switzerland
No Member Body expressed disapproval of the document.
O International Organization for Standardization, 1975
Printed in Switzerland
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IS0 1780-1975(E)
INTERNATIONAL STANDARD
Cinematography - Motion-picture camera cartridge,
8 mm Type S, Model I - Aperture opening, pressure
pad and film load - Positions and dimensions
1 3.3 Dimensions T and U denote the lateral location of the
SCOPE AND FIELD OF APPLICATION
film in the cartridge before insertion in the camera. It is
This International Standard specifies the dimension of the
expected that the camera aperture plate or film edge guides
aperture opening, dimensions and flatness tolerances for
will be positioned so that dimension T will become
the film surface of the pressure pad, and the location
1.52 mm (0.060 in) minimum and dimension U will
of the film in the aperture of the 8mm Types Model I
become 1.27 mm (0.050 in) minimum.
camera film cartridge. In addition, the zero plane used to
'L measure the flatness characteristics of the pressure pad and
recommendations pertaining to the camera aperture plate
3.4 All dimensions in table 1, except dimension A, apply
film surface dimensional profile, as well as the clearances at the front surface of the pressure pad. The pressure pad
for the film in the aperture area, are specified. need not be a cut-out to conform to these dimensions,
provided there is sufficient recess from the front surface of
as shown by dimension C to allow for
the pressure pad
2 REFERENCES
camera claw and camera aperture guide finger penetration
as defined in 3.5. A draft of 5" to the recess area is
IS0 1787, Cinematography - Camera usage of 8mm
permitted as well as an inside or outside radius of 0,13 mm
motion-picture film perforated Type S.
(0.005 in) at all corners to provide satisfactory mould
IS0 3024, Cinematography - Motion-picture camera release.
cartridge, 8 mm Type S, Model I - Camera run length,
perforation cut-out and end-of-run notch in film -
3.5 Dimension A denotes the maximum space available,
Specifications.
from datum plane C, for penetration of the camera film
IS0 3067, Cinematography - Motion-picture camera
alignment guides and the camera claw into the recessed area
cartridge, 8 mm Type S, Model I - Notches for film speed, of the cartridge pressure pad.
film identification and colour-balancing filter - Dimensions
and positions.
3.6 Dimension B defines the operating position of the
I SO 3654, Cinematograph y - Motion-picture camera
cartridge pressure pad when seated by the camera aperture
cartridge, 8 mm Type S, Model I - Camera fit and take-up
plate to provide proper positioning of the film emulsion
core drive - Dimensions and specifications. 1
plane and unrestricted film transport.
3 DIMENSIONS AND CHARACTERISTICS
3.7 The cartridge pressure pad recess defined by
dimensions D, E and J is available for camera claw film
3.1 The dimensions shown in figure 2 apply to a cartridge
transport engagement. The perforation used for the film
freshly loaded with film prior to insertion in a camera. The
vertical registration at its stopping position is specified in
dimensions shown in figures 1 and 3 apply to a cartridge
IS0 1787 as the minus 2 perforation from the perforation
that has been fully assembled, but does not contain film in
adjacent to the image formed by the camera aperture. The
the aperture area.
horizontal centre line of the camera aperture should
nominally coincide with datum plane A.
3.2 Many dimensions are given with respect to datum
planes A, B and C. The datum planes are mutually
3.8 The zero plane, referenced in table 4, is established by
perpendicular and are coincident with the surfaces that
engage
...
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