Eclair ACL II Manual Do Utilizador

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RECOMMENDATIONS
FOR USING OUR CAMERAS
UNDER EXTREME CLIMATIC
CONDITIONS
FILM AND TEMPERATURE
Storage
The package in metal cans conserves
the sensitometric and mechanical character-
istics of the f ilm (raw stock material). On the
following table, we indicate the maximum
temperatures for storage not exceeding a
period of 6 months.
Black & white negative film
12° C = 53° F.
Black & white positive film
18° C = 64° F.
Color film
10° C = 50° F.
Lower temperatures would not entail
any inconvenience. The desired temperature
will be reached faster under cold climatic
conditions.
Bringing the film to shooting temperature
Before opening the cans bring the
film to « location temperature ». The following
table indicates in hours the time necessary to
compensate the temperature differences.
Temperature
15° Centig
30° Centig
difference
59° F
86° F
Relative
humidity rates
70°
90°
70°
90°
Insulated 16mm can
1/2
1h
1h
2h
Insulated 35mm can 1 1/2h
3h
3h
6h
Cardboard 16mm &
18h
36h
36h
72h
35mm
Cold. If a film has a too high temperature
under cold climatic conditions, it dries up
rapidly and becomes brittle.  Cracks can
occur near the loops and the sprocket-
lwheels.
Heat. If a film has a too low temperature, in hot
climates, it is susceptible of condensation on the
surface; as a result the emulsion becomes soft
and sticky that leaves in the camera gate emul-
sion deposits which result in scratches and film
jammings.
Exposure
The sensitivity of cinematographic films
is conserved to - 20° C (4° F) and one would
have to reach a temperature of - 55° C (- 67* F)
for obtaining a loss of the diaphragms sensitivity.
In summary:
• Keep the film at indicated temperature.
• Avoid unnecessary temperature variations.
• Make sure that film-cans have shooting tem-
perature.
• Do not leave the film in the camera more than
necessary.
• Develop the film as soon as possible.
HOT CLIMATES
Tropical and equatorial climates
The characteristics of these climates are
high relative humidity passing 70 % associated
with temperature of 30 a C (86 OF). We
(ecommend to transport cameras and films in
carrying-cases containing dessiccating agents
(moisture-absorbing product). If the carrying-
cases are not suff iciently water-vapor proof use
air-tight plastic-bags.
ECLAIR put these desiccatives in the carrying-
cases; keep them as they can be reused indefi-
nitely. Just expose them at a temperature of
120° C (248° F). The humidity which saturates
the atmosphere is condensed when the tem-
perature falls slightly; before sun-down put the
material into the transport case and never leave
the film in the camera over night.
Desert climates
The characteristics are very high
temperatures during the day and chilly nights.
As a result it is essential to use isothermic
containers to protect the film from these tem-
perature variations. These chilly nights will
allow to store the film at an acceptable tem-
perature. The air-tight plastic bags are protect-
ing the camera from dust, sand and laterite.
Utilisation
Keep the material in the shade of an
airy place, avoid direct sun-light and storage in
cars ETC...
• Bring the film to ambient temperature.
• Camera should not be loaded until immedi-
ately before use.
• After the end of shooting, place the exposed
film and the short-ends in the original contain-
ers. Use dry black paper only.
• If the relative humidity rate is lower than 70 %
seal the film cans by sticking adhesive tape on
the periphery.
• If the relative humidity rate is higher than
70%, stick the tape diagonally around the can
and put the exposed f ilm in an hermetically
sealed container provided with a desiccative
agent (avoid refrigerators).
• Develop the films as soon as possible.-
The above mentioned precautions are
valid for a period of approximately one month.
Would you kindly consult us for longer periods
which will of course necessitate other precau-
tions.
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