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The light
seal on this camera has crumbled away making
the camera useless but is easily and cheaply replaced by the
open
cell foam |
Various types of
closed cell
foam are used for the replacment of mirror cushions in many older
cameras |
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Many
older cine cameras use foam to hold the film and batteries in place. As
can be seen above this quickly rots away, particularly if the batteries
are left in the camera for any length of time |
It is
surprising how much light seal some cameras
actually require
and if any one of these seals fails then the camera is
useless, but with the application of the open cell foam seal it can be
cheaply restored |
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It
is important to ensure that the film view window seal is intact as this
is a common cause
of film fogging |
This
shows the deterioration of the foam packing holding the prism in a SLR
camera.The sightest touch of the scewdrivermakes the old rotten foam
fall away.If this is not replaced the prism will become mis-aligned and
rattle. |
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The shutter and prism seating
also require
a foam damper which can rot away after time and will need to be
replaced. |
Certain makes of camera have a
special
cotton thread seal of about 1.5mm in diameter which runs in a groove
around the perimeter of the body. This type of seal is not immediately
obvious and if it deteriorates can cause the film access door
to
rattle and not close firmly against the body of the camera causing
light leakage. This should be used with care and the film door should
never be forced shut. |