Use of the cca fflter switch, Use of the cca filter switch – Canon 312 XL-S User Manual
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Use of the CCA Fflter Switch
This camera is designed so that tungsten type
(artificial light) film may be used under all condi
tions. Since tungsten film is meant to be used with
artificial lighting, this camera comes equipped with
a CCA filter which converts the film's color tempe
rature for use under daylight conditions as well.
This is absolutely necessary to insure natural color
balance.
The CCA filter switch is located on the side of the
main body. When shooting with Type A (tungsten
type) film indoors under artificial light, set the
switch to the " Q " mark. This removes the CCA
filter from the optical path. When using Type A film
for daylight shooting, set the switch to the "
mark. This places the filter into the optical path of
the lens to convert the color temperature. When
Type G film for both daylight and artificial lighter
daylight type film is loaded in the camera, the filter
is automatically cancelled no matter what the
position of the filter switch is.