Cameras, Continued
Lighting
You can use almost any type of light for copy work, provided the intensity of
the light is sufficient to prevent excessively long exposures. Another
principal requirement of the light source is that it produces a light with a
color temperature suitable for the type of film used. Use normal room light
to focus the image on the focal plane. Use copy lights on high to expose the
film.
Lights maybe part of the camera, as are lamp housing units and lights in the
copyboard, or they may be separate units. Lighted copyboards illuminate
copy from underneath. This allows greater control of negative density. It is
also superior for backlighting film positives and transparencies.
Figure 4-15 shows different light configurations.
Types of lights
Figure 4-15. —Light configurations.
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