Duplication Work And Photomicrography - Nikon FG-20 Instruction Manual

- TECHNICAL
INFORMATION-contlnued-------~
Duplication Work and Photomicrography
In copy work, slide duplication, and photomicro-
- Since color slide film has narrow exposure latitude, it is
graphy, you must make exposure compensation be-
advisable
to
bracket your exposures, keeping the following
cause these types of photography represent unusual
in mind:
contrast situations. The table at the right shows the
Increase the exposure by one stop for light-toned subjects
Decrease the exposure by one stop for dark·toned subjects
relationship between specific types of photos and the _
When using microfilm for duplication work, it is better
to
proper exposure. Since these suggestions are only
determine the exposure after experimentation. This is true
intended as a guide, you should experiment until you
because microfilm has very narrow exposure latitude; also
get good results.
the results are easily affected by the film emulsion number
or the conditions under which the film is developed.
38
- It is advisable
to
use
a
cable release
to
eliminate camera
vibration.
- To avoid vibration, you can make the exposure by turning
the illumination on and off.