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Selecting Single or Dual
Exposure (394 only)
Depending on the type of film that is to be exposed, the
sensitometer can have either single sided or double-
sided exposure selected.
If the film to be exposed is a single emulsion type, slide
the exposure switch to the “SINGLE” position and
expose Emulsion Side Down. Expose double emulsion
type films in the “DUAL” switch position.
Adjusting Exposure Setting (393)
The sensitometer has the capability of seven different
exposure times for both blue and green. The factory
preset exposure setting is #3. If different exposure times
are required, refer to the chart on the next page—or
bottom of unit—for the settings. Each exposure setting
will move the speed index on the film one step.
The dipswitch used to change the exposure time is
located on the bottom of the unit. When the blue color
is selected, switches A,B,C,D bracketed as blue are