Nikon ECLIPSE E800 Instructions Manual page 13

Preset voltage switch (for photomicrography)
The color temperature of the lamp varies according to the voltage. If the voltage is high, the color
temperature of the lamp increases and the light becomes bluer; if the voltage is low, the color tem¬
perature of the lamp decreases and the light becomes redder. Therefore, in order to obtain the best
color reproduction in color photomicrography, it is necessary for the lamp voltage to be kept con¬
stant. When using daylight-type color film, the standard setup is to use the color balancing filter
(NCB 11) and set the lamp voltage to 9 V.
The preset voltage switch is used to automatically set the standard lamp voltage (9 V). Because the
brightness adjuster also serves as the preset voltage switch, setting the brightness adjuster to the
"PRESET'1 position automatically sets the lamp voltage to 9 V.
Fine adjustment of the preset voltage
If the final images on color film shot with the brightness adjuster set to the "PRESET" position
are reddish or bluish, adjust the preset voltage. Fine adjustments of up to ± 1 V can be made to
the 9 V setting by using a minus (-) screwdriver to turn the rotary switch (the preset voltage fine
adjustment dial) on the left side of the microscope base.
When images are reddish: Increase the voltage. (Doing so will increase the lamp color tem¬
perature, giving the light a bluish tint.)
When images are bluish: Decrease the voltage. (Doing so will decrease the lamp color tem¬
perature, giving the light a reddish tint.)
If this adjustment is not enough to resolve the problem, also use color compensation filters (CC
filters), available on the market.
R1 Oil-immersion operation
■■ (using an oil-immersion type objective and condenser)
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