9
4 Pre-focusing Lever
(Fig. 8)
}The pre-focusing lever ensures that the objective does not come in con-
tact with the specimen and simplifies focusing.
After focusing on the specimen with the coarse adjustment knob, turn
this lever @ in the direction of the arrow and lock; the upper limit of
coarse adjustment movement is set at the locked position.
After changing a specimen, refocusing is easily accomplished by rotat-
ing the coarse adjustment knob to reach the pre-focused position, then
making fine adjustments with the fine adjustment knob.
}Stage movement with the fine adjustment knob is not locked.
# If the pre-focusing lever is locked, the stage cannot be lowered to
the lower limit.
3-3 Reflected Light Brightfield/Darkfield Illuminator (BX-RLA2)
}For the BX-URA2 universal illuminator, please refer to its instruction manual.
1 Selecting the Light Path
(Fig. 9)
Slide the mirror selector lever @ toward the indication of the mirror for the
desired observation method.
BF: Reflected light brightfield observation
DF: Reflected light darkfield observation
# Be sure to slide the mirror selector lever until it contacts the stopper
position.
Effects of Dummy Slider
The dummy slider ² has been installed on the revolving nosepiece at
the factory. It can be replaced by loosening the clamping knob ³ when
a DIC prism is to be used. However, in observations other than DIC, be
sure to push in the dummy slider in order for prevention of flare.
Fig. 8
Fig. 9
@
@
²
³
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