Olympus CX41 Руководство по эксплуатации - Страница 11
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3-2 Focusing Block
Fig. 5
Fig. 6
1
Adjusting the Coarse Adjustment Knob Tension (Fig. 5)
1. The coarse adjustment knob tension is preadjusted for easy use.
However, if desired, one can change the tension using the tension
adjustment ring @. Applying a large flat-bladed screwdriver to any of
the grooves ² on the circumference of the ring, turning the ring
clockwise (in the direction of the arrow) increases tension, and vice
versa.
2. The tension is too low if the stage drops by itself of focus is quickly lost
after adjustment with the fine adjustment knob ³. In this case, turn the
ring in the direction of the arrow to increase tension.
2
Pre-focusing Lever
The pre-focusing lever ensures that the objective does not come in
contact with the specimen and simplifies focusing.
After focusing on the specimen with the coarse adjustment knob, turn
this lever @ clockwise (in the direction of the arrow) and lock; the
upper limit on coarse adjustment movement is set at the locked
position.
}Focusing using the fine adjustment knob is not affected by the pre-
focusing dial. Accordingly, after using the coarse adjustment knob to
lower the stage for changing specimens or applying immersion oil
(see section 3-6), refocusing is easily accomplished by rotating the
coarse adjustment to reach the pre-focusing position, then making fine
adjustments with the fine adjustment knob.
#When not required, leave the pre-focusing dial unlocked.
CX41
(Fig. 6)
8