Nikon 50i, Инструкция по эксплуатации

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Chapter 3 Individual Operations
3.4 Vertical Stage Motion
41
3
3.4.4 Adjusting the rotating torque of the coarse focus knob
Adjust the rotation torque of the coarse focus knob
(rotation resistance) by turning the torque
adjustment ring (TORQUE) located at the base of
the coarse focus knob. If the torque is too low, the
stage may descend under its own weight.
When turned in the
direction of arrow Makes knob harder to
turn.
When turned in the
direction opposite to
arrow Makes knob easier to
turn.
3.4.5
How to refocus
The entire stage can be lowered by setting a finger
on the refocusing lever or top surface of the stage
and pushing down. When the finger is released, the
stage slowly returns to its original position.
If the stage is lowered to the lowest position, it will
be locked in that position.
Push down once again to disengage the lock,
allowing the stage to slowly return to the original
position.
This function is useful when replacing specimens.
Be sure to lower the stage slowly.
Coarse focus torque
adjustment knob
Refocusing
lever