Focusing - Nikon LABOPHOT2-POL Instructions Manual

21
N.
OPERATIONS IN DETAIL
7. Focusing
(Coarse, Fine focus knobs and Coarse-focus torque adjustment
ring)
e
Focusing is carried out by the coarse and fine focus knobs at the left
and right of the microscope stand.
eThe direction of vertical movement of the stage corresponding to the
turning direction of the focus knob is shown in Fig. 13.
e
One rotation of the fine focus knob moves the stage 0.1 mm and the
graduation on the fine focus knob is 1 micron. One rotation of the
coarse focus knob moves the stage 1 2mm.
The range of coarse and fine motion is 2mm up and 28mm down
from the standard position.
Never turn the right or left knob while holding the other. It may
cause problems.
Do not turn the coarse and fine focus knobs further than the limit.
eThe rotation of the coarse-focus knob can be tightened when the
torque adjustment ring is turned counter-clockwise.
Fig.13