Focusing - Leica DM2700 M Instructions Manual

8. Operation
Right/left-hand operation
The coaxial pinion can be attached to either side
of the stage. (also see Assembly, p. 22). To
change the side, follow these steps:
• Loosen the lock screw (43.4) at the bottom
left-hand side of the stage. The necessary tool
is attached to the bottom of the stage on the
right-hand side.
!
Caution!
The condenser must be lowered!
• Slide the stage all the way back.
• Release the screw (43.5) on the coaxial pinion
and pull the pinion out.
• Place the fi ne focus wheel (43.2) on the side to
which you intend to mount the coaxial pinion.
The wheel is held in place magnetically. En-
sure that the button snaps into place. Attach
the other focus knob on the opposite side.
• Fasten the coaxial pinion to the other side
of the stage by retightening the appropriate
screw.
• Return the stage to the starting position and
retighten the lock screw. After installation of
the stage control, move the object guide all
the way to the left side of the instrument. Keep
turning when guide has reached the end of
travel until a click noise is heard.
• Readjust the condenser.
46

8.3 Focusing

Coarse and Fine Focusing
Coarse and fi ne focusing wheels are located on
either side of the stand (Fig. 45 and 46).
The special design of the fl at fi ne focus wheel
(Fig. 46.3) allows users to enclose the coaxial pin-
ion in their hands while operating the fi ne focus
with one fi nger. The fl at wheel should therefore
be mounted on the appropriate side. See right/
left-hand operation of the stage.
Height Adjustment of the Focusing Wheels
• Defocus the image by moving the stage down
with a full turn of the coarse focus wheel (45.2,
46.2).
Fig. 45 Focus knob with scaling
1 Setting the movement rate
2 Coarse focusing
3 Fine focusing
4 On/Off switch
1
2
3
4