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00035_Field_35.txt
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1997-10-29
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FOCUSING
The eyepieces can be focused by placing the focusing rod in the hole where the lamp and microscope arms rotate.
With the focusing rod in place, adjust the
beam width to give a narrow
parallelepiped. The beam should be in
center of your field of view. If it is not
turn the collar or light tower that
changes the lateral angle of the light
source until it is centered-this should
be a click position. Looking through the
eyepieces (one at a time) rotate the
eyepiece counter-clockwise until the
beam is blurred then clockwise until it
just comes into focus.
Remove the focusing rod and you are ready to examine the patient.