60
OBJECTIVE OPERATIONS
5 By operating the , adjust the brightness of the image while
watching it on the color LCD monitor.
In TRC-NW8F plus, the auto illumination level adjustment function works so, it is not nec-
essary to adjust the illumination level manually.
For details about the illumination level setting, see "Setting the illumination level" on
page 46.
6 Bring the instrument even closer to the patient, and two bright spots for the working dis-
tance alignment become visible.
When the auto focus function is ON, the instrument changes the split lines into one line.
At this time, the fundus is almost in focus.
The auto focus function will not work for ocular pathology (e.g. strong cataract), myopia
and hyperopia (beyond -13 and greater than +12D), etc.
When the auto focus function is OFF, operate the focusing knob to change the split lines
into one line on the color LCD monitor.
7 Operate the control lever until the two alignment bright spots are changed to one spot.
ILLUMINATION LEVEL SWITCH
Alignment bright spots
Split lines
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