Canon CF-1 - Manual (Page 30)

5. Photography
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The position where the working distance dots appear
small is the optimum position.
8 Adjust brightness in field of view for observation.
Turning the brightness adjuster clockwise increases the
brightness for observation, and turning it counter-
clockwise reduces the brightness for observation.
9 Determine the area to be photographed.
Have the patient look at the external eye fixation lamp so that you may guide the patient’s eye.
The panning function (see page 40) and tilting function (see page 40) can also be used to change
the angle of the main unit.
When the split lines are not visible
Part of the split lines may not be visible if the pupil diameter is small.
In this case, press the small pupil photography switch to turn ON the small pupil photography
function (see page 39).
Concerning the linkup function of the working distance dot
Using a setting in the control software, the working distance dot and split line operations can be
linked up.
For further details, refer to the operation manual of the control software.
Concerning the brightness for observation
Standard brightness is position 4 on the scale.
Keeping in mind the potential for strain on the patient’s eye, select the lowest possible brightness
level.
Working
distance
dots
000_L-IE-5152E_CF-1.book Page 30 Monday, July 29, 2013 10:30 AM