Canon CR-2 - Manual (Page 26)

26
4 Basic Operations
2
Tilt the operation lever forward or backward to unify the top and bottom of the image of
the pupil.
When the pupil is smaller than the inner pupil alignment circle, images cannot be taken
properly.
Darken the room further to dilate the patient's pupil more. If the patient's pupil does not dilate
enough, use the small pupil photography function (see page 30).
3
Press the alignment button.
The retina appears in the observation monitor and the internal
eye fixation lamp blinks for three seconds.
4
Adjust the observation light brightness with the
observation light brightness button.
Guidelines for observation light brightness
Adjust to the lowest possible brightness level to reduce the strain on the patient's eye.
Observation monitor brightness adjustment
Use the Rics NM 2 to adjust the brightness of the observation monitor. See the Rics NM 2 manual
for details.