Canon CR-2 - Manual (Page 27)

4 Basic Operations
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5
Have the patient stare at the internal eye fixation lamp to fix the part for the photograph.
Take the following steps to guide the patient’s eye. Press the FIX TARGET buttons up, down, left, and
right to move the internal eye fixation lamp to your desired position and then press the set button
to make it blink. If the eye cannot be guided by the internal eye fixation lamp, use the external eye
fixation lamp (sold separately).
Set button
Press the set button for over two seconds to reset the position of the internal eye fixation lamp.
See the Rics NM 2 manual for details.
6
Turn the focus ring to align the split lines into a single line.
The image enlarges while the focus ring is being turned.
Focus ring
Split line
Correct
Incorrect
Incorrect
When the split lines do not align
If the patient's diopter range is outside the –10 to +15 D, it is not possible to focus with the focus
indicator. If this happens, use the diopter compensation function (see page 31), and focus the image
so it looks sharp.