Canon CX-1 - Manual (Page 39)

5. Basic Photography
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9 Determine the area to be photographed.
Use the external eye fixation lamp to guide the patient’s eye.
10 Focus on the patient’s eye.
Turn the focus knob to focus the image.
When using the focus indicator, ensure that the split
lines are aligned into a single straight line.
When it is difficult to guide a patient’s eye using the external eye fixation lamp
Patients’ eyes can also be guided using the internal eye fixation target (sold separately).
For details, contact your sales representative or local Canon dealer.
When the split lines cannot be aligned
If the patient diopter is not in the range of -10 to +15 D, focusing cannot be performed using the
focus indicator.
In this case, use the diopter compensation function (see page 46) to focus with the cross hair
line in the viewfinder.
When bringing the target into exact focus
When bringing the target into focus, the focus indicator serves as the general guideline for
focusing.
To bring it into focus even more exactly, focus on the target in such a way that the cross hair lines
in the viewfinder and fundus image can be clearly seen at the same time.
CX-1
Split line
Incorrect
Correct
Incorrect
000_L-IE-5169D_CX-1.book Page 39 Monday, July 29, 2013 10:42 AM