Canon CR-2 PLUS AF - Manual (Page 33)

5 Photography Auxiliary Functions
33
Small Pupil Photography Function
If the patient’s pupil does not dilate enough, use the small pupil photography function. When the
function is used, pupil diameters 3.3 mm or larger can be photographed.
1
Press the small pupil photography button.
The lamp on the small pupil photography button lights, and the small pupil photography indicator and
a dotted circle appear on the observation monitor.
ON ON
Small pupil photography indicator
Effective range of photography
2
Perform alignment and photography in the same manner as for basic operations.
Small pupil photography can be performed in the same manner as for color photography (see page 25).
Press the small pupil photography button again to finish the small pupil photography.
t
When Auto-fundus observation does not work, tilt the operation lever forward or backward to
unify the top and bottom of the image of the pupil. Then press the alignment button. The retina
appears on the observation monitor.
t
When the split lines do not appear clearly, Auto-focus will not work. Turn the focus ring and take
images using manual focus photography (see page 31).
t
Do not use the small pupil photography function if the patient’s pupil is large enough. The image
will be overexposed.
t
The image may contain flare around the edges of the image outside the photography range.