Canon CR-2 AF Digital Non-Mydriatic Retinal Camera Manual
31
The section describes how to use manual focus photography, x2 photography, small pupil
photography, diopter compensation photography, and anterior segment photography. Instructions
are also included for connecting an optional external monitor.
photography, diopter compensation photography, and anterior segment photography. Instructions
are also included for connecting an optional external monitor.
Manual Focus Photography
Turn the focus ring during fundus observation. AF and AS functions will be released and the system
will switch temporarily to manual focus photography.
Press the shutter release button halfway until a beep sounds: this indicates that AF and AS functions
are available.
will switch temporarily to manual focus photography.
Press the shutter release button halfway until a beep sounds: this indicates that AF and AS functions
are available.
Shutter Release Button
The shutter release button has two steps. The first step is to press the button halfway down; the
second step is to press the button all the way down.
The shutter release button has two steps. The first step is to press the button halfway down; the
second step is to press the button all the way down.
1
Turn the focus ring to align the split lines into a single line.
The image enlarges while the focus ring is being turned.
-1.25D
Focus ring
Split line
Correct
Incorrect
Incorrect
When the split lines do not align
If the diopter of the patient’s eye is outside the range of -10 to +15 D, it is not possible to focus
with the focus indicator. In this case, use the diopter compensation photography function (see
page 34).
If the diopter of the patient’s eye is outside the range of -10 to +15 D, it is not possible to focus
with the focus indicator. In this case, use the diopter compensation photography function (see
page 34).
2
Perform a preliminary check before taking photos.
a. The photography ready lamp lights green.
b. The working distance dots appear sharpest.
c. The working distance dots are inside the AS guide.
d. The split lines form a single line.
b. The working distance dots appear sharpest.
c. The working distance dots are inside the AS guide.
d. The split lines form a single line.
ON
ON
b,c
d
a
5
Photography Auxiliary Functions
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