Canon CR-2 AF Digital Non-Mydriatic Retinal Camera Manual
34
5 Photography Auxiliary Functions
Diopter Compensation Photography
If the diopter of the patient’s eye is outside the range which is able to be adjusted by the focus
indicator, the photography mode is automatically switched to the diopter compensation photography.
indicator, the photography mode is automatically switched to the diopter compensation photography.
The CR-2 AF can provide appropriate images if the diopter of the patient’s eye is within the respective
ranges below.
ranges below.
• No compensation: –10 to +15 D
• (–) compensation: –31 to –7 D
• + compensation:
+11 to +33 D
AF and AS functions are not available in the diopter compensation mode.
Switching the diopter compensation mode
The diopter compensation mode can be switched in the following order by pressing the diopter
compensation button.
The diopter compensation mode can be switched in the following order by pressing the diopter
compensation button.
ON
ON
Diopter
compensation
indicator
1
Turn the focus ring to focus on the retinal image.
Once the diopter compensation mode is enabled, one of the diopter compensation mode lamps
lights and the diopter compensation indicator appears on the observation monitor.
The focus indicator is not available in the diopter compensation mode. Turn the focus ring and focus
on the retinal image until you can see it sharply on the observation monitor.
lights and the diopter compensation indicator appears on the observation monitor.
The focus indicator is not available in the diopter compensation mode. Turn the focus ring and focus
on the retinal image until you can see it sharply on the observation monitor.
ON
ON
Diopter compensation indicator
Diopter compensation
mode lamp
L-IE-5208A_CR-2_AF.indb 34
2015/02/13 11:33:45