Canon IXUS 85 IS User Manual page 91

Changing the AF Frame Size
When the [AF Frame] is set to [Center], the AF frame can be resized
to correspond to the subject. Select [Small] to constrict the focal
frame to suit a small subject or to focus on a particular area of a
subject.
1
Select [AF Frame Size].
1. Press the
2. In the
button to select [AF Frame Size].
2
Accept the setting.
1. Use the
[Normal] or [Small].
2. Press the
The setting is configured to [Normal] when the digital zoom
or digital tele-converter is used.
button.
menu, use the
or button to select
button.
or
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