Canon EOS Rebel T7i Telephoto Lens Kit 业主指南

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页码 882
S
 Selecting the AF Area and AF Point
124
1
Press the <S> or <B> button 
(
9
)
.
Look through the viewfinder and 
press the <S> or <B> button.
2
Press the <B> button.
Each time you press the <B> 
button, the AF area selection mode 
changes.
Selecting the AF Area Selection Mode
In the <8x> and <vXc> modes, you cannot select the AF 
area. Single-point AF (fixed at center) is applied for shooting.
In Basic Zone modes, if you change the shooting mode or set the power 
switch to <2>, the setting will revert to the default.
In Creative Zone modes, if you set [6: AF area selection method] under 
[54: Custom Functions(C.Fn)] to [1:S9Main Dial], you can select the 
AF area selection mode by pressing the <S> or <B> button, then turning 
the <6> dial (p.393).