Canon 500D Manuale Utente

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117
Using AF to FocusN
3
Focus the subject.
 
Aim the AF point over the subject, 
and hold down the <A> button.
X
The Live View image will turn off, the 
reflex mirror will go back down, and 
AF will be executed.
X
When focus is achieved, the beeper 
will sound and the Live View image 
will reappear.
X
The AF point used to focus will be 
displayed in red.
4
Take the picture.
 
Check the focus and exposure, then 
press the shutter button to take the 
picture (p.106).
 
You cannot take a picture during autofocusing. Take the picture only 
while the Live View image is displayed.
 
AF is not possible with Remote Switch RS-60E3 (sold separately).