Canon PowerShot SX710 HS 手册

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页码 177
74
Before Use
Basic Guide
Advanced Guide
Index
Camera Basics
Auto Mode / 
Hybrid Auto Mode
Other Shooting Modes
P Mode
Tv, Av, and M Mode
Playback Mode
Wi-Fi Functions
Setting Menu
Accessories
Appendix
 
If faces are not detected, or when only gray frames are displayed 
(without a white frame), up to nine green frames are displayed in 
the areas in focus when you press the shutter button halfway.
 
If faces are not detected when Servo AF (
the AF frame is displayed in the center of the screen when you 
press the shutter button halfway.
 
Examples of faces that cannot be detected:
 
-
Subjects that are distant or extremely close
 
-
Subjects that are dark or light
 
-
Faces in profile, at an angle, or partly hidden
 
The camera may misinterpret non-human subjects as faces.
 
No AF frames are displayed if the camera cannot focus when you 
press the shutter button halfway.
Choosing Subjects to Focus On (Tracking AF)
 Still Images 
 
Movies
Shoot after choosing a subject to focus on as follows.
Choose [Tracking AF].
 
[Tracking AF].
 
[
] is displayed in the center of the 
screen.
Choose a subject to focus on.
 
Aim the camera so that [
] is on the 
desired subject, and then press the [ ] 
button.
Center
 Still Images 
 Movies
One AF frame is displayed in the center. Effective for reliable focusing.
 
A yellow AF frame is displayed with [
] if the camera cannot 
focus when you press the shutter button halfway.
 
To reduce the AF frame size, press the [
] button and set 
[AF Frame Size] on the [
] tab to [Small] (
 
The AF frame size is set to [Normal] when you use the digital 
zoom (
 
To compose shots so that subjects are positioned at the edge or 
in a corner, first aim the camera to capture the subject in an AF 
frame, and then hold the shutter button halfway down. As you 
continue to hold the shutter button halfway, recompose the shot 
as desired, and then press the shutter button all the way down 
(Focus Lock).
 
The AF frame position is enlarged when you press the shutter 
button halfway with [AF-Point Zoom] (
Face AiAF
 Still Images 
 Movies
 
Detects people’s faces, and then sets the focus, exposure (evaluative 
metering only), and white balance ([
] only).
 
After you aim the camera at the subject, a white frame is displayed 
around the person’s face determined by the camera to be the main 
subject, and up to two gray frames are displayed around other 
detected faces.
 
When the camera detects movement, frames will follow moving 
subjects, within a certain range.
 
After you press the shutter button halfway, up to nine green frames are 
displayed around faces in focus.