Sony DSC-TX30 - Manual (Page 116)

Hold the camera steady so as not to misalign the subject and the AF range finder
frame.
Notes
When you use the following functions, the AF range finder frame is disabled and a dotted line
appears instead. In this case, the camera works to focus on the subjects at the center of the
screen.
Zoom functions other than optical zoom
AF illuminator
When the focus mode is set to other than [Multi AF], you cannot use the Face Detection function.
If tracking focus is activated, the camera focuses with priority on the subject to be tracked.
Quickly choosing the priority subject
Touching the screen displays a frame, and then pressing the shutter button halfway down brings the
frame into focus. Touch to cancel the focus.
Focusing on subjects near the edge of the screen
If the subject is out of focus, do as follows:
1. Recompose the shot so that the subject is centered in the AF range finder (A), and press the
shutter button halfway to focus on the subject (AF lock).
2. When the AE/AF lock indicator (B) stops flashing and remains on, return to the fully composed shot,
and press the shutter button fully down.
Related Topic
Tracking focus
MENU items available for each shooting mode
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