Sony Alpha SLT-A37 Handbook page 112

– The subject is moving too quickly.
– The subject is too small, or too large.
– The contrast between the subject and the background is poor.
– The subject is under dark lighting.
– The ambient light changes.
• The Object Tracking function cannot be used when the exposure mode is set to
Sweep Panorama, 3D Sweep Panorama, Tele-zoom Continuous Priority AE or
[Hand-held Twilight] in Scene Selection is used, the manual focus function is
selected.
• The camera stops tracking a subject when the subject moves off of the screen.
To preferentially-track the face
You can select whether to preferentially-track a certain face or not when the
camera detects that face during object tracking.
MENU button t
When the face is not visible on the screen, the camera tracks the body, and
when the face is visible, the camera tracks the face. If the targeted person
disappears from the screen while the camera is tracking, and then returns to
the screen, the camera focuses on that face again.
• If the camera tracks a face using the Object Tracking function with Smile
Shutter turned on, the face becomes the target of the smile detection
feature.
• If you set the detected face as a target, even when [Face Priority
Tracking] is set to [Off], the camera tracks the body when the face is not
visible. If the targeted person disappears from the screen while the
camera is tracking, and then returns to the screen, the camera focuses on
that face again.
112
4 t [Face Priority Tracking] t [On]
Adjusting the focus