Interchangeable Lens Digital Camera ILCE-5100

Center Lock-on AF

When you press the center button, the camera detects the subject positioned in the center of the screen and continues to track the subject.

  1. MENU (Camera Settings) → [Center Lock-on AF][On]
  2. Align the target frame (A) over the subject and press in the center of the control wheel. To stop tracking, select MENU (Camera Settings) → [Center Lock-on AF][Off].

  3. Press the shutter button fully down to shoot the image.


  • [Center Lock-on AF] may not function very well in the following situations:
    • The subject is moving too quickly.
    • The subject is too small, or too large.
    • The contrast between the subject and the background is poor.
    • It is dark.
    • The ambient light changes.
  • Lock-on AF does not work in the following situations:
    • In [Sweep Panorama] mode
    • When [Scene Selection] is set to [Hand-held Twilight] or [Anti Motion Blur]
    • When shooting in Manual Focus mode
    • When using the digital zoom
  • When the subject to be tracked disappears from the screen, Lock-on AF is released.
  • When [Center Lock-on AF] is set to [On], the camera may not be able to resume tracking for a while after it loses the track of the subject.