Solution
1. Press the < Power > button on the camera.
2. Press the < MENU > (

) button.
3. The following screen appears.

Operate the < directional buttons > to select the [Shooting] (

) tab.

Operate the < directional buttons > to set [AF Frame] to [Fixed frame].
After the settings are completed, press the < MENU > (

) button.
4. The following screen appears.
If the frame is displayed at the center of the monitor, this completes the setting process.