Disable autofocus when recording video?

[linbmcd]

Help! I've been trying to record a video using my S4 to put on my website, but when I view the recorded video, it looks like the phone continues to adjust the focus throughout the whole process, causing the picture to look like it's moving in and out slightly. Is there some way to disable this during recording? Thanks!

 

[SpookDroid]

Just touch the screen while recording. It'll focus where you pressed and stay that way unless you select the AF button that appears (AutoFocus trigger); then it goes back to Auto Focus mode.