iPhone 5 camera doesn't focus while recording video

Hi guys,

I just bought an iPhone 5 and have been testing the camera when I faced the problem.

Before tapping the red dot to start recording video, the camera focuses if I move it around. But after starting the recording tha camera won't focus anymore.

For example if I start recording a close object then move the camera further from it, it doesn't changes the focus automatically, the video is blurred. I have to tap the screen to make it focus again.

It's really annoying, my 4S didn't have a problem like this, it automatically adjusted the focus during video recording.