Samsung Galaxy S4: How to Zoom In or Zoom Out in the Camera App in Android 4.4 Kitkat

A useful feature that has been available in the Samsung Galaxy S4 since this phone got update to Android 4.3 Jelly Bean is the ability to change the Volume key function in the Camera app. If in the previous version you're only allowed to use the Volume key to zoom in or zoom out, now you can assign the Volume key as the camera key or the record key.

See also: How to Change the Volume Key