With the new Android lollipop on the Samsung Galaxy S4, it is now possible to place a shortcut to the camera on the lock screen even if it is secured by pin or pattern. This was previously not possible. With this feature you can now take faster pictures and videos with the Samsung Galaxy S4, since the pin does not need to be entered for photographing.
So you can use the shortcut for the camera on the lock screen of the Samsung Galaxy S4, you have to like the following in Android Lollipop enable this:
Opens from the home screen menu and then the settings. Jump on the tab "My Device" and then select Lock Screen. In this submenu, you can now activate the "Quick access for camera" option by your set a hook in the checkbox behind it. Finish! From now on you are on your Samsung Galaxy S4 lock screen bottom right have a small icon with which you can start the camera. Wipe this icon simply opens into the center of the screen and the camera on your Samsung Galaxy S4 directly from the lock screen.
You know now how to activate the camera Quick Start function from the lock screen in Android lollipop.