Ingenious product that the Panasonic DMC LX 7 makes it a real "one-hand compact camera", ie switching on and everything else can be done with one hand, it has taken no separate lens cap, or be reattached after being switched off. At first I was skeptical because I had to turn a ring on the camera, which actually has a different meaning. After consulting with the seller and some approaches during disassembly of the corresponding ring to exchange the original ring of the camera against the special automatic lens cap succeeded. The special automatic lens cap must be turned as far until he - just like the original ring - locked on the end of the rotation and therefore is stuck on the camera.