Leica released a video that details the meticulous manufacturing process behind their lenses. The standard Leica lens is made in Germany, and consists of 100 different parts. The beautiful thing about the video is how much of the process is done by hand. While robots are in charge of things like engraving serial numbers, the etchings are then hand-lacquered. In the video you can see humans painting, cementing and testing the lenses among other things. We're not so useless after all ;-)