Leica is a camera brand produced by a German company of the same name, first introduced in 1913. The “Leica” brand is owned by Leica Microsystems AG and authorized for use by Leica Camera AG and Leica Geosystems AG. The Leica camera is the world’s earliest 35mm camera, and is famous for its reasonable structure, excellent processing, and reliable quality. It is the first choice for military cameras and the leader in camera collections.