It's the other way around. Post-war "Zeiss" west Germany scopes are actually made at the Hensoldt factory to Hensoldt's designs. Since about 1930 Hensoldt in Wetzlar was a subsidiary of Carl Zeiss, Jena. After 1945 Jena was in east Germany, GDR, and the original Zeiss factory was under communist control. Those parts of the Zeiss combine in western Germany were reorganized as "Carl Zeiss (West)". Zeiss west continued producing scopes and binoculars of Hensoldt designs (Dialytan, Diasta, Diatal. Diavari, Diapi etc.)at the Hensoldt, Wetzlar factory and sold them under the established Hensoldt name. About 1970 Zeiss West renamed the Hensoldt made line, selling them under the "Zeiss" label from then on. So the "made in West Germany" Zeiss scopes are really "Hensoldt" ones.