Hubert Nerwin was the chief designer at Zeiss Ikon during the late 1930s. He designed the Contax II and Contax III models, the Contaflex twin lens reflex, the Tenax II and the Ikoflex cameras, among others.

After the war, he went to the USA, and worked for Graflex on the Combat Graphic camera, a rangefinder using 70mm film and looking like an overgrown Contax II. Later, he worked for Kodak and developed the Instamatic Cassette.