sentences:  He belonged to the circle of Jaroslav Hašek and Egon Erwin Kisch and in 1916 married Erna Hauswald in Dresden where he occupied a studio at Sedanstraße 7.From 1919, and coincidental with his friendship with "Madame d'Ora" (Dora Kallmus, of Vienna who was later to move to Paris) he began to work with a 9×12 folding camera and in 1924 became one of the first professional photographers to use a Leica.After expanding his studio in 1925, he took part in the exhibition ""Film und Foto"" in Stuttgart.