[1] Fiedler was born in Prostějov in Moravia, Austria-Hungary.
[2] He was regarded as an eccentric during his apprenticeship in Plzeň, and worked in 1905 and again in 1912 with Rudof Dührkoop in Hamburg, and from 1908 to 1911 with Hugo Erfurth in Dresden.
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.
[4] Fiedler adopted a face image as his emblem and claimed expertise in photographing picturesque women.
He stored exhibition photos with family in Moravia.