Complex sentence: Braun worked exclusively as a photographer for Hoffmann from 1933 on, and this position enabled her to travel--accompanied by Hoffmann--with Hitler's entourage, as a photographer for the NSDAP.
Split into simpler sentences: Braun worked exclusively as a photographer for Hoffmann from 1933 on. This position enabled her to travel--accompanied by Hoffmann--with Hitler's entourage, as a photographer for the NSDAP.