In 1865 Ferrez has opened his own studio at Rua S. Jose, center of Rio de Janeiro, which was by the time the center of the brazilian empire. He was denominated Photographo da Marinha Imperial and his work with images increased through his life. He photographed Brazil from south to north. His masterpieces are the great albums of railway constructions and the great panoramic vews of the city of Rio de Janeiro.
Ferrez died in 1923 and left thousands of pictures and reproductions of his works.