He was born on 20 October 1912 in Vilnius and died on 31 May 1992 in Kraków.
Founding member of ZPAF since 19 March 1947.
Honorary member of ZPAF since 19 February 1968.
He gained his photographic education in Vilnius under the supervision of Jan Bułhak. In 1937 he moved to Krzemieniec, where he worked with Stanisław Sheybal in the photographic studio the latter founded at the Krzemieniec Lyceum. In 1939-1943, they ran the “Art” Photographic Company together. Shortly after the war, he moved to Kraków, where he was employed at Józef Rosner’s photographic studio and started studying at the Film Institute. He started to collaborate with the Przekrój weekly as a photographer and with the Polish Film Chronicle as a cinematographer. In the 1950s and 1960s, Hermanowicz travelled extensively, documenting the changes that were taking place in Poland. He published several albums with landscape photography, including The Prądnik Valley (1968), In the Nida River Basin (1982), The Żywiec Land (1982), The Tatra Mountains (1988).
He chaired the Artistic Board of ZPAF from 1958.