German Society for Photography, Cologne Chair (DGPh)
Member since 1975. After board activity 2002 honorary member.
German photography academy, Leinfelden-Echterdingen Chair (DFA)
Member since 1977. After board activity 1992 honorary member.
Professional association of visual artists (BBK-OWL).
Member since 1967. Board activities
Association of freelance photo designers, Stuttgart Chair (BFF)
Member since 1970. Since 1988 corresponding advisor.
Association of photography education, Bielefeld Chair (FFA)
Member since 1984.