 Nyorai kupfuurira kweiyi ndima - Greenberg akawana mavambo ake mumafirimu achishanda muchitoro chemakamera echinyakare chababamunini vake paakanga ava namakore gumi namatatu. Pakupedzisira akavamba kambani yake yefirimu neyokutora mifananidzo, achiwana maruramiro okuona mifananidzo yeInternational and Universal Exposition ya1967kana kuti Expo 67, sokuzivikanwa kwaiwanzoitwa muMontreal. Muna 1973 akawana Astral Communications uye akazoibatanidza nekambani yake Ann Green Photos, yakatumidzwa zita raamai vake Ann Greenberg. Nokukurumidza pashure pacho, yakava imwe yemakambani anotungamirira anogadzira mafirimu muCanada. 