hɪz paɪənˈɪɹɪŋ wˈɜːk æz ɐ sˌɪnɪmɐtˈɑːɡɹəfɚ fɹʌm ðɪs tˈaɪm ˌɔn lˈeɪd ðə faʊndˈeɪʃənz wˌɪtʃ ˈʌðɚ kˈæmɹəmˌɛn ʌv dʒˈɜːmən sˈaɪlənt fˈɪlm sˈʌtʃ ɐz kˈɑːɹl fɹˈuːnd, fɹˈɪts ˈɑːɹnoʊ wˈæɡnɚ ænd kˈɑːɹl hˈɑːfmən wɜːɹ ˈeɪbəl tə bˈɪld.
His pioneering work as a cinematographer from this time on laid the foundations which other cameramen of German silent film such as Karl Freund, Fritz Arno Wagner and Carl Hoffmann were able to build.