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In page Film stock:

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Blair's new company supplied European filmmaking pioneers, including Birt Acres, Robert Paul, George Albert Smith, Charles Urban, and the Lumière Brothers. By 1896, the new movie projector required a fully transparent film base that Blair's American operation could not supply. Eastman shortly thereafter bought the company out and became the leading supplier of film stock. Louis Lumière worked with Victor Planchon to adapt the Lumière "Blue Label" (Etiquette Bleue) photographic plate emulsion for use on celluloid roll film, which began in early 1896.[citation needed]