Quote Originally Posted by c6h6o3
It wasn't good enough for George Eastman. That's why he invented film, the key to the success of the Brownie camera.
He started Kodak making glass plates, this was limited to LF cameras and his purpose was to bring photography to everbody, thus the research and eventual process of coating acetate cellulose. Coating either one is very similar, glass plates were good enough to get him started and produce good quality negatives (as a matter of fact they are better than acetate film for definition or resolution) but could not be rolled or made in smaller sizes for smaller cameras.