Thanks...thousands of ingredients, all tested for impurities...rather impressive I think. Did you omit some of the other manufacturers for cause, e.g., Adox, Foma, Bergger, etc.? Are the "less rigorous standards" reflected in the quality of the film? There have been occasional statements here and elsewhere about the problems with some of these films. Indeed, I know of several well known photographers who gave up using Bergger film because of the quality of the film.