With JOBO chemistry used in JOBO processors you can be sure to achieve optimal results. Every time. Our chemistry has been designed for the rotary process. Only the highes quality ingredients are being used. JOBO has done extensive testing in its own lab and with partner labs to provide you with the chemistry that will help you to make the most of your exposed film: For your best image! ECN-2 chemistry to make 2.5 liters of working solution for processing 30 rolls of motion picutre film.