I prefer to use D76 diluted 1:1 as a one-shot developer when developing roll films in hand-held tanks. I have also used D76 as a multi-shot developer in its stock strength (i.e. no dilution) in large open-topped tanks for processing sheet film in hangers. The developer stays in the tanks and is reused over and over. The key to using D76 as a multi-shot developer is to keep CAREFUL records about how much film is processed and to replenish the developer according to Kodak's instructions.(posted 9655 days ago)