Quote Originally Posted by seadrive View Post
Actually, I don't think most people use an acid stop bath with film. I use two 45-second plain water rinses between the developer and the fixer.
While a stop bath is optional, I would recommend it if you plan on using your fixer to capacity. It will prevent carry over of any developer into the fixer and extend its life. It can also improve process consistency as development will continue during the rinse, albeit at a reduced rate. But, as always, YMMV!