I'm completely in agreement with Scott above. I was introduced to Diafine during a photo class. The instructor didn't want students fussing over the details, plus we were shooting a wide variety of film. Diafine was superb. In my basement darkroom, temperature is often hard to control. I heat up a gallon in a closet for a couple of hours, and I'm ready to go. Personally, I don't understand why 2 bath developers aren't used more. Two variables - time and temp - are standardized immediately. As Stephen Anchell says in "The Film Developing Cookbook," 2 bath developers are for the photographer who doesn't want to obsess about development. It works for me!(posted 8138 days ago)