Xosni:(posted 8499 days ago)Years ago Kodak used to publish different time:temp nomographs for different film:dev combinations. The slopes of the lines were oftentimes different, thereby indicating that different film:dev combinations reacted differently to temp changes. The slopes used to oftentimes be different for a particular developer at different dilutions. Today we tend to use the same time:temp chart for all film:dev:dilution combinations. Maybe that's because the differences aren't excessive, or, maybe Kodak and Ilford and the rest figure they can just leave it up to us to figure out.