Two other developers that work well with Fomapan 100 are 510 Pyro and Obsidian Aqua. I think the Pyro has a slight edge in tonality, but the Obsidian Aqua has an edge on grain size and sharpness. If you are using Fomapan 100 for the first time be sure you take a look at the reciprocity chart, it is like no other film!