My favorite combination is APX100 with Rodinal 1+75 at 20B0C, during 15 minutes. Agitation during the first 30 seconds, then every minute. This is for 35mm film with a focomat condenser enlarger. The recomandations from Agfa are giving me very contrasty negatives, even too contrasty for my colour enlarger. Greetings, Frederik(posted 8634 days ago)