FX-39 II Balanced grain, sharpness and contrast   FX-39 is based on Willi Beutler´s formula for Neofin Red, and further developed by Geoffrey Crawley. Makes very good use of the film’s full ISO-rating. It’s possible to double the films’ ISO by adjusting the development times. FX-39 can be used in various dilutions in order to … Continue reading FX-39 TYPE II