ADOX FX-39 one-shot developer is designed for detail-rich and extremely sharp negatives. The developer is based on the Beutler Formula for Neofin Red, but was further developed by Geoffrey Crawley. It makes very good use of the film's full ISO-rating.
It is possible to double the films ISO by adjusting the development times. FX39 can be used in various dilutions in order to develop low-sensitivity films with at least 6-minutes developing time. Especially good for films up to 200 ASA. Standard dilution is 1+9. At 1+14 the time should be multiplied by 1.5 and at dilutions of 1+19 develop for twice as long as by standard dilution.
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