Adox FX-39 is based on Willi Beutler’s Neofin Rot formula, but was improved in all parameters.
FX-39 Type II Film Developer is a compensating developer providing excellent detail rendition, sharpness and resolution. Developing for effective film speed is high. The compensating effect can be well controlled in a very wide range by variations in dilution. The compensating effect can be precisely adjusted to the subject contrast and film type.
There remains only one reason for not using FX-39 exclusively and that is obtaining the absolutely finest grain. If you want the finest grain possible than finest grain developers like Adox Atomal are the optimal solution.
FX-39 harmonizes excellently with all low and medium speed films. In the ISO 400/27° class the best results are obtained with Kodak Tri-X, Kodak T-Max 400, Ilford Delta 400 and Fuji Neopan 400. If needed, FX-39 Type II Film Developer can also be used for increasing film speed by 1 stop (push processing).
FX-39 is now not only produced, but also branded and distributed by Adox.
- 500ml Concentrate
- Standard Dilution: 1+9 “One-Ohot” Application
- High dilution: 1+19 ”one-shot” application for increase of the compensating effect (by 75% extended developing time). By doing this film speed is a bit lower. So it is possible to trade compensating effect for film speed in a certain range.
- Developing times are listed on Digitaltruth