Adox FX-39II developer failure

Robert Ley said:

I started shooting B&W film for the first time in many years and trying new films and developers. I got some Adox HR-50 and many on the forum thought that FX-39 was a good developer to use with this film, so I tried it. I picked up a 500ml bottle and used about a third of it for a few rolls of film about 4-5 months ago. Last week I tried it again and notice when I mixed it that it was a little dark, Having never used this developer before and I had seen Rodinal get a little dark but still worked fine, I forged ahead and processed one roll. It came out terribly underdeveloped and I found out that this developer doesn't last as I have used it.

Does anyone have a strategy for making this developer last a little longer than 5 months?

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retina_restoration said:

Decant it into 100ml bottles if you want to preserve it for more than a few weeks once opened.

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Robert Ley said:

longer than 5 months

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koraks said:

In general with developers, if you seal the concentrate from oxygen, it should last longer. So do as @retina_restoration says:


@ADOX Fotoimpex does not appear to specify a shelf life for the opened concentrate.

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