With the currrent lamentation over Xtol issues and the jubilant reception for Adox XT-3 there's hardly a mention of EcoPro.
Any reason for that?
Just curious is all, it seems it would have been an easy alternative choice.
I've mixed and used 2 5L bags of EcoPro. It has worked perfectly for me. I can't distinguish it any way from Xtol, but that's purely an in-use impression; I did not do any careful tests or plot H&D curves, and I also have only been using Xtol for 3 years or so -- maybe 30 rolls of film -- so I'm nowhere near as knowledgeable about it as many folks on this forum. So take my comment with that context in mind.
In any case, I use EcoPro the same way that I've used Xtol -- i.e. one-shot and same dilution (1+1), times/temperatures, and Paterson tank processing.
The one sort of calibration that I have done is to process a snip test when I first mix it, and then, over time, process new snip tests to make sure it isn't losing any potency in storage. I'm about to use the last of my latest batch of it, which is now 6 months old, and it has lost no activity that I can see within the limits of my snip test process. I've stored it in full, tightly capped bottles over that period.
Anyway, hope that helps. I wouldn't hesitate to use it again, although I'd like to find a liquid concentrate that I'm happy with; I'm not crazy about mixing dry chemicals in 5L batches and then juggling the storage in smaller bottles to keep it fresh. But that's a different saga.
