I've started using amidol again and am wondering about the Fein's formula I found on Ed Buffaloe's site. It uses a lot more citric acid than any other formula I have seen in print (13.5g), as well as the relatively large amount (58.5g) of sodium sulphite. Does anyone have any experience with this developer and J&C's pwt paper? I've been using the MAS formula (with and without bzt) so far, but want to see about the Fein's as an alternative. The bzt I have is mixed in a 1% solution, so I'm thinking that the 0.8g of the dry chemical can be used as a solution of 80ml, for the sake of convenience. Easier to draw off 80ml than using the scale for such a small amount.
Ed's description deals with the use of this developer with azo paper, but I'm interested in an enlarging paper formula. Can anyone offer ideas about the keeping properties, activity level or other insights which may affect the use of this developer on enlarging paper? It would be nice to find an amidol formula which keeps better (and would last a couple of days) in a jar, for a longer than 1-shot time frame. Any other formulas out there for enlarging paper which would be worth trying? Thanks for any ideas. tim
P.S. Ed's site link http://unblinkingeye.com/Articles/Amidol/amidol.html
Ed's description deals with the use of this developer with azo paper, but I'm interested in an enlarging paper formula. Can anyone offer ideas about the keeping properties, activity level or other insights which may affect the use of this developer on enlarging paper? It would be nice to find an amidol formula which keeps better (and would last a couple of days) in a jar, for a longer than 1-shot time frame. Any other formulas out there for enlarging paper which would be worth trying? Thanks for any ideas. tim
P.S. Ed's site link http://unblinkingeye.com/Articles/Amidol/amidol.html