I bought my last batch of Ascorbic acid (vit C) off ebay, believe it or not. Very cheap. From a chemical wholesaler in Germany, it is 100% pure. I've used quite a bit already and I've not had to compensate one bit.
If you have problems getting hold of Potassium Bromide (KBr) for your faster films, try out iodide/iodine enriched salt. Though not a topic in the Caffenol Cookbook, several of the authors have tried it out and posted their results on flickr.
Eirik (aka Ezzie)
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Sodium carbonate, you can get from swimming pool suppliers, almost all "PH plus" are Sodium carbonate.
1 1/2 years ago I posted on my blog where to buy affordable Vit-C. This ebay-seller is very friendly and he assured me that he ships worldwide. The seller is still active. Reasonable price and shipping: http://caffenol.blogspot.de/2011/06/...de-seller.html
Vit-C: many supermarkets in Germany, every pharmacy, 2 - 3 Eur/100g
Washing soda waterfree (brand: Heitmann) I get at the local supermarket in Germany, 1 Eur/500g. Also at the "DM-Markt". In France there is sold a "soude cristeaux" containing 50 % water in supermarkets.
Instant coffee: every Aldi, Lidl, supermarket in Germany. Buy the cheapest. Here 3.60 Eur/200g
Best - Reinhold
I just wanted to know if anybody has any info for plus-x 125 iso.I read somewhere that fp4 is around 12 min @ 20c . I have all the stuff i need,I had to make my own sodium carb from baking soda.
What i would like to know is the time for fp4 a good starting place for the plus-x being iso 125. I got 60 rolls dated 2006, It works fine in rodinal but I want to try coffee.
Any info would be great. thanks al.b