I will give a try to this stuff and use it as an alkaline fixer with the recipe below.
This is a pretty good price for someone who wish to use a classic sodium thiosulfate fixer.
For comparaison, Photographers'Formulary sold their Sodium thiosulfate hypo (penta) in 50 lbs for $125.95 US and imagine the shipping to Montreal for this !
With the others products needed the price is about 1.25$/liter. Similar to Ilford Hypam if you bought it in 5 Liters container and use the 1:4 dilution. But amonium thio have a capacity of 40 8x10/L.
TF-2 Alkaline
From Anchell Darkroom Cookbook 3th edition
This fixer is odourless, which I find a bit disconcerting as I usually rely on the smell to detect whether or not I have any on my hands!
However, it does have the big advantage that it washes out of film and paper very easily.
Water 750 ml
Sodium Thiosulfate 250 g
Sodium Sulfite 15 g
Sodium Metaborate 10 g
Water to make 1000 ml
Use undiluted for either film or paper. Follow development by a 60 second plain water rinse or a minimum five changes of water. Fix films for 3 times the clearing time, or a minimum of 5 minutes, agitating for a full 30 second each minute.
Fix paper for 10 full minutes with occasional agitation.
The capacity of TF-2 is 20 8×10″ prints or films per litre.
The 25kg bag will give you 100 liters of working solution.
Bogdan said me that this stuff keeps very well, as long as it is dry.
