Unfortunately, Se just doesn't cut it....When I'm done with this, I'd be interested in replicating your results, though I wish you could do it with Se rather than Au...
...Considering how expensive gold toner is (even if I scratch-mix it in the future), it's best to start off MGWT FB as cool as possible right out of the developer, so I'll be using Neutol NE with this paper. The other developers can probably be neutralized, but that would undoubtedly take more time in the toner and, consequently, more gold...
First, MGWT FB is the only Ilford paper that starts out with minimal optical brightening agents (OBAs) and does not "anchor" them, so what little there is can be washed out. I find OBAs, and the metamerism they induce, distasteful. One can pretty much rank Ilford's current FB offerings in order of OBA content, with MGWT FB at the bottom and MGCT FB exhibiting the most. I find MGCT FB rather garish in this respect.May I ask - it's a genuine enquiry, no snippiness or sarcasm intended - if one wants a cool or neutral tone from a paper, why start with a WT type ?
Is it that there are characteristics of the Ilford WT paper unrelated to it's warmth that cannot be achieved with other cool or neutral tone papers?
Rafal, just thinking out loud (I was going to first suggest altering D-72 to use ascorbate instead of HQ as a starting point but I see you're already using a Dimezone-ascorbate formula). Have you tried substituting or including benzotriazole in DS-14?
May I ask - it's a genuine enquiry, no snippiness or sarcasm intended - if one wants a cool or neutral tone from a paper, why start with a WT type ?
One method you may want to investigate is bleach/redevelopment. Changing the bleach type should change the final tone by altering the silver, though I haven't tried this myself. I did read about this somewhere, but it was obscure and I don't remember where.
Maybe you were luckier than you think. A bleach which contains Ammonia in anything but trace quantity will have solvent property, which means: good bye, print highlights!For example, I found one once that had ammonia in it that was interesting, but I didn't write it down unfortunately.
Maybe you were luckier than you think. A bleach which contains Ammonia in anything but trace quantity will have solvent property, which means: good bye, print highlights!
That is certainly possible. My memory is not so great and I don't really keep notes. It is possible I used Ammonia in the Sulphide bath instead of the bleach.
At any rate, I was moving some stuff today and in a moment of kismet found the Ephraums book, Creative Elements. Here is the bleach for blue/black that he gives for redevelopment.
Water at 40ºC
CopperSulphate 50g
Sulphuric Acid 10% 65ml
Sodium Chloride 50g
Water to 1000ml
Redevelopment in a Metol/S. Sulphite/S. Carbonate developer.
Hope that helps.
This is the formula that I plan to try. I have heard that copper sulfate can weaken a papers emulsion. Not sure if that will be an issue or not. I guess you never know til you try it. Interesting to me though that no one on APUG has commented on using this formula. Atleast there is nothing in the archives about it.
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