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Jan de Jong replied to the thread Developing color as B&W, then bring it back to color?.Just to verify, you want to develop a c41 color film in black and white developer, then let it dry, make some scans for example and then... -
Jan de Jong replied to the thread A New Cuprotype?.You may want to check what I have posted on using tartaric acid instead of the thiosulfate . Iron-Copper a direct positive image...
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Jan de Jong replied to the thread A blended ferrocyanide print process.Agree, This is a drop taken direct from the FerroBlend developer,, no dilution. Mount with cover slip. Yes looks like paramecium, but...
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Jan de Jong replied to the thread A blended ferrocyanide print process.Checking a bit further with the microscope, there is no known organism that grows in 2% copper solution. It seems to be an alignment of...
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Jan de Jong replied to the thread A New Cuprotype?.From 2022, here my result then, with FAC and Copper sulfate only. left after exposure, right after wash. What remains is the reacted FAC...
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Jan de Jong replied to the thread A New Cuprotype?.Thank you, I like the result also, has good clearing of the whites and very good darks, It does not get as dark as in my FerroBlend...
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Jan de Jong replied to the thread A New Cuprotype?.Today lots of sun so started exposure this morning at 9-11, on some fresh Hazeltree leaves. The paper was coated earlier this week. This...
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Jan de Jong replied to the thread A New Cuprotype?.Thank you for the link, very interesting. it gives a nice overview of the possible things that can happen. This is similar way of...
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Jan de Jong replied to the thread A New Cuprotype?.The assumption in the pdf article if I take a shortcut that it was more an adhesion of chemicals rather than a solid forming, indicating...
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Jan de Jong replied to the thread A New Cuprotype?.Interested by the pfd by Vincenzo, I wanted to do some quick tests, to see if we have a process only reacting with the paper fibers or a...
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Jan de Jong replied to the thread A blended ferrocyanide print process.Yes, next on my list. First will try with some simple things to see how the 2 layers behave. Yes would certainly work, since it retains...
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Jan de Jong replied to the thread The Copper Sulphide process.You could try if you can "develop" to a darker tone with a mix of 3 gr K-Ferri 3 gr K-Ferro some citric Acid (ph has to be below 5 or...
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Jan de Jong replied to the thread A blended ferrocyanide print process.After the massive number of reactions here 😎 I'd just like to share a little variation. It started while in the making of some further...
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Jan de Jong replied to the thread Liquid Emulsion - which one to get in 2026 (EU)?.You can also order direct in the FOMA Bohemia shop, never had issues with that, it is slightly cheaper though. The liquid emulsion they...
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Jan de Jong replied to the thread A New Cuprotype?.Leaving the previous discussion behind, i did some quick experiments tonight. Actually I had in mind doing some other experiment use...
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