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Does anyone have Ilfords Reversal PDF? Link is dead.

NortheastPhotographic

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Hi, everytime I try to navigate to Ilford's PDF on reversal processing I am stymied by a 404 error. Does anyone happen to have the doc and would be willing to share it?
 
OP
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NortheastPhotographic

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Yes! That's perfect, I've saved it in my records.

Do you happen to know if any bleach formulation can be used? Their recipe is a little unclear, but I have one based on Pot. Ferri. written down somewhere...
 

Anon Ymous

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Sperdynamite said:
Yes! That's perfect, I've saved it in my records.

Do you happen to know if any bleach formulation can be used? Their recipe is a little unclear, but I have one based on Pot. Ferri. written down somewhere...
Click to expand...

The ferricyanide bleach is a rehalogenating one and that's not what you need. You want a bleach that will remove the developed silver from the first developer. The one in Ilford's pdf is one of the those that can be used. You may want to use half the quantity of potassium permanganate, especially with some films. Before committing any serious work to this process you should do a test or two, especially the bleach part.
 

Ian Grant

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Sperdynamite said:
Yes! That's perfect, I've saved it in my records.

Do you happen to know if any bleach formulation can be used? Their recipe is a little unclear, but I have one based on Pot. Ferri. written down somewhere...
Click to expand...

Wrong type of Bleach , Potassium Ferricyanide is used with Potassium Bromide as a re-halogenating bleach for toning or re-development

For reversal you need a Potassium Permanganate or Dichromate bleach usually with dilute Sulphuric acid.

Ian
 

pdeeh

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Sperdynamite said:
Do you happen to know if any bleach formulation can be used? Their recipe is a little unclear,
Click to expand...

How so?
This is what is in that PDF and it seems perfectly clear:


You can of course use a bleach based on Potassium dichromate and Sulfuric acid, which unlike the permanganate bleach can be premixed and reused. The one in my cupboard is about 2½% and works very adequately. Some people don't like dichromate bleaches because of the greater difficulty of disposing of them safely and the toxicity of the dichromate.

If you search the forums you'll find all sorts of discussions about using persulfates and other hard to find chemicals and whatnot, but it's easiest just to use the Ilford recipe really I'd have thought.
 
Last edited:
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NortheastPhotographic

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You know what you're absolutely right. I must have not had my thinking cap on when I read it the first time, but it is indeed perfectly clear haha. Looks like I can order what I need from the Photo Formulary.
 

pdeeh

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hehe these days I generally have to read something three times and then go away and come back a couple of days later then read it another five times before it makes sense. I think it must be my age.
 
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