How to be a color developer containing (Reversal) Bath

halfaman · Jul 25, 2020

When both components are on the same bath, fogging and colour development happen at the same time. Everything relies on fogging being much faster than development, and with the right formulation it should.

With separate baths, fogging is perfomed until completion before CD without rushes and good results should be easier to get.

mohmad khatab · Jul 26, 2020

halfaman said:
When both components are on the same bath, fogging and colour development happen at the same time. Everything relies on fogging being much faster than development, and with the right formulation it should.

With separate baths, fogging is perfomed until completion before CD without rushes and good results should be easier to get.

Why doesn't this fog happen with Tetenal' three-step process?
- Why does this haze not happen with process (E4)>?

halfaman · Jul 26, 2020

I think we are not talking about the same thing. I was refering to the fogging stage needed between the first development and the colour development, and for sure it must happen in any sucesfull reversal process. In standard E-6 fogging is chemical and it is a stand-alone stage. In E-4 and Tetenal 3-bath E-6 fogging is also chemical but included in the CD bath.

If your images have a haze, then it is a different issue.

mohmad khatab · Jul 26, 2020

halfaman said:
I think we are not talking about the same thing. I was refering to the fogging stage needed between the first development and the colour development, and for sure it must happen in any sucesfull reversal process. In standard E-6 fogging is chemical and it is a stand-alone stage. In E-4 and Tetenal 3-bath E-6 fogging is also chemical but included in the CD bath.

If your images have a haze, then it is a different issue.

I've never heard of (Fogging Bath) - I only know (Riversal) Bath
Another name is (re-exposure) Bath
But I've never heard of this (fogging Bath)
Perhaps in other formulas from other planets than other universes.

halfaman · Jul 26, 2020

I think fogging is very common English term in photography.

https://en.m.wikipedia.org/wiki/Fogging_(photography)

The reversal bath is a chemical fogging, the re-epoxure is a light fogging.

mohmad khatab · Aug 30, 2020

halfaman said:
I think fogging is very common English term in photography.

https://en.m.wikipedia.org/wiki/Fogging_(photography)

The reversal bath is a chemical fogging, the re-epoxure is a light fogging.

you are a good man ,
I don’t know why you call yourself half a man.
I see you as a decent man and you deserve to be a man of full manhood.
In general, I wanted to thank you and greet you ,, you helped me a lot and supported me and you were patient with me ,,
- And I would like to tell you that the operation (AP41) - indeed, it succeeded and produced very, very impressive results equivalent to and perhaps superior to (E6) official.
I used the re-exposure solution of the Fuji formula that was mentioned in the course of the discussion, and of course without insulation, I just added Calgon as an alternative to those very expensive materials and it did the job and did the job perfectly.
- Actually I want to publish the results, but the roller with me is 120 mm, and I could not scan it, but I filmed the roller with video, but the forum does not display the video clips, unfortunately, so I will try to scan in As soon as possible, God willing,
Thank you all, and may God bless you all

halfaman · Aug 31, 2020

Congratulations, Mohmad! Blad to see you have succeed in this project.

Hope you can find the way to upload some examples.

mohmad khatab · Aug 13, 2021

halfaman said:
Congratulations, Mohmad! Blad to see you have succeed in this project.

Hope you can find the way to upload some examples.

I apologize for the delay in replying, my dear halfman
Actually this post was lost and I didn't know how to find it,,
The attached photos are using the Agfa process (AP41) Valvia 100 . film

mohmad khatab · Aug 13, 2021

halfaman said:
When both components are on the same bath, fogging and colour development happen at the same time. Everything relies on fogging being much faster than development, and with the right formulation it should.

With separate baths, fogging is perfomed until completion before CD without rushes and good results should be easier to get.

< Reversal solution>
Calgon.... 3.0 g
Stannous chloride dihydrate 1.0 g
p-aminophenol 0.1 g
Sodium hydroxide 8 g
Glacial acetic acid 15 mL
Water to make 1,000 mL
pH 6.00
Color developer
Water 750 ml
Sodium sulfite, anh. 2.0 g
Potassium carbonate 80.0 g
Hydroxylamine sulfate 2.0 g
Ethylenediamine, anh. 8.0 g
Potassium bromide 2.0 g
Ethyl-oxy-ethyl-para-phenylenediamine sulfate 6.5 g
Water to make 1,000 ml pH = 11.6 - 12.0
Does your suggestion revolve around combining these two solutions together in one solution or what?

How to be a color developer containing (Reversal) Bath

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