CD-1 Developing agent with CD-4

[VesaL]

Hello!
I have old Soviet union era Color Negative Film. Some folks develop these with C41. However the end-result and color shifts varies because many factors (chemicals used, developing temp & time.)

After long search, I have acquired the CD-1 chemical. Does anyone have even slightest idea, does CD-1 & CD-4 developer like each other, if I add CD-1 into readymixed C41 kit (tetanal Colortec) ?

Many thanks in Advance =0)
Regards,
VesaL

 

[lantau]

Since you went through the trouble of obtaining CD1 it makes no sense to add it to C41 developer. CD4 is still going to be in there and will be active, along with your CD1. So you'll get a mixed reaction and you could just ad well simply use normal C41 dev.

Better to mix the proper CD1 developer if you can.

I have an old roll of exposed Agfa Instamatic colour film from a relative. It wouldn't survive the high temp C41 process and so I'm thinking to mix the recipe for the real developer I found here but use CD4 in it, because I have that. The results won't be great in any case, so it doesn't matter that incorrect dyes will be formed.

If I get anything that can be salvaged by digitising the film I will be happy.

 

[Stanislav Boščík]

What kind of film is it? Which process this film must be processed with? There are differences! Note that some ORWOs from that time are to be processed with 23°C and higher temperature would melt the emulsion.
I have some recipes for few color developers, like 2 or 3 ORWO processes, AGFA and some others. More from that time are using CD-1 as color developing component. Which one are you looking for?

Be warned: CD-1 is really dangerous substance! Protect you eyes and skin!
CD-1 is also known as T22, CD-1, TSS, dietylparafenylendiaminsulfát, Gevadiamin S, CPV-1, 4-Benzenediamin-N,N'-Diethyl Sulfate. CAS is 6283-63-2.

 

[Rudeofus]

Since "Soviet union era Color Negative Film" is decades old by now, I would expect color shifts even with the correct color developer. Wouldn't it be easier to fine tune C-41 CD (pH up/down, extra Bromide and/or Iodide, changes in dilution, ...) for better colors?

 

[dE fENDER]

After long search, I have acquired the CD-1 chemical. Does anyone have even slightest idea, does CD-1 & CD-4 developer like each other, if I add CD-1 into readymixed C41 kit (tetanal Colortec) ?

There is not too much sense in this adding. The difference between CD-1 and CD-4 is that CD-1 will shift color balance to blue (for C-41 films), and the CD-4 - to yellow (for soviet film). With C-41 + CD-1 you''lt get something between, but you can use C-41 to get something not very different.

My example - the color Tasma TsNd-32 (color negative), expired 1985, exposed and developed at 2016. It has a very good storage (in a freezer perhaps) and a very good density , most of this only gave a very-very slight visible image with a lot of fog.



Another my sample, old photo, taken at about 1995 on another color negative film - Svema DS-4 (at the time it became Ukrainian) when it was fresh: