What is the difference between AN-6 color chemistry and C41?

[Vovanuhc]

Hello everyone. Is there anyone here who knows the recipe for the AN-6 process?

 

[lamerko]

It seems to be compatible with C-41 - at least the documentation says that aerial films can be processed with both processes. My guess is that the differences are related to specific equipment, not so much to chemistry.

 

[koraks]

It seems to be compatible with C-41

Yes, this seems to be the case. AN-6 = Agfa ASP-70 = C41

Hello everyone. Is there anyone here who knows the recipe for the AN-6 process?

What kind of film are you trying to process?

 

[Vovanuhc]

It seems to be compatible with C-41 - at least the documentation says that aerial films can be processed with both processes. My guess is that the differences are related to specific equipment, not so much to chemistry.

Yes, I know it's compatible, but I would like to know how different it is.

 

[Vovanuhc]

Yes, this seems to be the case. AN-6 = Agfa ASP-70 = C41



What kind of film are you trying to process?

Kodak Aerocolor

 

[koraks]

Yes, I know it's compatible, but I would like to know how different it is.

You'd have to dig up an SDS for e.g. Kodak AN-6 developer replenisher and starter.
Off the bat, it seems that AN-6 is overall a lower-activity developer than C41 and the film is designed to give the desired gamma despite this.

Kodak Aerocolor

Which one? If it's present Aerocolor IV, just process it in C41. Works fine.

 

[Vovanuhc]

You'd have to dig up an SDS for e.g. Kodak AN-6 developer replenisher and starter.
Off the bat, it seems that AN-6 is overall a lower-activity developer than C41 and the film is designed to give the desired gamma despite this.



Which one? If it's present Aerocolor IV, just process it in C41. Works fine.

In Kharkiv, they sell Kodak Aerocolor film from the former Svema plant. It develops well with the C-41 process, but the instructions say that the native process is AN-6, which can be replaced with C-41. I'm just curious about what the difference would be, as films processed with ECN-2 developed in the C-41 process tend to have slightly different color reproduction.

 

[koraks]

Okay, I see. AFAIK An-6 is based on CD4 just like C41, so you wouldn't have the kind of significant differences you see when cross-processing ECN2 film in C41 and vice versa.

 

[halfaman]

In Kharkiv, they sell Kodak Aerocolor film from the former Svema plant. It develops well with the C-41 process, but the instructions say that the native process is AN-6, which can be replaced with C-41. I'm just curious about what the difference would be, as films processed with ECN-2 developed in the C-41 process tend to have slightly different color reproduction.

Aerocolor aims to a much higher contrast for aerial photograhpy than what we are used to in still photography (contrast around 0.60), so the developer is more energetic than C41 one. Take a look to the table below taken from the film datasheet.

 

[Vovanuhc]

Aerocolor aims to a much higher contrast for aerial photograhpy than what we are used to in still photography (contrast around 0.60), so the developer is more energetic than C41 one. Take a look to the table below taken from the film datasheet.


View attachment 392338

Yes, I've seen the table, but I'm interested in the recipe.

 

[lamerko]

Aerocolor aims to a much higher contrast for aerial photograhpy than what we are used to in still photography (contrast around 0.60), so the developer is more energetic than C41 one. Take a look to the table below taken from the film datasheet.


View attachment 392338

Or is it almost identical, but designed for higher temperatures...

 

[koraks]

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