AGFA COLOUR CN S Development?

[burkie]

Hi All,

Yet ANOTHER old fim find,3rd in 6 months!!!

This time it's colour Agfa colour CN S.

I understand from my research that it is processed using the C 22 method,The C41 process is apparently at much higher temperature and not suitable.

Anyone in Ireland still using this process,or any advice appreciated.

Eugene

 

[Photo Engineer]

The CN series had several processes IIRC. I remember the film types went roughly with the process #, and so there was a CN-17 and etc. Does your film have a type number? If not, then it might be C-22 compatible.

PE

 

[burkie]

Hi Photo Engineer,

It says "Agfacolor SPECIAL CNS negativfilm",it's written in German plus English ie HIER FALTEN then FOLD HERE

Thanks

Eugene

 

[AgX]

Ron,

`Agfacolor CNS´ (without number) was the designation of the film which in 1968 replaced the Agfacolor 17M (double-masked). It took the same Agfacolor-process.
Agfacolor films never used C-22, but skipped it and used C-41 since 1978.

 

[Photo Engineer]

Yes, I had forgotten that "skip". Thanks for the correction. Then this is the one after the CN-17 process, right? IDK that process at all, but I have the CN-17 process formulas here somewhere. I even had an old Kit.

BTW, my CN17 does not appear masked either. I had a lot of that from years ago.

PE

 

[railwayman3]

Ron,

Agfacolor films never used C-22, but skipped it and used C-41 since 1978.

That's brought back a memory from student days in the 70's when my local photo shop sent a dozen or so of my Agfa CN17 films to the local (cheapy?) wholesale processing lab, who put them through C-22! Despite my pointing this out and requesting that they be sent to the official lab which Agfa had in the UK in those days!

That was the end of my business with that shop for ever, and I swapped totally to Kodak products for color after that (though it wasn't Agfa's fault).
The pics were from a special student vacation which I'd saved up for over a couple of years, but fortunately my friends also taken pics and put together a set of their prints.

(The shop did give me a dozen free films, but only after threats of a lawyer!)

 

[AgX]

burkie,

Back then Tetenal offered their "Tetenal Neofin Color", for films like CN-17. As one-shot processing that should do well with CNS.
Neofin Color was offered in ampules and those seem still to show up sometimes.
But with that old film don't expect too much.

 

[Ian Grant]

There's a UK lab who still process C22 or Agfacolor films.

Ian

 

[railwayman3]

burkie,

Back then Tetenal offered their "Tetenal Neofin Color", for films like CN-17. As one-shot processing that should do well with CNS.
Neofin Color was offered in ampules and those seem still to show up sometimes.
But with that old film don't expect too much.

Ah, I'd forgotten the Tetenal chemicals in sealed glass ampules, which you broke off the stem to open. Neofin Blue and Neofin Red. They had a reputation for lasting "for ever"! (Makes me feel old. )

 

[AgX]

But with that old film don't expect too much.

Though those samples from that lab seem rather good.

 

[Ian Grant]

It seems they are over subscribed with Scala but they now state they may be offering Fomapan R100 processing and other sizes.

Ian

 

[railwayman3]

It seems they are over subscribed with Scala but they now state they may be offering Fomapan R100 processing and other sizes.

Ian

That would be a useful service.

 

[burkie]

Gosh,Thanks for all the replies guys,

I will contact the lab in England,I have a local lead here too as I mentioned it to an old Pro.
The info on the C17 is invaluable.

Thanks again,

I'll post the results.

Eugene

 

[Ian Grant]

Alternative processing formulae were published in the BJP Almanac/Annual so anyone with the raw chemistry can dve the film.

Ian

 

[AgX]

As there seems to be some mor interest in the CN-17...



There were several CN-17's:


CN-17 (maskless, later CN-17 Universal until 1975)

CN-17 M (single-masked, Photokina 1965)

CN-17 M (double-masked, combining Agfa and Gevaert technology, first introduced in the USA, 1965)

CN-17 Special (same film, 1966)

CNS (20 DIN, first Agfacolor with twin halide layers, magenty & cyan, 1968)

CNS (new yellow coupler 1969)


CNS took the same process as the old CN-17 Universal, but with a slightly longer fixing time.
CN-17 Special took also the same process, but as the masking took place in the bleach bath, this had to be regenerated.

 

[foc]

My understanding is that Agfa CNS 2 was just an updated version of CNS, introduced around the time of the Agfa 110 pocket cameras around mid 1970s.

These films can be developed in C41 BUT at 20C and NOT 38C (the emulsion will melt)
You could have a look here if you are thinking of doing it yourself.

The video title is incorrectly titled (IMO) because it suggests that Agfa CNS is the same as Kodak C22, which was not the case although since both processes are obsolete, CNS and C22 films can be developed in C41 in a similar fashion as suggested in the video.