Agfachrome 100 Development Process?

[plummerl]

I've tried all the usual search tools but have failed. I discovered an exposed roll of Agfachrome 100 slide film, and was trying to find out if it could be processed with E-6. Other than "Agfachrome 100", the canister is devoid of any other branding. It does say, PRICE INCLUDES PROCESSING, SLIDES RETURNED HIGH IN QUALITY PLASTIC MOUNTS. I was a heavy consumer of Agfachrome in the 80's, but never paid attention to the processing method. I haven't the slightest knowledge of when this was exposed. Here's the canister, even image search failed to pull back this one:

 

[Paul Howell]

As it marked ASA and from the early 70s (?) I I think it was the older forerunner also made by ANSCO and GAF was very different more like E 4 and required a reexposure during the processing under a very bright light. ASA changed to ISO about the same time 1974 or so as E 6 was introduced.

 

[MattKing]

.It looks like the very nice film that required a specific, Agfa only process.
Not E6, and not E4, although probably closer to the latter.
The bad news is that you won't be able to use it as intended and get it processed.
The good news is that the cassettes are great - I use them as reloadable cassettes for my bulk load film.

 

[foc]

If my memory serves me right, the 100 means the ASA.

Agfachrome changed to E6 in the early 1980s. Their proprietary process films used the DIN number system Agfachrome CT 18 and CT 21.

When they changed processes, both colour negative and transparency films then had the ASA number in the name.

My guess is the film is Agfa's early E6 transparency film. To my knowledge Agfa never tried E4, it was a straight change from Agfachrome CT21 (Agfa's own process) to Agfachrome 100 (E6 process).

 

[koraks]

I was a heavy consumer of Agfachrome in the 80's

Agfa moved to E6 (well, an E6-equivalent, really; "AP44") process in the early 1980s. Odds are your film is from that era, and not the preceding AP41 era.

Early Agfa Colour

Agfa

www.photomemorabilia.co.uk

If my memory serves me right, the 100 means the ASA.

I have no doubt about that.

 

[Ian Grant]

Just checked, the 1982 BJP Almanac says Agfachome 50S, 50L, and 100 use the same AP41 process as Agfacolor CT18 & CT21. The newer E6/AP44 films were introduced between 1982 and 84

It's a renaming to probably help with export and possible confusion where all other major colour reversal films include "chrome" in the name, and negative films "color", also switching the name to include the ASA speed.

Agfa had been selling Agfachrome 64 exclusively in the North American market from 1973.

Some Easter block film manufacturers also started renaming their films to include the ASA instead of the DIN speed.

Ian

 

[Romanko]

Sorry, I don't remember the source.