Agfa isopan ISS

[Lynda]

I purchased a camera that had a used roll of film in it, Agfa isopan ISS. Any ideas on how to process this film? Will the type of chemistry make a difference? We have sprint at school, but I could get something else.
Any thoughts on this will be appreciated.
Lynda
P.S. the camera was a minispeed!

 

[Ian Grant]

I used this film in my youth, it was just a standard German 21 Din (now ISO100/21) Black and White film, the equivalent of Ilford FP3.

Process it as a normal 100 ISO film like AGFA AP100 or FP4 in a standard fine grain developer like ID11(D76), Xtol etc.

Ian

 

[Lynda]

Ian, thank-you! Does the age of the film affect the development time? I searched old posts before I asked about this and they mention -age fogged and to change the time to compensate, rather confused me.
Lynda

 

[Ian Grant]

Lynda, yes it would probably be advisable to give an extra 15%-20% development. This will boost the contrast a little making the film easier to print if there is a slight base fog from ageing.

Ian

 

[Charlie-J]

Agfa Isopan I.S.S

Going on the information in my 1949 copy of 35mm By H.S. Newcombe (focal Press)
The book lists Agfa Isopan I.S.S. as a group C film (very fast films 30 to 32 Sch.)

The development time given for films of this group are
Kodak D76 25mins @ 18 degC
Kodak D23 25mins @ 18 degC
Dupont N.D.2 13 mins @ 18 degC

The book also lists many other developers and the formulae to make them up.

I would recommend doing a clip test before developing the whole roll.

If you get anything interesting from the roll share them here.

I developed a 35mm roll or Kodak Super XX pan that was exposed in 1947 ( the details had been recorded on the leader) unfortunately the whole roll turned out completely black, I was expecting this as super XX pan was a fast film and it was exposed 60 years ago.

Hope this helps

Charlie