Developer and times for Agfa Isopan Super Special?

[polyglot]

I was at a photomarket this morning and saw an exposed 120 roll labelled Agfa Isopan ISS / Isopan Super Special. Swapped it for the 35 cents in my pocket and am now wondering how I should develop it... I get only one go at this I think as I don't really want to cut it up. And I don't have some way of making it light-tight again after transferring a clip to the daylight tank.

I have on hand plenty of D-76, Rodinal and maybe enough LC-29 to make up a 1+29 batch.

A spot of googling tells me it's an ISO100 film designed in the 1940s or 1950s and that one can develop it in D-76... but recommended times vary from "do the same as FP4 and maybe add 20%", to 12 minutes in stock or even 25:00/18C at unspecified dilution. One site notes that the slightest overcooking will result in unusably thick negs.

Any suggestions or links to something definitive? Anyone actually used this themselves?

 

[Ian Grant]

Back in the 60's I used a few rolls of this film, dev times were similar to FP4, which is what you've found via Google. With these older films it's best to give a little extar to boost the contrast hence the add 20% extra dev time.

I have just found times for ISS in BJP Almanac 1954 & 1961 and they are 9 minutes in ID-11/D76 for roll film, no temperatures been given but it'll be 20°C

Ian

 

[polyglot]

I guess that's 9:00 in stock? FP4 says 8:30 in 1+0 and 11:00 in 1+1, so how about I give it 13:30 in 1+1?

 

[Ian Grant]

Sounds about right, my negatives were on 35mm in Agfa Rapid cassettes, as square 35mm easy loding system, the camear wasn't too brilliant.

Ian

 

[polyglot]

Well, it developed OK. Nothing interesting on the film though - not even a recognisable object or person. Just swirls of density as if someone had waved a fluorescent light around in front of a long exposure. Also looks like it was taken on a 6x6 toy camera - uneven frame spacing, light leaks, etc.

Sadly, no images of Harold Holt disappearing into the surf or anything (we don't have a grassy knoll here in AU).