Developing Agfapan 100 Professional (found film)

[relistan]

This leaflet states 5 minutes for Rodinal 1+25, not 8 minutes like I wrote before. 8 minutes seems to be the time for APX100.

Very good find! Looks like I was wrong about them being the same also. This is good to know. Thanks for posting.

 

[Buzz-01]

@Buzz-01 Nice find. I'd be tempted to give it 6' in Rodinal 1+25. Given its age, it might need some extra development. I'd also be tempted to try a clip test and see how dense the leader gets after normal processing. I've seen long expired film struggling to pick density, but it's not always the case.

Exactly my thought.
Have read about clip testing as well, but some say this might not be reliable if the leader has been exposed to light for a long time. (and in this case it definitely has!)
So I'm not confident that a clip test would tell me what I want to know.
I'll probably go with 6 minutes in Rodinal 1+25.
Now only need to find a moment to develop the film and see if there's anything on it...

Very good find! Looks like I was wrong about them being the same also. This is good to know. Thanks for posting.

Hope it's helpful for someone else in the future!
There's a lot of confusion between these two film types; that's why I was looking for the original instructions.

Edit: Here's the instructions for the classic APX film I also found:

 

[Agulliver]

With unknown photographic material I tend to begin from a standpoint like this.....if I can't get something out of it in ID-11 or D76, standard agitation method for 8 minutes at around 20C.....then I'm not going to get anything out of it at all. So in the absence of any further info that's what I do with B&W "found film" or unknown films. I always get something, if exposures were made. Put me in the camp that doesn't understand the appeal of stand processing...and yes, I have tried it.

 

[Buzz-01]

With unknown photographic material I tend to begin from a standpoint like this.....if I can't get something out of it in ID-11 or D76, standard agitation method for 8 minutes at around 20C.....then I'm not going to get anything out of it at all. So in the absence of any further info that's what I do with B&W "found film" or unknown films. I always get something, if exposures were made. Put me in the camp that doesn't understand the appeal of stand processing...and yes, I have tried it.

Stand development was my first thought, because I had no idea of what the intended development time for Rodinal (or whatever other developer) would be. But then I found the original instructions, and stand development was off the table.
I'm not that experienced with D-76 yet (only developed one roll in it yet), so have no good feeling of how "winging it" with D-76 would turn out.


Yesterday evening I developed the film, 6 minutes in Rodinal 1+25 at 20°C.
Did a pre-soak for 2 minutes with water (20°C), that came out clear.
But the Rodinal came out pitch black!

Anyway, development was successful. Both highlights and shadows are present, but the film is quite contrasty.
Possibly this has partially to do with its age, but half of the images were also quite underexposed.
As expected, there were only about 10 frames on the roll, the rest was blank.
Judging from the photos, the film was probably shot in the late '80s.
I won't post them here because they're not mine, but it was a nice trip back into history!
Thanks all for your advice!