Foma Classic Lith and a surprise

[Guillaume Zuili]

I got a bizarre result with Foma paper. Pretty much exhausted lith dev, long dev (40min), the usual routine... and I got these mushrooms. Something that never happened before on Foma paper.
Anybody got that recently ?
G.

 

[brucemuir]

that's an awesome photograph...
did you print it with fresh dev?

 

[tim rudman]

I got a bizarre result with Foma paper. Pretty much exhausted lith dev, long dev (40min), the usual routine... and I got these mushrooms. Something that never happened before on Foma paper.
Anybody got that recently ?
G.

Exhausted developer, sulphite at subcritical level Guillaume.
I first got it testing a trial replacement coating for a kentmere paper which didn't materialise. I labelled it 'fluff fogging' as it didn't look like pepper fogging!
Tim

 

[tim rudman]

I just remembered Guillaume that when this happened I tried to reverse this by adding all the usual PF cures (inc added sulphite) but it didn't respond. I wondered if it was an emulsion issue but wasn't able to pin down. I have never had it with Foma though and would be interested to know if it responds to fresher dev.

I have had a bizzare blue spot rash with Fomatone lith prints in Selenium though, only occasional and apparently random. Have you had that?
Tim

 

[Dan Henderson]

I got a blue "blob" on a Foma lith print upon selenium toning. But just one out of several processed in the same session. I chalked it up to contamination due to careless handling.

 

[Rich Ullsmith]

Weird things seem to occur when the chems are really pushed to their limits. I'm to say, probably one out of five prints that goes past 15 minutes, something turns up. 40 minutes is a long time! Can I borrow some of your patience, G?

 

[tim rudman]

I got a blue "blob" on a Foma lith print upon selenium toning. But just one out of several processed in the same session. I chalked it up to contamination due to careless handling.

I'm not talking about 'a' blob here Dan. I'm talking about a 'measles' rash all over the paper, each spot say 0.5cm!
tim

 

[Mark Fisher]

I just remembered Guillaume that when this happened I tried to reverse this by adding all the usual PF cures (inc added sulphite) but it didn't respond. I wondered if it was an emulsion issue but wasn't able to pin down. I have never had it with Foma though and would be interested to know if it responds to fresher dev.

I have had a bizzare blue spot rash with Fomatone lith prints in Selenium though, only occasional and apparently random. Have you had that?
Tim

I have and I have absolutely no idea what caused it. It only happened once, and I haven't seen it since even with the same paper batch and chemicals. It was a bunch of random spots 3-7mm in dia (about). I figured it was something I did in processing that I'd never track down....so I didn't try real hard

 

[Guillaume Zuili]

Well...
I am maybe coucou by doing these long times... (see other posts with my canadian friends) but these times are my routine and I play all the time with exhausted dev and I don't have issue.
In fact I just replenish. Tray stays all night and I add some fresh for breakfast.
This is the only time that happened. No, this happens in fact on one particular box.
Tim, I have a feeling about this particular batch being the culprit .
Rich, "Waiting is 3/4 of the pleasure", so I wait and wait and wait..!