Arista.EDU Ultra 100 - strangest deformations on roll

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I've been trying to test both the foma 100 and foma 400 in 120 format for a few days.. The first roll of 100 film came out... interesting.
I've never seen anything like this and perhaps, maybe someone out there has came across this or can verify my one suspicion.

I loaded two rolls into my stainless steel tank. The tank was a bit moist on the inside with water from the last time I had developed film. Normally this isn't a problem as the film isn't sitting in there for any length of time.

Well, I just couldn't develop it right away so it sat there in the tank.
I believe the moisture 'condensated'? on the surface of the film, caused some sort of surface tension? which the developer (D76 1:1) sort of swirled around?

I thought at first that perhaps it was reticulation but my temperatures weren't off by much at all. Perhaps there _was_ fixer residue inside the tank, but why would I get dark marks on the negatives as opposed to lighter/clear?

I'm just stumped. I'm going to develop another roll but I was just blown away by how _messed up_ these two rolls came out.

A very humbling experience indeed!
 

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Donald Qualls

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My first thought is that the emulsion that was dampened soaked up the developer at a different rate than the dry gelatin -- based on the marks you see, seemingly more rapidly, resulting in more development in the dampened areas. If the water sat for a time, the gelatin in that area would be already swollen, but if there wasn't enough water to saturate it, you might get this instead of the more common reduction in uptake that comes with presoaking film.

Solution, in any case, would be to presoak any film that has been left to stand in an incompletely dried tank; once the emulsion is evenly swelled and saturated, you shouldn't see marks like these.
 

Michel Hardy-Vallée

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You should keep a dedicated towel to dry your tanks. SS is sooo easy to dry, I wouldn't even consider being lazy there.
 

dianna

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I've never had that exact problem with Arista Ultra, but I have had a different problem, with the tape. After I separated the film from the paper, the tape had a ragged edge - it apparently pulled some of the paper off. I removed as much of the paper as I could and folded it over the film and didn't think twice about it. But later I noticed a residue of black flecks in my Diafine B after pouring it from the tank into the bottle. I think Diafine B dissolved some paper off the edge of the tape. Also noticed black flecks on the frame that rolled on top of the film edge (did that make sense?). The tape must have unfolded during development and touched the film, leaving a trace behind. I've stopped using Arista 120 because of that particular problem. I'm still planning to use it in 4x5 sheets, though.
 
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Yeah, I know i'm lazy.. but a little dampness isn't a big deal when you're loading film and developing it immediately..

Mr. Qualls, I think that you're right. Wow did I mess this one up.

Dianna, i've had the flecks too.. Though only on one roll out of 10.
 

Donald Qualls

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Dianna, suggestion for avoiding the problem with the tape picking up black from the backing (forced on me by Forte/Classic 400, which now uses paper tape that I can't peel off either the film or the backing): tear the tape at the film edge. Or take a pair of scissors into the darkroom as you would for 35 mm, and either cut the tape, or cut the film within the tape covered area. Again, no more black stuff.
 
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