Thank you R.Gould.Never seen anything like this on Foma or any other film, and Foma is the main film I use, use it for everything, 400 and 200, hope someone will be able to help
Thank you Flavio.Never seen such kind of marks, and I never had any "manufacturing defects" problem with Foma 100 or 400 film.
These are scans and it's on film, on emulsion. I'm just wondering where I got that pattern. Was it already manufacturing defects or because of wrong storage or did it happen in developing process...double exposure of picasso's sketch pad?
hard to say -- you say it was old film -- you didn't forget to dust the enlarger by any chance, did you?
toss the rest of the batch and buy new stuff. make sure your chemicals are clean.
Hi Matt. It's 35mm film and doesn't have backing paper. Could it be fungus anyway?Could it be fungus on the backing paper?
I developed also other films (another brands) and they were just fine.. Well, I guess it could be storage - when I got it, it was already outdated, I don't know year, there were no box.. Thanx for an answer.It doesn't look like any of the commoner processing or handling issues which we see occasionally, e.g. air bubbles, scratches, etc. My own guess would be bad storage and/or the age of the film (how outdated was it?).....maybe damp, condensation, or fungus.
If you can, I'd try a fresh-dated roll of the same film using the same (fresh batch) processing chemicals and method.....I'll bet it will be just fine.
I will ask Foma, thnx!Send a sample to Foma and ask them for comment.
Something as weird as this isn't (easily) going to get diagnosed by posting scans on APUG.
[sits back, waits for PE or someone to diagnose exactly what problem is ...]
Hi Kino. Thank you for an answer. It was in refrigerator, it could be some moisture, since it's just ordinary fridge. Can fungus infect also other films?Looks like it got humid during storage and maybe a fungus started growing on the emulsion where it touched the base or it ferrotyped the emulsion a bit, changing the permeability of the gelatin.
Thnx Alessandro, I will ask Foma too.Manufacturing problem...
Why do you say that? According to OP it's an outdated film with unknown storage conditions. To me it looks like hoar frost imprints.Manufacturing problem...
If it was manufacturing problem I woud certainly have seen it, I never use anything else for last 15 years, if it was kept in a fridge then was it bought to room temp before use? also, if it was in the fridge for a while before use then it could be damp or fungul infection of some kind, how outdated was it? could be bad storage for a while before you even got it, could be so many things that we could guess all day and never get the answers, To get a fair answer form Foma, or any other manufactur then they need to see the film, not just a few negatives but the complete film, also, was this on every negative or just some, there are so many variables that diagnoseing on a forum is almost impossible,Manufacturing problem...
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