Weird Stains C41 Emulsion side

Juan Cruz Le · 2025-09-30T14:35:24-0400

Hi! Any clues what this stains could be from? Its in the emulsion side of the film. They came out in the last 5 rolls i developed together. It happened to fresh and expired rolls.

koraks · 2025-09-30T15:21:14-0400

Hard to say, maybe some more information helps. What kind of film, what kind of chemistry, some photos of the affected areas photographed with light shining onto the film (the reflections sometimes give some insight into the nature of the defect).

Juan Cruz Le · 2025-09-30T16:06:11-0400

koraks said:
Hard to say, maybe some more information helps. What kind of film, what kind of chemistry, some photos of the affected areas photographed with light shining onto the film (the reflections sometimes give some insight into the nature of the defect).

The examples I posted are fresh and expired film. Happened with both, Chemistry is Fuji, can't take a photo right now but will do.

koraks · 2025-09-30T16:13:51-0400

120 film, 35mm?

Juan Cruz Le · 2025-09-30T16:20:52-0400

koraks said:
120 film, 35mm?

35mm. 5-reel tank. Mixed the 5L of developer at once. Used the first 1.4L without problems. Now changed to a new developer solution, which was mixed with the first 1.4L that didn't have a problem. Stored in Bag in a Box, without air, been doing that without problems, also, less than a month old. First 5 rolls into this new dev, this appeared. Should I blame the developer? All mixed with distilled water.

koraks · 2025-09-30T16:22:05-0400

I couldn't say at this point. The nature of the defects is still not clear to me.

Juan Cruz Le · 2025-10-01T14:21:15-0400

koraks said:
I couldn't say at this point. The nature of the defects is still not clear to me.

I don't know what it was. I switched bleach just because it was time to dump it, filtered the fixer and the developer and tried developing again. All good.. So can't really say what happened.

koraks · 2025-10-01T15:02:33-0400

Right, that's interesting; well, fingers crossed that the problem stays away!

Juan Cruz Le · 2025-10-01T15:21:10-0400

koraks said:
Right, that's interesting; well, fingers crossed that the problem stays away!

Praying

Weird Stains C41 Emulsion side

Juan Cruz Le

koraks

Moderator

Juan Cruz Le

koraks

Moderator

Juan Cruz Le

koraks

Moderator

Juan Cruz Le

koraks

Moderator

Juan Cruz Le

Weird Stains C41 Emulsion side

Moderator

Moderator

Moderator

Moderator

Privacy & Transparency

Privacy & Transparency