what?

sanmich

sanmich

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Hi

I got these frames ruined by something I don't understand.
any idea what it could be?
HP5.
process: Emofin (rotation)/ Tetenal fixer (a bit old, but looks functional)
the film did pass some xray machine on the way (but not the suitcase thing)

Thanks!
 

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If you suspect the fixer is an issue you can try and refix with fresh mix.

Else is possibly surge from over agitation Or by using a single reel in a two reel tank. bromide drag is more of a gradation from top to bottom as the bromide settles.

I have never found a solution for recovery but you could try this if inclined.
Presoak, Bleach the image until clear, redevelop in Pyro-HD or other staining developer.
You can do this in dim light in a tray, and inspect the developer at 50% and 75% of the time to see if it is affecting the issue. Use water to stop development not stop bath. You may even make it worse since the second development will tend to increase contrast. wash well.
 
If it was the fixer it would be milkey and with stains. The trick with bleaching and re-developing in a staining developer is also a bit tricky but it helps when it is the source of your problem.
 
Thanks guys.
I guess it's not the fix since the film was clear.
Bromide drag doesn't seem likely with processing with rotation.
 
I can only think of two things: X rays, or the backing paper - I had some issues with backing paper "imprinting" itself onto the negative in case of RPX 100. The third shot looks like it has some circular sign on the right, this certainly does not look like a development issue.
 
mfogiel said:
I can only think of two things: X rays, or the backing paper - I had some issues with backing paper "imprinting" itself onto the negative in case of RPX 100. The third shot looks like it has some circular sign on the right, this certainly does not look like a development issue.
Click to expand...
Thanks Marek. It's 35mm...
I really hope it's not xrays (other films might have been damaged)
 
X-ray damage can occur in a different end result. Normally till iso 400 films it should not give any problem however you are never 100% sure about this. Especially not in third world countries.
 
Fotohuis said:
X-ray damage can occur in a different end result. Normally till iso 400 films it should not give any problem however you are never 100% sure about this. Especially not in third world countries.
Click to expand...
Not really third world countries, but since it's a cumulative process, and the film had a few rounds "unprotected"...

My feeling is that it is on the whole film at one degree or another, but the skies and dark scanning make it very apparent here.

I've come to accept a certain level of frames messed up from totally mysterious causes..:eek:
 
I always found Emofin a difficult to use developer, and have tripped up over trivialities like fingerprints on the emulsion. Two stage developers in general are sensitive to contamination issues and irregularities on the film, as the amount of developing agent soaked up in the primary stage is used up to near depletion. Variations in the generally passive layers of the film coating or contamination with wetting agents or silicone oil (drying accelerator in dishwasher) might cause phenomena like yours...
 
Emofin is from 1929 and is containing a CD component. But Tetenal stopped making it recently. Somewhere I have an old box Tetenal Emofin with even 2x 2,5 liter version. There are certainly pro and contra reasons for using any two bath type developer.
 
Thanks

interesting ... the two stage developers being more sensitive to emulsion irregularities..
I did have some issues with particles in emofin, but they are gone now that I filter every time before use.
I didn't know it was gone. it certainly wasn't cheap lately.
 
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