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Defect on BPF200

Guillaume Zuili

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I have been processing 10 sheets of 8x10 in Jobo 3005 yesterday.
On two sheets, the two I like (why is it always like that !!!), I have a woof (not sure of the word, it's trame in french) all over. Very fine dots all over.
I'm pissed.
Any clue of that ? Will post a scan of a print as soon as it's dried.

G.
 

PhotoJim

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"trame" = web - like a mesh pattern I assume?
 

Rlibersky

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Distilled water used? Really need more information. As you procaly know white spots are usually some foreign material introduced in developing. At least they are white so you can spot them. Much tougher if they are pinhole.
 
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Guillaume Zuili

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No distilled water this time but i don't think it's the cause, too regular. 2 minutes rinse, Agfa 8, water bath, fix, usual stuff always works fine...
Rlibersky, it's not the white spots that are bothering me. it's that all mess of lines that are horizontal.
Aurelien, I will send an email.
Thanks,
Guillaume
 

Ronald Moravec

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If you see black specks on the neg that print white like this in random areas, it is precipitated silver from used fix. Sometimes filtering is sufficient for 4x5, never for 35mm.

If used fix stands more than 24 hours, I can see the black flecks forming on the bottom of the glass bottle. They stick like glue to the next film, but can be rubbed off before drying. After drying, no way. Force streams of water will do no good.

My problems went away when I stopped reusing film fix. I now use it up on test prints. I only use fresh fix on film I care about. Use glass bottles and clean them between use. Save and use for fix only.
 

Bob F.

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This banding looks like a coating defect PE mentioned before - regular sinusoidal lines across the width of the film as it is coated. I can't remember if it was the head vibrating or the paper that was feeding incorrectly... No doubt as the US wakes up PE will let us know if it does look like it.

Cheers, Bob.
 

Rlibersky

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Rlibersky said:
My Bad, from your origanal post I only saw the white speck comment. Didn't know woof or trame meant anything different then DOH. Figured the lines were from you scanner. Can't help you with those.

Randy
Click to expand...
 

Aurelien

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What is the date on the box? Or the date of production? Cause I think that the last Forte production was not as good as usual. They may have worked as pigs... Cause I had problems too, but with papers...
 
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Guillaume Zuili

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Aurelien -)...
I have been using a stock of expired film from 2004.
15 boxes brought from France when I moved here.
This problem happens on my last box ! -)
G.
 

Photo Engineer

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This banding is too close together to be the defect I mentioned before.

It reminds me of the marks we used to get on prints processed in Saran baskets many years ago.

Without good agitation, the film took on this aspect.

I have also seen this from cardboard or cheap paper making imprints on film. Cardboard and cheap paper use a wire in the compression of the fibres as they rise from the pulp slurry and they have a face and 'wire' side. The wire side has an inprint like that on paper that is not pressed enough.

That looks like a packaging defect or a process defect of some sort. The method of introduction escapes me, but I have seen it before.

PE
 
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