Anyone know what's worng with my film?

Nicholas Lindan · Sep 12, 2024

Alessandro Serrao said:
It they were light leaks they wouldn't be that uniform.
Here's another similar case https://www.photo.net/forums/topic/184842-what-happened-to-this-film/
Look for jay_de_fehr answer.

Ah, I like it. The hypothesis is it is stress marks caused by rewinding the film backwards into to the cassette - causing it to go around a sharp corner. The thing to do now is to make an experiment that shows this effect. As I said above, the proof is experimental evidence that makes this happen on demand.

I'd volunteer but I used my last spool of 'trash' film (AKA really, really outdated antediluvian Arista (probably Ilford something or other (could be Dupont, explains the 'Buy War Bonds' admonition printed on the box)) that I used up by buying too many trash cameras (did I say C3, Solina, trashed Nikon...?) and feeling I need to shoot a test roll in each (P.S. the old Arista holds up remarkably well)).

cerber0s · Sep 12, 2024

It almost looks like there is physical damage to the film. @CrazyCockatoo did you sit around with the lens cap off in bright sunlight? Check you shutter for holes. The Canon AE-1 has a cloth shutter, right?

DeletedAcct1 · Sep 12, 2024

cerber0s said:
It almost looks like there is physical damage to the film. @CrazyCockatoo did you sit around with the lens cap off in bright sunlight? Check you shutter for holes. The Canon AE-1 has a cloth shutter, right?

They are stress marks. No doubt about it.

Alex Benjamin · Sep 12, 2024

BrianShaw said:
Apparently this has been deemed a red herring, but I had the same (red) thought.

We know that by definition red herrings cannot fog photographic paper, so there's that.

Just sayin'.

CrazyCockatoo · Sep 12, 2024

Don_ih said:
A hinge leak in the camera tends not to look like that. A momentary opening of the camera back before rewinding the film could do it, though - but one or two shots would be completely black.

How did you agitate the film during the developing stage?

Also, is there any chance there was fixer on the reels or tank when you started?

just roll the tank via it's axis. There's no chance cause the tank and reels are been cleaned.

CrazyCockatoo · Sep 12, 2024

Alessandro Serrao said:
Why not?
Some questions for the OP:
1) what kind of Paterson tank do you have? 1 reel? 2 reels?
2) How much developer did you used in ml?
3) Did you inverted the tank or only agitate by twisting motion?

2 reel tank but i only use one. 300ml of dev i invert the tank.

CrazyCockatoo · Sep 12, 2024

Alessandro Serrao said:
did you experienced troubles loading the film onto the reel or rewinding it in the camera?
I vote for the stress marks issue (notice the emulsion missing in the first image, between "ilford" and "hp5"), that's no light leaks.
It they were light leaks they wouldn't be that uniform.
Here's another similar case https://www.photo.net/forums/topic/184842-what-happened-to-this-film/
Look for jay_de_fehr answer.

yeah i think there's no image at frame 33-37 is because i feel resistnce and hard to advance when i reach these frames, i didn't check the frame meter on the camera and i began to rewind. It's a bit hard to rewind at first but fine after maybe 6-8 turns.

CrazyCockatoo · Sep 12, 2024

Nicholas Lindan said:
However, the patches are showing up at frame #27. If the back of the camera had been opened up then this exposure pattern would happen on the film wrapped around the take-up spool. There would also be a big black patch on the film around frame #30.

No camera back haven't been opened

mshchem · Sep 12, 2024

I've got to go with some sort of exposure to light to cause such intense density. Either in the tank or in the camera. I would start with the tank.

DeletedAcct1 · Sep 13, 2024

CrazyCockatoo said:
yeah i think there's no image at frame 33-37 is because i feel resistnce and hard to advance when i reach these frames, i didn't check the frame meter on the camera and i began to rewind. It's a bit hard to rewind at first but fine after maybe 6-8 turns.

That's the problem: those are stress marks and the rewind inside the camera and the loading onto the reel were the culprits.

Don_ih · Sep 13, 2024

The lines may be stress marks, but these

are from light.

So, you may have two separate issues.

CrazyCockatoo · Sep 13, 2024

Alessandro Serrao said:
That's the problem: those are stress marks and the rewind inside the camera and the loading onto the reel were the culprits.

so why does the film got stuck and being stressed? It never happen before

Don_ih · Sep 13, 2024

The film advance might have got jammed by a bit of debris in the camera - like a small piece of film.

Is there any possibility you rewound the film by turning the crank in the wrong direction?

DeletedAcct1 · Sep 13, 2024

Don_ih said:
The lines may be stress marks, but these
View attachment 378503
are from light.

So, you may have two separate issues.

too defined to be a light leak imho

Don_ih · Sep 13, 2024

Alessandro Serrao said:
too defined to be a light leak imho

It's light directly shining onto that spot of film through two or more sprocket holes with the film wound up tightly.

Don_ih · Sep 13, 2024

Also, by frame 28, those sprocket hole shadows are gone. So frame 28 was in the film cassette when the lower-frame-numbers were exposed to light.

DeletedAcct1 · Sep 13, 2024

Don_ih said:
It's light directly shining onto that spot of film through two or more sprocket holes with the film wound up tightly.

no, I stand by what I've said, that particular it's not a light leak, it's stress mark. Too defined to be a light leak.
However it's almost impossible to know what it is. The OP should take another Hp5 roll and use another camera and develop it in the same tank. Changing one variable only.

Don_ih · Sep 13, 2024

Alessandro Serrao said:
no, I stand by what I've said, it's not a light leak, it's stress mark. Too defined to be a light leak.

Congratulations

DeletedAcct1 · Sep 13, 2024

Don_ih said:
Congratulations

Congratulations what?

FotoD · Sep 13, 2024

It could be a light leak in camera. Are the hinge seals in bad shape?

Don_ih · Sep 13, 2024

Alessandro Serrao said:
I don't care if you agree with me or not.

You clearly do. You have stated and restated your opinion ("It's stress mark, baby!") I don't know how many times. Keep in mind, though, the film is not in your hand or my hand - neither one of us knows what it is.

I stated what I thought this was, that's all. No polemic.

DeletedAcct1 · Sep 13, 2024

Don_ih said:
You clearly do. You have stated and restated your opinion ("It's stress mark, baby!") I don't know how many times. Keep in mind, though, the film is not in your hand or my hand - neither one of us knows what it is.

I stated what I thought this View attachment 378506 was, that's all. No polemic.

No, I don't care, really.

Don_ih · Sep 13, 2024

Alessandro Serrao said:
I don't care, really.

Excellent.

CrazyCockatoo · Sep 13, 2024

FotoD said:
It could be a light leak in camera. Are the hinge seals in bad shape?

no eveything's fine

CrazyCockatoo · Sep 13, 2024

i will take some photo with the same camera and dev it by another tank to see if it's the camera's fault

Anyone know what's worng with my film?

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