My M3 make film scratch problem?

[monster]

Hi

I having some question for today 🙂

Last month i bought M3 from my friend's collection, i just developed the film days ago and found a scary scratch on the film surface all along flim's rolls

I post an example of pictures here

 

[monster]

i've tried to search a problem in the camera body but don't found anything,

my friends told me problem maybe on film spongs but the another rolls from another camera didn't found this problem.

maybe a camera's shutter curtain has some light leaks? why, and how to know shutter curtain has some light leaks

Thanks for yours help.

 

[WoolenMammoth]

that doesnt look like a light leak to me, looks like a scratch and a good one too, you might run your fingernail across your negative to confirm that. I'd bet you'll be able to feel that one.

 

[colyn]

If the scratch is on the back of the film check the pressure plate by lightly rubbing your finger over it. If it is on the emulsion side check the body the same way. If there are no rough spots then it could be grit on the film cassette's felt light trap, damaged film from the maker, or processing damage.

Try another roll to see if it happens again..

 

[colyn]

maybe a camera's shutter curtain has some light leaks? why, and how to know shutter curtain has some light leaks

This is not a light leak..

 

[Keith]

I suspect the light trap in the canister ... that line isn't arrow straight ... it waffles a bit. If it was the pressure plate or a guide on the emulsion side the line would be a lot more consistent. The film can oscilate a lot more as it exits or enters the canister than it can across a guide or film pressure plate when it's being controlled by the camera's advance or rewind mechanism.

Just my theory ... but I could be wrong of course! 😛

 

[payasam]

Not a light leak: and the scratch is almost certainly on the emulsion side.