what are these streaks on negs?

[lynnb]

There was a roll of HP5 in a Flexaret I bought the other day from a charity store. Once developed, the neg strip had these tramlines for its length (including between frames):

Any ideas? The main roller is clean and turns freely, the smaller roller at the take-up spool turns freely but has some corrosion. As it turns freely, I can't see that it would be responsible.

Maybe being a found film, there is something I'm not aware of?

Another roll of 35mm developed in the same tank was quite OK. I did not have any trouble loading the neg into the Paterson spiral.

 

[Keith]

Maybe the light trap of the canister ... not too many other choices really!

 

[sevo]

Roller patterns will repeat with the circumference of the roller as their frequency - these are static and permanent, so it will not be a roller, unless one of them comes stuck when you close the back. Check the edges of the image window and film compartment for sand, grit and corrosion.

If the film (and exposure) are ancient, it might even be a fabrication irregularity that got amplified over the course of time. Or a past owner played around with the film (120 cannot be rewound, being taped up at the wrong edge, and people often end up applying force when they try).

 

[Keith]

120 film ... no light trap ... forget my theory then! LOL 😀

 

[--s]

Hi Lynn!
That looks like something scratchy in the cam.

cheers,
smp

 

[mcfingon]

Agree with scratches Lynn, I've seen similar from a film squeegee I used to dry the film.

 

[lynnb]

thanks! The film was only half exposed by the previous owner so I finished it off (6 exp), including the picture above, on the way home from the store. The first half were black frames widely spaced with what looks like double exposures, so maybe someone was playing around with the camera in the store. On closer inspection of the negs the heavy tram lines only started from the frames I took, and I couldn't find anything scratchy in the film path so I'll try a fresh roll and see what happens.

The Flexaret is much lighter and also more compact than my Yashicas, which makes it quite appealing to me. The lens seems to be in good shape and the shutter seems accurate above 1/10.