Can't figure this film issue out

[bambiwallace]

a friend asked me to look at his developed film. the streaks run the length of the film which is delta 100. the same person had the same issue with hp-5. the streaks are not on the surface of either side of the film. i have never seen anything like this and don't know what to tell him. he uses a leica IIIf.

the uploaded photo was taken on a crummy light table hence the dark side of the snowboarder negative. any information or advice is greatly appreciated

 

[markjwyatt]

porous horizontal cloth shutter?

 

[peoplemerge]

My guess is squeegeeing the film before it is hung to dry. It could be a camera problem, but I doubt it, because camera scratching emulsion usually presents as deeper scrapes or nothing at all. It looks like the damage is done when the emulsion is wet.

 

[JensH]

Hi,

really strange.
Maybe grease/oil or so gets in contact with the film inside the IIIf?
Just guessing...

 

[OAPOli]

maybe this? Specs protruding from the curtain.

Shutter Curtain Problems in the Screw-Mount Cameras

DAG Camera Parts

www.dagcamera.com

 

[Sirius Glass]

I agree that it looks like a squeegee was used leaving lengthwise streaks.

 

[mshchem]

I agree that it looks like a squeegee was used leaving lengthwise streaks.

Bad Squeegee or paper towel. Emulsion could be soft for some reason, maybe really warm wash??? Either that or the camera needs work, a real possibility.

 

[markjwyatt]

maybe this? Specs protruding from the curtain.

Shutter Curtain Problems in the Screw-Mount Cameras

DAG Camera Parts

www.dagcamera.com

this. Dark streaks on print=light streaks on negative.

 

[Kino]

Yes. I agree with postings #5 and #8. Looks like shots in the snow, so the shutter speed was probably maxed-out or very high...

 

[snusmumriken]

I love this forum for the unsuspected but valuable stuff I learn.

 

[Andrew O'Neill]

maybe this? Specs protruding from the curtain.

Shutter Curtain Problems in the Screw-Mount Cameras

DAG Camera Parts

www.dagcamera.com

Certainly does look like the culprit.

 

[Neal]

It is a light leak. I doubt it is the shutter as the leak doesn't extend into the image area. When I have similar issues, I take a cheap roll of film, load it and advance without exposing for several frames. Once done, I take a single shot so that I know where the film is in the camera and then leave the camera in the sun for an hour or so (make sure light gets to all of the camera). Once developed, I can line up the exposed frame and see where the issue is.

Good luck!

 

[koraks]

It is a light leak. I doubt it is the shutter as the leak doesn't extend into the image area.

The defect is in fact isolated to the image area. I think you're mistaking the harmless black band along the top edge of the film strip for the problem discussed here.

 

[Neal]

You are correct. I am an idiot. Ignore me!

 

[Don_ih]

There's definitely a shutter problem, as the density is highly uneven from side to side. Probably shutter tapering. There could also be a number of tiny holes in the edge of the second curtain, which could make lines of greater density as it travels across.

 

[Mr Flibble]

There's definitely a shutter problem, as the density is highly uneven from side to side. Probably shutter tapering. There could also be a number of tiny holes in the edge of the second curtain, which could make lines of greater density as it travels across.

Definitely tapering or drag of one of the curtains for the uneven exposure across the width.
the stripes are also a result of this problem, and they become noticeable on high shutter speeds where the gap between the curtains is small.

 

[Donald Qualls]

lines of greater density as it travels across.

These lines are of lesser density, though. Light lines on the negative can't come from light striking.

 

[Don_ih]

These lines are of lesser density, though. Light lines on the negative can't come from light striking.

Where there are light lines, there are dark lines between. It depends on what you consider to be the "lines".

 

[Sirius Glass]

You are correct. I am an idiot. Ignore me!

One time event or all the time?

 

[Neal]

All the time!

 

[Sirius Glass]

All the time!

 

[Wallendo]

I had very similar streaking with a IIIc a bought a while back. I tested it with FP4+ and everything was fine. I shot TX400 on a trip and most shots looked like this.

It turns out that the streaking only occurred a fast shutter speeds. Shutter curtain replacement fixed the issue.

 

[Xylo]

Really, the proper test would be to put a short length of film in the camera, with the shutter un-wound, blast the inside of the camera with a flashlight. Put the cap on, advance the film and do the same with the shutter wound. This should tell you if it's the first or the second curtain that's the problem.

I'm thinking porous curtains, especially when we consider the amount of light that snow reflects. It's a lot and if you test with less light than that you might simply not notice it.

 

[foc]

The poor squeegee always gets blamed, even........................................

 

[bambiwallace]

thanks for all of your replies which i will send on to my friend.. for sure, wasn't the squeegee. so grateful to have this film photo community!