Lines on negatives from Hasselblad 500CM

[gorbas]

For black line inspect very carefully insert and shell of your back. Use good flashlight and magnifier. Check all rollers that got in contact with emulsion side of the film. Position negative close to back opening and try to locate the point of contact that way. Don't forget to flip upside down negative!

 

[Dan Daniel]

Something is off in the unevenness of the sky in the image that Kino modified. There is a bit too much of a definite line to the light/dark transitions. It almost looks as if there was a film spool sitting in chamber with light coming through- a shadow in the middle, two light-struck areas, then pretty hard lines on the outer edges (with a secondary reflection to the left?).

That isn't the look of agitation problems. That's the look of light leak problems. Subtle. A stray LED on a charger in the room? Static?

And more confusing is that it is not typical direction for light leaks from either the dark slide or from the back itself. They would usually run left to right, not top to bottom?

 

[logan2z]

Something is off in the unevenness of the sky in the image that Kino modified. There is a bit too much of a definite line to the light/dark transitions. It almost looks as if there was a film spool sitting in chamber with light coming through- a shadow in the middle, two light-struck areas, then pretty hard lines on the outer edges (with a secondary reflection to the left?).

That isn't the look of agitation problems. That's the look of light leak problems. Subtle. A stray LED on a charger in the room? Static?

And more confusing is that it is not typical direction for light leaks from either the dark slide or from the back itself. They would usually run left to right, not top to bottom?

Hmm interesting. I keep the camera in a bag when I'm not using it so it's not exposed to much/any light. And it's the only negative on the roll that seems to exhibit this problem.

I think the only thing I can really do now is shoot another roll and send it to a different lab and see what happens.

 

[Dan Daniel]

Hmm interesting. I keep the camera in a bag when I'm not using it so it's not exposed to much/any light. And it's the only negative on the roll that seems to exhibit this problem.

I think the only thing I can really do now is shoot another roll and send it to a different lab and see what happens.

Any chance that the light (exposed) area extends beyond the image frame? We haven't seen the full frame plus beyond.

 

[Grim Tuesday]

Is there any chance this film went through an airport xray scanner or was placed next to something slightly radioactive a few times (maybe a thorium lens in your collection)?

 

[logan2z]

Is there any chance this film went through an airport xray scanner or was placed next to something slightly radioactive a few times (maybe a thorium lens in your collection)?

No, I haven't traveled with the camera and I don't own any radioactive lenses.

 

[logan2z]

Any chance that the light (exposed) area extends beyond the image frame? We haven't seen the full frame plus beyond.

Nope, there is nothing outside of the image frame.

 

[logan2z]

For what it's worth, I did ramp down the contrast on some of my other scans and I can see some of the 'banding' that is visible in the second scan I posted. So this has affected more than one frame as I originally thought. Not sure if this lends more credence to the processing error or light leak theory.

 

[Paul Ozzello]

I don't think those are light leaks from the camera back. If you say you had a similar problem with another camera and the same lab...

Also try a different brand of film, or a roll of E-6

 

[Deleted member 88956]

Well, the lab has owned up to a development error with respect to the second frame. Here's what they said:

"...we think you're right about uneven development caused by agitation. We don't see this often, and its usually noticeable on under or over exposed frames."

I don't think this frame was particularly under/overexposed so not sure what that last bit means. Anyway, I think it's time to move onto another lab or finally try my hand at home development.

Kind of admitted to wrong doing, so long you did your bad too? Since you don't think negatives were under/over exposed they really dd not admit to anything, IMHO of course.

But since B&W processing is not all that hard in a general sense, no to mention all the fun it brings along, running a roll with own processing would be quick to assess, if lab is not to be trusted.

 

[Dan Daniel]

By the way, you should be certain to talk to the lab. They need to figure out what is wrong in their line, and stop taking in people's film until they have it fixed. There are many places who develop B&W without these problems.

 

[devb]

I have the same problem with the lines along the edges with my SWC/M. I know it's not a development issue because it doesn't happen with any other 120 camera I own.

 

[logan2z]

By the way, you should be certain to talk to the lab. They need to figure out what is wrong in their line, and stop taking in people's film until they have it fixed. There are many places who develop B&W without these problems.

I spoke to the owner so he's aware of the issue. He was very apologetic and I have to assume that he'll take some steps to remedy the situation in his lab. But I'm done with them and will find somewhere else to process my film.

 

[logan2z]

I have the same problem with the lines along the edges with my SWC/M. I know it's not a development issue because it doesn't happen with any other 120 camera I own.

Interesting, thanks for posting. I have to assume this points to an issue with the film back, I can't see how this could be considered normal.

 

[logan2z]

Interesting, thanks for posting. I have to assume this points to an issue with the film back, I can't see how this could be considered normal.

Another thread about a similar issue, but no resolution posted.

https://www.photo.net/discuss/threads/hasselblad-lines-near-the-edge-of-the-frame.459194/

 

[Paul Ozzello]

Another thread about a similar issue, but no resolution posted.

https://www.photo.net/discuss/threads/hasselblad-lines-near-the-edge-of-the-frame.459194/

I think you have two separate issues going on. The streaks definitely look processing related, but the lines on the side are similar to the thread you linked to. Does your back have tapered rollers ?

I have both back types and went back to look at some old negatives from both and can't find any with lines.

I do have many rolls of TMax with streaks but they are different than yours and were traced back to those defective batches of Kodak film where the backing paper imprinted itself on the film. I doubt that's the case here but it wouldn't hurt to try a different brand of film and lab.

 

[Kino]

Interesting, thanks for posting. I have to assume this points to an issue with the film back, I can't see how this could be considered normal.

THAT is not normal... Who implied it was? There's a pretty large difference between faint lines just at the edge of the image aperture and those large smeary streaks (that look like a pressure issue).

The cause, however, could be the same; a back that needs to be cleaned/checked for proper operation.

 

[logan2z]

There's a pretty large difference between faint lines just at the edge of the image aperture and those large smeary streaks (that look like a pressure issue).

Agreed, I wasn't clear but I didn't intend to suggest that the two issues were of the same severity or necessarily caused by the same thing.

In my case I don't see the issue on every frame, so I'm not totally convinced there's a problem with the back. I'll have the roll developed at a different lab and see what happens.

 

[Scott Micciche]

I get these lines while using the 500 c/m as well. I do not see the lines while using the same magazines in my 2000 f/cm, so I suspect it is some internal light reflections. Maybe that crackly palpas stuff does work to tame those reflections

In the prior thread, the shine on the rollers was thought to be an issue, but I painted mine with non-reflective paint and the lines still appear.