Strange lines on negatives

[steveo]

First up I'm not sure this is in the right place....

These two negatives were made on the same day in the same camera but with different lenses and film holders. They were developed a few weeks apart and they've both got pretty prominent lines down them in near exactly the same place. So far so light leak, except one of the lines is black and the other white. Both done in a jobo 2509n and rotary processed in d23.

These are photos of the actual negatives on a light box.
https://farm1.staticflickr.com/568/23889708106_c3b6a23c32_b.jpg (https://flic.kr/p/Cp3ZV5)2015-12-22_11-31-55 (https://flic.kr/p/Cp3ZV5) by Steven (https://www.flickr.com/photos/49248828@N06/), on Flickr

https://farm6.staticflickr.com/5621/23620107160_739e1b92ea_b.jpg (https://flic.kr/p/BZedWU)2015-12-22_11-31-33 (https://flic.kr/p/BZedWU) by Steven (https://www.flickr.com/photos/49248828@N06/), on Flickr

Help!

[Michael Clark]

Can not see any dark line on the rebate edge of the top one , so maybe the film is not at fault. So that leaves camera light leak, holder light leak, and processing.

[Fred L]

In the second one, it's possible that the end of one sheet overlapped and touched the frame adjacent ? Could explain why the line is kind of not super straight. dunno but that's off the top of my head

[Bob Salomon]

What about those marks in the upper left corners? I think you have a processing problem.

[gerdasmith]

First up I'm not sure this is in the right place....

These two negatives were made on the same day in the same camera but with different lenses and film holders. They were developed a few weeks apart and they've both got pretty prominent lines down them in near exactly the same place. So far so light leak, except one of the lines is black and the other white. Both done in a jobo 2509n and rotary processed in d23.

These are photos of the actual negatives on a light box.
https://farm1.staticflickr.com/568/23889708106_c3b6a23c32_b.jpg (https://flic.kr/p/Cp3ZV5)2015-12-22_11-31-55 (https://flic.kr/p/Cp3ZV5) by Steven (https://www.flickr.com/photos/49248828@N06/), on Flickr

https://farm6.staticflickr.com/5621/23620107160_739e1b92ea_b.jpg (https://flic.kr/p/BZedWU)2015-12-22_11-31-33 (https://flic.kr/p/BZedWU) by Steven (https://www.flickr.com/photos/49248828@N06/), on Flickr

Help!
Can not see any dark line on the rebate edge of the top one

http://hautavis.net/113/o.png

[Jac@stafford.net]

It is a scanning issue.
.

[480sparky]

It is a scanning issue.
...........................................http://i214.photobucket.com/albums/cc172/480sparky/Emoticons/CalvinBlink2.gif

[steveo]

Can not see any dark line on the rebate edge of the top one , so maybe the film is not at fault. So that leaves camera light leak, holder light leak, and processing.


In the second one, it's possible that the end of one sheet overlapped and touched the frame adjacent ? Could explain why the line is kind of not super straight. dunno but that's off the top of my head
I was trying a new developer so I did both individually to be safe.


What about those marks in the upper left corners? I think you have a processing problem.

I think they're artefacts from the light box it's not very good and even in the corners.


Can not see any dark line on the rebate edge of the top one

http://hautavis.net/113/o.png

No, but I think that just rules out light leak in the holders.


It is a scanning issue.
.


...........................................http://i214.photobucket.com/albums/cc172/480sparky/Emoticons/CalvinBlink2.gif

Can't be a scanning issue, the marks are on the negative, these a straight photos of the negs sitting on a light box
They've not been scanned.

[Michael W]

I've no idea about the first one with the dark line. The second one with the clear line might be from some residual fix in the tank lid that then washed over the next batch of film. Happened to me once with a Jobo 2830. I had processed some film and washed the tank but obviously didn't wash the cup part of the lid that the chemicals are put in. Processed some more film a day or so later and was surprised the see streaks on the film that were semi clear. Analysing it I realised that the dev, stop and fix had gone in via the lid cup, but after fix I had removed the lid and poured the hypo clear in direct and had also done the water wash direct into the tank. Clearly I didn't wash the lid thoroughly and because fix was the last step I had done there was still some there to wash over the next batch of film when I did the presoak.

[Fred L]

what camera ? I'm also thinking holder since the artefact doesn't appear to hit the rebate. what's very curious is they're different densities.

[steveo]

I've no idea about the first one with the dark line. The second one with the clear line might be from some residual fix in the tank lid that then washed over the next batch of film. Happened to me once with a Jobo 2830. I had processed some film and washed the tank but obviously didn't wash the cup part of the lid that the chemicals are put in. Processed some more film a day or so later and was surprised the see streaks on the film that were semi clear. Analysing it I realised that the dev, stop and fix had gone in via the lid cup, but after fix I had removed the lid and poured the hypo clear in direct and had also done the water wash direct into the tank. Clearly I didn't wash the lid thoroughly and because fix was the last step I had done there was still some there to wash over the next batch of film when I did the presoak.

That could be a good shout, it wouldn't take much stray chemical to do some damage.


what camera ? I'm also thinking holder since the artefact doesn't appear to hit the rebate. what's very curious is they're different densities.

Its an old Arca Swiss B.

I think I'm going to have to go through the rest of the sheets from that morning and make some variations. I'll develop the rest by inversion and see if that helps. I wonder if there is two issues here they just happen to be quite close to each other.

[480sparky]

Rotate the film 180° in the holder, as well as how you load it into your developer, to help narrow down where the problem can occur.

[steveo]

Rotate the film 180° in the holder, as well as how you load it into your developer, to help narrow down where the problem can occur.

Good shout, will do.

[steveo]

I just hung up the negatives from the other side of the holder from the ones above and I'm still stumped. I inversion processed these in obsidian Aqua as I've been doing all year and though I'm still confused I'm fairly sure it's not the camera.

The partner to the one with the white line has the same line in the same place which points to the lens and since I only took the one shot with the 90mm I'll need to take some more pictures to check but I'm starting to think there may have been something on the rear element, a fibre or a bit of grass that has blow off when I put the lens away.

The other negative looks fine I'll need to put it on a light box when it's dry and give it a good look to be sure.

So not entirely conclusive, I'll need to put another sheet through the d23 to rule that out now, well tomorrow.

[Fred L]

and maybe process an unexposed sheet to see if you get the same line.

[steveo]

and maybe process an unexposed sheet to see if you get the same line.

Good shout.