The batch number on one of the boxes I was able to salvage says "67BPN1C01 /01 JUL 2021"
The Pan F Plus stock I have left which has worked fine so far is shown in this photo. Presumably your batch is newer as recently ordered?
Not the first time such flocks of sinoidal scratches have been reported for Ilford films:
On the backside of the film.
https://www.photrio.com/forum/threads/wavy-scratches-on-base-side-of-ilford-hp5-120.107301/
https://www.largeformatphotography....d-help-with-film-issue-(consistent-scratches)
In addition to what Matt has asked, are the scratches as uniform as the top sine wave you showed us i.e. exact sine waves? If they are can anyone think of what might cause waves with a rock-steady amplitude to form either in a camera or while processing? It just seems such an unusual wave for it to be actual in camera or in tank processingDo the marks show up in either a scan of the negatives or an enlarged optical print of the negatives?
Oh wow. So I am not the only one.
In addition to what Matt has asked, are the scratches as uniform as the top sine wave you showed us i.e. exact sine waves? If they are can anyone think of what might cause waves with a rock-steady amplitude to form either in a camera or while processing? It just seems such an unusual wave for it to be actual in camera or in tank processing
As the waves run the whole length of the film it suggests something that is "there" for the whole film or the whole film has had to pass whatever causes it but if the camera is the same as was used on the unmarked film then either it is a defect/damage that occurred prior to you getting the film or something is now in the camera that wasn't there before
It might pay you to show the film dealer what you have and ask if any other customer has reported such problems with that batch of films .
Ultimately contact with Ilford might be needed
pentaxuser
So what would you conclude from this observation and what do you feel you need to do now as with all respect to Photrio it would look to me that Photrio is unlikely to provide an answer despite having tried its bestYes they are, they are repetitious throughout the length of the film.
I would think that any material trapped inside of a film back would cause a more linear scratch. If the material moved about while the film was winding then the scratch wouldn't be continuous.
Not the first time such flocks of sinoidal scratches have been reported for Ilford films:
On the backside of the film.
https://www.photrio.com/forum/threads/wavy-scratches-on-base-side-of-ilford-hp5-120.107301/
https://www.largeformatphotography....d-help-with-film-issue-(consistent-scratches)
<snipped>
After developing my rolls: On the Pan F Plus rolls I notice that they both have, what I would describe as, multiline, thin wavy lines going through the whole length of the film. They do resemble scratch marks that almost resemble what a sine wave would look like but a lot more shallower. I have worked with sound files for a long time and that caught my eye. These marks are visible at both viewing the negatives at an angle and looking dead-on at the negative up against a light source.
At first I thought that maybe it could have been a drying issue. I removed one of the negative strips from my sleeve and dampened a blank spot, between frames, with a tiny drop or two of distilled water from a clean pipette, and ever-so-gently wiped that part down with a very fine and clean cloth. That didn’t remove the marks. Next I went to inspect my camera’s film back. Nothing I could find that would cause multiple lines. My thinking is if the camera was responsible then the lines would be linear and not wavy. If a particle of something bounced around in the magazine then the scratch wouldn’t be a wave nor a perfect line for that matter. It would be more like a periodically spaced kind of scratch/mark.
<snipped>
What if any was the conclusion to these threads and what if any was the response of Ilford, assuming it was asked to contribute
Hi What About Bob,
After contacting Harman's then-APUG contact Simon (who was also a director), I returned the negatives to Harman Technology's QC department, who examined them. The problem turned out to be flow lines in the base material that had been there before coating. Harman assured me the flow lines wouldn't show up on a print but I've never printed those negatives, !
I think Harman still have a contact on this site; it might be worthwhile sending their contact a PM or posting a brief note in the Ilford sponsor's forum. Otherwise, nip onto their website and send them an e-mail and be prepared to give emulsion batch numbers, expiry dates, etc. It's the only time I've found problems with Ilford films or papers.
Cheers,
kevs
So it appears that Harman admitted [in 2013] it was a manufacturing defect...
Isn't it time that those with the defect wrote to Harman quoting their own relevant info and making reference to this thread and the earlier thread in which Harman admits to a problem?
We need to dispel the idea that there is a regular watching brief here from Ilford that responds whenever there is a "complaint" or request for information from it
pentaxuser
Hi What About Bob,
I had this problem a few years back; I found odd, wavy, scratch-like lines on my FP4 Plus 120 negatives; they were down the entire length of the film and were so wavy the could not have been caused by the camera. After contacting Harman's then-APUG contact Simon (who was also a director), I returned the negatives to Harman Technology's QC department, who examined them. The problem turned out to be flow lines in the base material that had been there before coating. Harman assured me the flow lines wouldn't show up on a print but I've never printed those negatives, I just repeated them while I still could. Shame because they are decent images; maybe I'll revisit them one day. Still they did send me a nice box of replacement films to use!
I think Harman still have a contact on this site; it might be worthwhile sending their contact a PM or posting a brief note in the Ilford sponsor's forum. Otherwise, nip onto their website and send them an e-mail and be prepared to give emulsion batch numbers, expiry dates, etc. It's the only time I've found problems with Ilford films or papers.
Cheers,
kevs
Also if the film is proved in the end to be at fault Harman will replace it for free
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?