Bromide Drag or X-ray damage?
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...like what?
this looks like insufficient agitation in the first 20 seconds of development,,, causes these minus density on negative which prints as dark lines in print... very common problem, most noticable in neutral grey backgrounds.
MattKing
Moderator
Are you sure that this isn't an artifact of your film scanning? Can you see it on the negatives or does it move when you rotate the negatives and re-scan them?
The development and scanning were made by third parties. I'll check the negative on a light table and see if I can catch anything.
FWIW I know the scanning facility used an epson v800.
My concern is with x-ray damage. I buy film internationally and always a bit cagey about getting in trouble with x rays.
All else I can live with.
It's not X-rays. They would fog like light.
It doesn't look like classic radiation damage, but the newer computerized tomography scanners produce a completely new type of damage.
There is a recent thread here that shows possible radiation damage. https://www.photrio.com/forum/threads/new-airport-scanners.170709/
The effect you see here is what I obtained with my one and only attempt to process 120 film with semi-stand development. I would bet on bromide drag.
There is a recent thread here that shows possible radiation damage. https://www.photrio.com/forum/threads/new-airport-scanners.170709/
The effect you see here is what I obtained with my one and only attempt to process 120 film with semi-stand development. I would bet on bromide drag.
Is that 35mm film? If it looks like it’s bleeding down from the sprocket holes that would be typical for bromide drag.
Actually its 120. My guess is its from the contact from the reel to the film.
Thank you!
Andrew O'Neill
Moderator
Folks, if you invert the image to a negative, it is clearly not light leaks or bromide drag. I had exactly the same bands on some 8x10 infrared film shipped in from abroad. It's x-ray damage.
Please explain. How is it clearly not bromide drag?
MattKing
Moderator
It is clearly banding, which could very well be X-ray damage.
But I've certainly seen banding as a result of scanning as well.
But I've certainly seen banding as a result of scanning as well.
MattKing
Moderator
With bromide drag the bands tend to be darker near the edge of the film. As that is 120 film, there are no sprocket holes to impart the particular regularity of the banding that you see, particularly when the image is inverted to a negative.
EDIT:
Andrew O'Neill
Moderator
I have a lot of experience with bromide drag from stand development failures. That is NOT bromide drag. It just does not behave that way. And as I mentioned, I have those very same bands on several sheets of IR film that were x-rayed. Just because the film received x-raying by a carry-on scanner, doesn't mean that it's film safe anymore. Recently there was a discussion on this very topic.
This was an old style x-ray machine. Other films that went thru do not present this issue. I suppose that doesn't rule it out. Still worried it might have been that.
That said, your answer is deeply opaque. One cannot know what "just does not behave that way" means other than to take it in faith.
But thank you for sharing your hard earned experience anyways. I will update about new scans when I get them.
Andrew O'Neill
Moderator
Does not behave that way means, bromide drag doesn't look like that. Not sure how my answer was "deeply opaque", but oh well. I tried my best to help you. I hope it's a scanning issue. At least that can be rectified.
I just meant it didn't clarify visual difference between bromide drag and x-ray damage.
I'm sorry if the tone came off as rude. I appreciate the time you took to help me. Thank you.
On the negative, those bands seem to run well down past the sky. I wouldn't expect bromide drag to be that visible that far across on 120, but I'd expect X-ray damage to be more even (from older equipment) or more sharply defined (from new, CT-like systems). I suspect a light leak in the developing tank.
Andrew O'Neill
Moderator
The only other time I saw bands similar to that, were from people developing sheet film in older SP-445 daylight tank.
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