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How To Remove Finger-prints From Negatives?  
User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Posted (13 years 2 months 1 week 3 days ago) and read 6706 times:

Hi,

It's a simple question: anyone knows how to remove finger-prints from negatives?

thanks
Luis

20 replies: All unread, jump to last
 
User currently offlineBlackened From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 2 months 1 week 2 days 23 hours ago) and read 6641 times:

...And how to remove them from slides?

I would say it's not at all possible because the acid you have on your skin destroys the picture. You can't really fix it anymore.


User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 2, posted (13 years 2 months 1 week 2 days 23 hours ago) and read 6637 times:

hhmmm that's bad news, the guys at the lab have made something terrible.

Anyway, thanks for your reply Blackened.

Luis


User currently offlineBlackened From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 2 months 1 week 2 days 23 hours ago) and read 6628 times:

I don't know if it's 100% true but it might be. Our skin has a pH of 5.5 and that's enough to damage a print. I've seen prints where you couldn't remove fingerprints anymore but with a little water it works there. I guess that's not possible with slides or negatives. But sometimes you can just take a piece of cloth and it more or less removes the fingerprint from a slide. Maybe it's not always so much acid but more fat and dirt.

User currently offlineJan Mogren From Sweden, joined Dec 2000, 2043 posts, RR: 50
Reply 4, posted (13 years 2 months 1 week 2 days 22 hours ago) and read 6627 times:

It seems to be more difficult with old fingerprints.
On slides, I have sometimes thought that if I can't get this fingerprint off, I might as well throw this slide away.
In those cases I tried a crazy stunt and used Isopropanol on a cottonstick, and it worked!
***I have NO IDEA if the slide/neg will be destroyed with time because of this !!******
In the case I described it simply didn't matter to me.
The slide would have been a goner..
/JM



AeroPresentation - Airline DVD's filmed in High Definition
User currently offlineScreener4 From , joined Dec 1969, posts, RR:
Reply 5, posted (13 years 2 months 1 week 2 days 21 hours ago) and read 6620 times:

I don't know if that's actually safe (alcohol), or if it will have a long-term damaging effect.

You should be able to wash your slides/negs under a running tap, and then with a CLEAN finger, gently brush away the fingerprint with your fingertip (while running your finger and the slide/negs under the tap the whole time). This will probably only work with NEW fingerprints, not ones that have been there for a while. (Don't forget, the negs/slides will have been washed with water in the lab, so it's quite safe - the only problem you might experience is drying marks - marks from where the water evaporates as the negs/slide dries out.)

Alternatively, you could try a lint-free tissue, as you would use to clean a camera lens. Only use this DRY, not wet.


User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 6, posted (13 years 2 months 1 week 2 days 21 hours ago) and read 6613 times:

I tried to wash the negative under a running tap with neutral water (I think), gently brushing away the fingerprint with my fingertip but the result was worse, now that frame is lost.

On the under side of the negative it seems some substance has melted creating an adhesive negative.

Luis


User currently offlineSonic99 From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 2 months 1 week 2 days 20 hours ago) and read 6616 times:


That was the emulsion Luis.

Fingerprints are not removable on either side of a slide. The oils and acids residing on fingers will embed in the emulsion (or opposite side) which is impossible to clean off (even trying to wipe off fingerprints with a lint-free cloth immediately after touching a slide).

At the lab where I get my slides developed all the personnel that handle slides wear white gloves so as not to leave their mark on the slides.

Stephan


User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 8, posted (13 years 2 months 1 week 2 days 20 hours ago) and read 6614 times:

Living and learning, no problem.

Thanks
Luis


User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 19
Reply 9, posted (13 years 2 months 1 week 2 days 14 hours ago) and read 6604 times:

if the print is not on the emulsion side, there is hope. Carefully swipe with a piece of lenstissue or lint-free cloth (clean one, of course).
Be very carefull or you will get scratches.



I wish I were flying
User currently offlineRindt From Germany, joined May 2000, 930 posts, RR: 13
Reply 10, posted (13 years 2 months 1 week 2 days 14 hours ago) and read 6599 times:

Fingerprints are easy to remove from slides on either side... provided the fingerprint is "fresh". Simply stick the slide under luke-warm water, and rub away the mark. Make sure the slide is NOT in the frame... this could cause the glue to melt and damage the slide even further. With plastic mounts, the water never quite dries properly around the edges, so it's necessary that the slide be removed from its mount.

Once the mark has been removed, hang it to dry for about 20 minutes... I have done this a few times when slides have been accidentaly "soiled".

Regards,
Rob




What other people think of you is none of your business!
User currently offlineAKE0404AR From United States of America, joined May 2000, 2535 posts, RR: 46
Reply 11, posted (13 years 2 months 1 week 2 days 9 hours ago) and read 6578 times:

White gloves were already mentioned as a precaution measure.... back when I still shot prints, while scanning I always worn white gloves to minimize the possibility of having fingerprints on the neg.

Vasco


User currently offlineBlackened From , joined Dec 1969, posts, RR:
Reply 12, posted (13 years 2 months 1 week 2 days 8 hours ago) and read 6575 times:

Where can you get the white gloves from? Do they sell them at photo stores?

User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 19
Reply 13, posted (13 years 2 months 1 week 2 days 8 hours ago) and read 6573 times:

theatrical supplies comes to mind. Might check it out myself.


I wish I were flying
User currently offlineGranite From UK - Scotland, joined May 1999, 5568 posts, RR: 64
Reply 14, posted (13 years 2 months 1 week 1 day 13 hours ago) and read 6562 times:
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Hi Mirage

The best way to not to have fingerprints on your negatives would be to stop holding them with your fingers.

Hope this information helps.

Regards
Gary Watt
Aberdeen, Scotland


User currently offlineAKE0404AR From United States of America, joined May 2000, 2535 posts, RR: 46
Reply 15, posted (13 years 2 months 1 week 1 day 12 hours ago) and read 6558 times:

Gary,

was that a little bit sarcastic....?????



White gloves are sold at most photo stores for a couple of bucks....

Vasco


User currently offlineGranite From UK - Scotland, joined May 1999, 5568 posts, RR: 64
Reply 16, posted (13 years 2 months 1 week 1 day 12 hours ago) and read 6554 times:
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Hi Vasco

Yes, a little sarcastic but a nice touch I thought.

I have a pair of white gloves also but my hands seem to be getting bigger as I can hardly get them on now.

Need to get bigger gloves  Smile

Regards
Gary Watt
Aberdeen, Scotland


User currently offlineSukhoi From Sweden, joined May 2006, 373 posts, RR: 8
Reply 17, posted (13 years 2 months 1 week 1 day 11 hours ago) and read 6552 times:

The best way to not to have fingerprints on your negatives would be to stop holding them with your fingers.

A classic piece of advice from Gary Big grin

Gary has been pulling too many rabbits out of hats thats why his gloves dont fit  Wink/being sarcastic

Cheers

Paul


User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 18, posted (13 years 2 months 1 week 1 day 8 hours ago) and read 6546 times:

"Hi Mirage

The best way to not to have fingerprints on your negatives would be to stop holding them with your fingers."

Hey Gary, what's your problem? Can't you read english?

Read my post were I wrote: "the guys at the lab have made something terrible.

hope this helps

Luis


User currently offlineGranite From UK - Scotland, joined May 1999, 5568 posts, RR: 64
Reply 19, posted (13 years 2 months 1 week 1 day 7 hours ago) and read 6541 times:
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Hi Mirage

Sorry, I did't actually read your post, only the header.

Yes, I can read English, infact it is my native language. If you look at my profile you will see where I am from.
respected users list. What is the reason for that?

As Vasco suggested, maybe a pair of gloves will help. They are very inexpensive. If they come in pairs, ie. 4 gloves, keep a pair for yourself and pass the spare pair (2 gloves) to the photo lab.

Now your negatives will be clean.

Regards
Gary Watt
Aberdeen, Scotland


User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 20, posted (13 years 2 months 1 week 1 day 6 hours ago) and read 6544 times:

To be very sincere I don't check my profile to see that respected users list. I filled my profile a long time ago and that's it, and I didn't ask nobody to put me in their respected users list. I respect everybody and I disagree with everybody when necessary.

I don't like gloves, reminds me hospitals.

Luis


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