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Message |
    
Reiner
Tinkerer
Username: Reiner
Post Number: 34
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 16, 2007 - 02:13 pm: | 
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Hi friends. Your help is appreciated.
This issue is not a camera issue but an issue of film photography. Recently I reviewed some of my oldest color slides. They date from 1980. Out of 200 slides I discovered 10 which started to develop fungus. In some cases these are just small feathery spots which grow from the side of a slide. To my surprise these are mostly on the film side and not on the emulsion side. A few are on the emulsion side. In one case - fortunately an unimportant image - the fungus grows in the middle of the slide's emulsion side and it has allready attacked half of the side.
Does anybody know how to clean the slides without destroying them? My idea is to use vinegar or ammonium to clean the film side. The emulsion side is more delicate however. Any hints are wellcome. |
Glenn
Tinkerer
Username: Glenn
Post Number: 119
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 16, 2007 - 05:28 pm: |
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The only way to solve the problem if card mounts are used, is to remove the mount and remount after cleaning. I believe there is a specific cleaning solution available to the film preservation industry. However I have found that a quick rinse in acid stop-bath and then a good rinse, solves the problem. |
Wernerjb
Tinkerer
Username: Wernerjb
Post Number: 84
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, January 17, 2007 - 05:52 am: |
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Hi Reiner, the oldest slides I own are from the mid fifties, not taken by myself, of course. Several years ago I detected what was then unidentifiable dark spots on them. Later I learned that they had caught fungus. I took all those slides out of their solid glass frames and used glassless frames instead after a treatment similar to what Glenn suggests. They haven't changed since then and I hope they won't in the time to come, W. |
Alex
Tinkerer
Username: Alex
Post Number: 12
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, January 17, 2007 - 01:43 pm: |
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You might want to try PEC-12 and PEC-PADS from Photographic Solutions.
http://www.photosol.com/products.htm
Alex |
