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  Photography Forum: Darkroom Techniques Forum: 
  Q. Cure for water spots on developed film

Asked by jeri ann payne    (K=20) on 8/27/2007 
Hmmm... I'm having some intermittent water spots after my C41 color negs have dried, eventhough I use a once over wipe with a film squeegee prior to hanging for drying? Anyone suggest a product to use to eliminate these? FYI... I am using a Unicolor C41 kit to process, and hand processing in Paterson daylight tanks... many thanks, Jeri


    



 Paul Schofield   (K=5970) - Comment Date 8/28/2007
There is a product called a wetting agent where one or two drops are added at the washing stage. When I process my B&W and slide films I use one or two drops of household washing liquid (for dishes) instead, when I am washing the film before the squeedgee stage.

That said wetting solutions are said to be better.





 John Rusinko   (K=401) - Comment Date 3/12/2008
I had the same problem when I used tap water and Kodak's 'Photo-flo' as a wetting agent. I switched to distilled water for the 'Photo-flo' solution, and so far the spots disappeared. You could have really hard water.

John





 Jeroen Wenting  Donor  (K=25317) - Comment Date 3/12/2008
alternatively a teeny tiny drop of detergent (same stuff you use to do the dishes) in the final flushing sequence also does wonders.
Fill the tank, add a droplet of the stuff, and gently rotate or pull the processed and still wet film through it. Does the same thing, breaks the surface tension and helps prevent water spots.




Phillip Cohen
 Phillip Cohen  Donor  (K=10561) - Comment Date 3/13/2008
Try using distilled water in the stabilizer bath, as the others have mentioned you can put a few drops of photo flo solution in there as well. Do not rinse or squeege the film after the stabilizer step, the stabilizer needs to dry on the film. Just hang it up in a dust free place and you should be good. I never have any water spots on my film since I switched to distilled water in the final bath.

Phil





 Michael Neumann   (K=119) - Comment Date 7/23/2008
Photo Flo is the answer to your problem.

You should never ever ever squeege your film. Film, after it has been developed, is basicaly like a thin piece of plastic with a very soft emusion attached to it. That emusion is what contains your image and it is very fragile and very easy to damage or scratch. Squeeging film is one of the absolute no no's when developing your own film. You can squeege prints but just say no to film.




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