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> Flushing the negatives |
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#11
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In past years, for me, washing the negative roll was problematic. The shiny side would often become streaky from the salt residue in my local water supply. So, I resorted to boiling a large pan of water for an hour and decanting the salts off. Yet now, in recent years the Lancashire water supply has been as pure as can be. After 'washing' - which equates to dunking the spiral of film up and down in the open tank, about 20 times in about 5 changes of tap water - I Photo Flo for a minute or two; shake of as much water as I can then wipe the shiny side across a reel of kitchen roll, held between my knees. No scratches and importantly no salt rings or streaks. Then I hang up the length of film in a cupboard over night.
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#12
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Not at all relevant to the topic but the OP, The Wellington, only appears to have made that one post in early August and then has not participated since.
He may not be the first to have only posted once but usually the "one-offs" tend to be speculative posts from those who may be wondering whether to take the hobby of film up at all and to that extent I can understand one post only but The Wellington had some experience It always leaves me wondering Mike |
#13
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If I’m not in a hurry for the negatives I will often leave them soaking for 5 mins or so between water changes. I find that this removes a lot of the pink/ purple tinge in certain b/W films.
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#14
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My father tested the system when it was first publicised and found that it was not 100% accurate. Following some tests he concluded that the system worked perfectly BUT only when the film was removed (placed in a holding jug of water) and the tank cleaned before returning the spirals and washing the film. As someone who retailed materials from Ilford, my father asked one of the reps to check with the technicians if they had indeed removed the film and cleaned the tank / moved the film to a clean tank. The rep visited a couple of weeks later and confirmed that they had indeed moved the film to a clean tank when working out the washing sequence. Ever since then, I have (for more than 40 years) always followed the following sequence:
Bests, David. Note: my temporary website address is: http://dsallen.carpentier-galerie.de
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David, d.s.allen, fotograf dsallenberlin@gmail.com http://dsallen.carpentier-galerie.de |
#15
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Recently, whilst printing some of my negatives from the early 1980's, when I restarted in the darkroom in earnest, I also carried this maxim across to my developing of films as well. 'Just another minute of development will do no harm - just to be on the safe-side.' I think I was also a bit liberal with my temperatures as well, with me ending up with rather dense, but printable, negatives. I'm a bit more careful these days and my more recent negatives print much easier - the majority of the time... Terry S |
#16
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Having said that, I am one of those who give another couple of rinses "just to be sure" . Materials have changed over the years and it is not clear if they have verified this process under modern materials and conditions. I now have temperature-controlled water in my darkroom so I can set it to 20C and just stick a hose in the tank now to save my time. |
#17
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However, I am also sure far more people are like Bob, follow the Ilford method but then add a couple more on just in case. Personally, I knowingly over wash my negatives because it saves me having to do a lot of very boring tests for residual hypo across a wide range of wash water temperatures. Martin |
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