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> Water as stop |
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#1
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Water as stop
Hi guys,
How long would you generally leave you film in water when using it as stop? I would generally of used the colleges chemicals but now we are off for the summer and I have film to develop. Thanks James |
#2
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Three sets of about 10 rapid inversions with three dumps seems to do the trick in my case.More wouldn't harm but three or four sets should do it
Mike |
#3
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Thanks Mike, will give it go.
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#4
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read the following notes on stop bath and fixer
http://www.freelists.org/post/pure-s...el-Gudzinowicz |
#5
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I use two fills, 15 to 20 quick inversions, dump, repeat, does the job for me
Richard
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jerseyinblackandwhite.blogspot.com |
#6
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the trouble is that water is not a stop it just dilutes the developer and slows development down stop bath as name implies stops development .all you have to do is develop a print, put it in stopbath a couple of seconds and then turn the light on and you will see what stop bath can do
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#7
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For film, water stop with agitation for a minute or so seems to work well for me. I use rather dilute developers, so that might make a difference.
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#8
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There's no doubt that a stop bath( citric/acetic acid suitably diluted)stops film development instantly and I never had problems with pinholes in the emulsion and the like with Ilford films. However I have seen emulsion issues reported with films from outside of the big three(Ilford Kodak Fuji) allegedly connected to acid stop bath.
If a water bath allows film development to continue and presumably for a very short period it must then in my experience I have never noticed the difference in negs "stopped" in water and negs previously stopped in an acid bath. Paper as I understand it, is quite different and an acid stop bath is really essential. I have never tried to "water stop" paper Mike |
#9
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For film I generally use a water stop, especialy woth film sauch as Fomapan, one of my main go to films, with no problem, I have also use water as a stop with paper, It works fine as long as you change the water often, say every 2 or 3 sheets of paper, I have never noticed any difference in paper stopped in water or stop bath,
Richard
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jerseyinblackandwhite.blogspot.com |
#10
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Water is fine for film. I usually use an acid stop for conventional developers but not for Diafine as the maker specifically recommends against it. I have used water with D76 and T-Max developer and never noticed a difference.
For paper I prefer a mild acid stop, but that only with conventional fixers. I've been thinking of going to TF5 fixer for paper, and with that you should NOT use an acid stop as it is not an acidic fixer but is near neutral ph. I use a citric acid based low odor stop bath now. It's just more pleasant and works just the same.
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