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#21
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IIRC, your last "ARGH" was 'corrected' by using a more correct
agitation in the fixer. Nice brain Dan! Was that a coincidence? yeps. Are you up against a one in one million few rolls of film. usually i take lot of care. and when it happens someting like this i feel confused... Before I forget, I think 8 minutes in film strength rapid fix is to much. yes, I'm starting to think too. Or the tempeareture of fixing was increased more than 23°C form some reason... test test i've to male tests... Before I forget, I think 8 minutes in film strength rapid fix is to much. But sometimes a 5min of fix don't cleart the antihalo magenta stain enough. And, since this would give no problems in negatives life, sometime creates lots of problems in printing because increase contrast. Plus, sometimes a long time of washing not solve the magenta stain. All of my negatives have to be gray on the border: And so they are 98% of my negatives. Back to the film, two films are making trouble. What do they have in common; date of purchase, storage, transport, place of purchase, etc? The same film buyed in pack of ten: Neopan 400 35mm fresh. I think you are an experienced film processor with a mystery to solve. Hope I will do. I will solve this mistery with a saturday of testings and following some sugestions, like these writed by many mates in this NG. Thanks people. Hope my questions will help someone. Sorry for posting strange problems. Stefano Bramato -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#22
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IIRC, your last "ARGH" was 'corrected' by using a more correct
agitation in the fixer. Nice brain Dan! Was that a coincidence? yeps. Are you up against a one in one million few rolls of film. usually i take lot of care. and when it happens someting like this i feel confused... Before I forget, I think 8 minutes in film strength rapid fix is to much. yes, I'm starting to think too. Or the tempeareture of fixing was increased more than 23°C form some reason... test test i've to male tests... Before I forget, I think 8 minutes in film strength rapid fix is to much. But sometimes a 5min of fix don't cleart the antihalo magenta stain enough. And, since this would give no problems in negatives life, sometime creates lots of problems in printing because increase contrast. Plus, sometimes a long time of washing not solve the magenta stain. All of my negatives have to be gray on the border: And so they are 98% of my negatives. Back to the film, two films are making trouble. What do they have in common; date of purchase, storage, transport, place of purchase, etc? The same film buyed in pack of ten: Neopan 400 35mm fresh. I think you are an experienced film processor with a mystery to solve. Hope I will do. I will solve this mistery with a saturday of testings and following some sugestions, like these writed by many mates in this NG. Thanks people. Hope my questions will help someone. Sorry for posting strange problems. Stefano Bramato -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#23
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This time i feel the surface like satin, with some noise when touching.
Like touching a very fine sand. First time in 12 years, again. under strong magnification under my Durst "sandy surface" it seems like bubbles, everywhere in hilights and in low lights indifferently. Perhaps something happened to stir up sediments (rust, calcium precipitates, foreign debris) in your water supply. Our local newspaper periodically contains an announcement about the fire department routinely flushing the hydrants in a neighborhood, and warns that red (rusty) sediments will appear in the tap water of that neighborhood. Yes, indeed, there was crud appearing in my tap water. I experienced a run of many (ten, fifteen) years without problems, but on one memorable occasion, a series of eight rolls were damaged when sediments suddenly came gushing out of the tap during my developing run. After that disaster, I now attach a filter unit to my darkroom tap. _________________________ _________________________ stefano bramato wrote in message . it... Hallo. this week another error or strange effect on a negative. This time is very very difficult to understand. Negative was Neopan 400 developed in Microphen 1+1 7'30" @ 20°C stop in water fix with Ilford RapidFix 8' washed for 10' Once The negative has perfect contrast, density and so forth. +Once dryed so the negative looks quite good but the real problem is the emulsion side surface. Usually this surface is quite smoot, not glossy like the other side, but smooth. This time i feel the surface like satin, with some noise when touching. Like touching a very fine sand. First time in 12 years, again. under strong magnification under my Durst "sandy surface" it seems like bubbles, everywhere in hilights and in low lights indifferently. Once printed here are some results. http://www.bramatobros.com/posts/24092004/ Pics are quite heavy and large to allow a good vision of the problem. I need some serious help because this error in a batch of 4 roll it happens everytime in different intensity. But it happens and pratically my films are useless... Are this lot of film defective? Are this films burned by something in developing? No acid stop and normal fixing time was used. In the meantime i'm testing another kind of batch of strips of this film to test with Ilfosol and ID-11 as my usual developers... HELP!! |
#24
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"stefano bramato" wrote in message t... Hallo. this week another error or strange effect on a negative. This time is very very difficult to understand. Negative was Neopan 400 developed in Microphen 1+1 7'30" @ 20°C stop in water fix with Ilford RapidFix 8' washed for 10' Once The negative has perfect contrast, density and so forth. +Once dryed so the negative looks quite good but the real problem is the emulsion side surface. Usually this surface is quite smoot, not glossy like the other side, but smooth. This time i feel the surface like satin, with some noise when touching. Like touching a very fine sand. First time in 12 years, again. under strong magnification under my Durst "sandy surface" it seems like bubbles, everywhere in hilights and in low lights indifferently. Once printed here are some results. http://www.bramatobros.com/posts/24092004/ Pics are quite heavy and large to allow a good vision of the problem. I need some serious help because this error in a batch of 4 roll it happens everytime in different intensity. But it happens and pratically my films are useless... Are this lot of film defective? Are this films burned by something in developing? No acid stop and normal fixing time was used. In the meantime i'm testing another kind of batch of strips of this film to test with Ilfosol and ID-11 as my usual developers... HELP!! -- Non è bello cio che è bello figuriamoci cio che è brutto! How is your water quality? Was there a recent change in the water line plumbing prior to your darkroom? If you are on a city water supply, was there a water line break somewhere "upstream" from you? The first film I developed in my latest darkroom (years ago) had a "gritty" feel to it. I added a water filter and that solved the problem. (At first I added a faucet-mounted filter. Later, when the water heater gave out because of sediment in the water, I added a whole-house filter.) Ken Hart |
#25
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#26
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#27
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I think the problem was solved!!
YO! -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#28
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I think the problem was solved!!
YO! -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#29
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Good! What was it? And do not apologise for asking strange questions,
They are more fun than familiar questions. stefano bramato wrote: I think the problem was solved!! YO! -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#30
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Good! What was it? And do not apologise for asking strange questions, They are more fun than familiar questions. In few words was strong solution of fixer and anomalous time and temperature. After a whole sunday passed for test the results are in the foollowing words... the reply post is already published but I want to rewrite here for courtesy: ----------------- I have done today four tests, with four different developers, new fix and reduced fix time. Like you suggested there is something wrong in fix... test test test!! Alone in the dark testing today!! Is a rainy day!! I really think that the negative was destroyed by two differents factors at the same time. First of all I was helped by a friend in preparing the fix solution and other stuff, bEcause he was a friends who wanted to learn more on photography, ok? First reason: He says to me that he did fix solution slightly more concentrated than usual, like I use to do. But alot more concentrated: 1:3 instead instead **1+3,5** that is very different with rapid fixers. So I think that more acidic environment subtle wounded the emoulsion. Then a excessive fixing time: 10' instead of 5'-7,5' as I do when FRESH. More fixing time and concentration, this time and with this rolls, not did more bleach on highlits, like many books says but makes like burns and bubbles on the emulsion. Second reason: not stable water temperature. usually in my lab there is always 24°C. This time i can see that there are a couple of °C more high and low. But i beleieve that this cannot affect at all the washing but can help in desruption of film. Sorry people for using NG as reporting my esperiments, but after this i feel more sure of my self (and of course, less of my learning friend.... ) Today tests results with as usual stock treatments? Perfect negatives... and I feel more comfortable with myself! -------------------------- ;D Ciao, Stefano -- Non è bello cio che è bello figuriamoci cio che è brutto! |
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