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#11
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Last, XTol is environment friendly, which adds to its interest.
(I used Delta100, TMax100, HP5, and Foma 100 /T200 films in 120 rolls). Emmanuel Thanks Emmanuel for your words. Only one thing: I always used bottled low mineral water. maybe surely not better than demineralized water, but far far better than the normal water from home sink. And cost me about 1,30 Euro for 12 litres. Low low mineral water from the supermarket or home store.... It's damn good idea, isn't it? Ciao, Stefano -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#12
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Regarding X-Tol, well, that's the developer I mostly use for
low/medium speed films (up to 1600ISO). In 35mm, I usually dilute it 1+1, for larger negs you can go 1+3 (coarser grain but more acutance). I consider it as one of the best compromises between fine-grain (finer than D-76/ID-11), acutance and speed. Properly mixed and stored, the stock solution can last very long: I diluted a 5 liters pack in March 2002 and it still gives good results, more than 2 years and a half after (much longer than what Kodak states). I keep some to see if it can reach the 3 years ... Ciao Claudio, is always a pleasure to read your words and suggestions. I want to try this developer. Bought two packs for preparing 5 litres... hope well!! PS: i want to prepare myself some developers and fixers too... it's just arrived the mini-scale and anchell's cookbook!! just to add snap on my life!! wow|| Salutoni, Stefano -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#13
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In article ,
Michael A. Covington wrote: "Thor Lancelot Simon" wrote in message ... Kodak does sell a product that's basically meant to turn distilled water into "average North American tap water" for use in mixing developer, though. I can't ever remember its name, but if you're going to mix developer with distilled water you should really use it. I've never heard that. I've always had good results using either distilled water or tap water (the results are the same except that I can trust the distilled water to be somewhat cleaner and more free of dissolved air). What is this product? Well, it's *not* "color developer starter"; I always get it mixed up and then remind myself that that's the _wrong_ product. I will browse a bit and see if I can find the right one on Kodak's web site. It's basically just a plastic envelope full of highly soluble mineral salts that give you the exact water Kodak formulated their photographic chemicals for, when added to distalled water. It's cheap, too. I haven't used it myself in years, because I no longer live somewhere where well water (and well water with too much dissolved iron and sulfur to be good for photo processing, at that) is the norm. But if you want to be able to follow Kodak's recommendations for touchy processes like, say, E-6, with confidence, and you're using distilled water to mix the stock solutions, it's a really good idea (and it won't hurt to use it for black and white processing, either). -- Thor Lancelot Simon But as he knew no bad language, he had called him all the names of common objects that he could think of, and had screamed: "You lamp! You towel! You plate!" and so on. --Sigmund Freud |
#14
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In Paris, the tap water is full of calcium and leaves little mineral
deposits all over the film. I solved the problem by giving the film a final rinse for 30 sec. or so in water to which I had added 1/2 tsp or so of water softening crystals along with Photo-Flo. This took care of the problem and I got clean negs. Here in Maine, I don't have that problem, and Photo-Flo in the final rinse does just fine by itself. Richard Knoppow wrote: "Michael A. Covington" wrote in message ... "Thor Lancelot Simon" wrote in message ... It's not necessarily a good idea to use distilled water to mix developer; Kodak formulates it for "average North American tap water" and water with no mineral content at all is definitely not that. Kodak does sell a product that's basically meant to turn distilled water into "average North American tap water" for use in mixing developer, though. I can't ever remember its name, but if you're going to mix developer with distilled water you should really use it. I've never heard that. I've always had good results using either distilled water or tap water (the results are the same except that I can trust the distilled water to be somewhat cleaner and more free of dissolved air). What is this product? I have also heard this but never seen any substantiation. Kodak _does_ make its products with the idea that less than ideal tap water is going to be used to mix them but the difference is in the use of buffering agents to compensate for water pH and the addition of sequestering agents to keep calcium and magnesium carbonates in the water from precipitating on the emulsion. Bottled drinking water has minerals in it for flavor. Really pure water tasts very flat as does completely de-aereated water. Water can be improved for photographic purposes by boiling it. Boil the water for about five minutes and allow it to sit and cool. Then syphon off the clear water. Boiling serves three purposes: it drives off dissolved gasses (like air and chlorine); it reduces temporary hardness by converting some of the dissolved carbonates into insoluble form. They then are deposited on the walls of the vessel or are precipitated and fall to the bottom of the vessel. It coagulates any organic matter which also is precipitated during cooling. The last is probably of no significance in city water systems but may be important for well water. Since Aluminum and copper can cause fogging its best to use a container of some other material for boiling. Boiling will NOT remove chloramines, currently used in many city water supplies in place of chlorine. This can be removed by the use of an activated charcoal filter like a Brita filter. Neither chlorine or chloramines appear to have any effect on photographic chemistry. Chlorine is destroyed by hypo. Dirty water is probably a worse problem in most places than the purity. A good water filter is helpful but even a coffee filter will help a lot. The use of a rinse of clean water after washing will remove dirt from dirty wash water. I suggest a rinse as follows: Water to 1 liter Isopropyl alcohol, 99% 25 ml Kodak Photo Flo 2.5 ml (half strength) 70% Isopropyl rubbing alcohol can be used, the amount is then 35ml. Just make sure its just alcohol and water, not the kind with Oil of Wintergreen or other flavorings in it. Soak the film in this for about two minutes and hang up to dry without sqeegeeing. Prints can be rinsed in plain clean water and squeegeed off with a soft sponge before drying. |
#15
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In Paris, the tap water is full of calcium and leaves little mineral
deposits all over the film. I solved the problem by giving the film a final rinse for 30 sec. or so in water to which I had added 1/2 tsp or so of water softening crystals along with Photo-Flo. This took care of the problem and I got clean negs. Here in Maine, I don't have that problem, and Photo-Flo in the final rinse does just fine by itself. Richard Knoppow wrote: "Michael A. Covington" wrote in message ... "Thor Lancelot Simon" wrote in message ... It's not necessarily a good idea to use distilled water to mix developer; Kodak formulates it for "average North American tap water" and water with no mineral content at all is definitely not that. Kodak does sell a product that's basically meant to turn distilled water into "average North American tap water" for use in mixing developer, though. I can't ever remember its name, but if you're going to mix developer with distilled water you should really use it. I've never heard that. I've always had good results using either distilled water or tap water (the results are the same except that I can trust the distilled water to be somewhat cleaner and more free of dissolved air). What is this product? I have also heard this but never seen any substantiation. Kodak _does_ make its products with the idea that less than ideal tap water is going to be used to mix them but the difference is in the use of buffering agents to compensate for water pH and the addition of sequestering agents to keep calcium and magnesium carbonates in the water from precipitating on the emulsion. Bottled drinking water has minerals in it for flavor. Really pure water tasts very flat as does completely de-aereated water. Water can be improved for photographic purposes by boiling it. Boil the water for about five minutes and allow it to sit and cool. Then syphon off the clear water. Boiling serves three purposes: it drives off dissolved gasses (like air and chlorine); it reduces temporary hardness by converting some of the dissolved carbonates into insoluble form. They then are deposited on the walls of the vessel or are precipitated and fall to the bottom of the vessel. It coagulates any organic matter which also is precipitated during cooling. The last is probably of no significance in city water systems but may be important for well water. Since Aluminum and copper can cause fogging its best to use a container of some other material for boiling. Boiling will NOT remove chloramines, currently used in many city water supplies in place of chlorine. This can be removed by the use of an activated charcoal filter like a Brita filter. Neither chlorine or chloramines appear to have any effect on photographic chemistry. Chlorine is destroyed by hypo. Dirty water is probably a worse problem in most places than the purity. A good water filter is helpful but even a coffee filter will help a lot. The use of a rinse of clean water after washing will remove dirt from dirty wash water. I suggest a rinse as follows: Water to 1 liter Isopropyl alcohol, 99% 25 ml Kodak Photo Flo 2.5 ml (half strength) 70% Isopropyl rubbing alcohol can be used, the amount is then 35ml. Just make sure its just alcohol and water, not the kind with Oil of Wintergreen or other flavorings in it. Soak the film in this for about two minutes and hang up to dry without sqeegeeing. Prints can be rinsed in plain clean water and squeegeed off with a soft sponge before drying. |
#16
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On Mon, 25 Oct 2004 21:48:18 GMT, stefano bramato
wrote: Can someone help me? Few words are happily enough and well accepted!! Stick with the ID11. No need to change.If Ilford does go belly-up you can switch to D76 which is comparable to ID-11. HC110 is OK if you're using medium or large format but 35mm shows a little too much grain for my taste. Regards, John S. Douglas, Photographer - http://www.puresilver.org Please remove the "_" when replying via email |
#17
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On Mon, 25 Oct 2004 21:48:18 GMT, stefano bramato
wrote: Can someone help me? Few words are happily enough and well accepted!! Stick with the ID11. No need to change.If Ilford does go belly-up you can switch to D76 which is comparable to ID-11. HC110 is OK if you're using medium or large format but 35mm shows a little too much grain for my taste. Regards, John S. Douglas, Photographer - http://www.puresilver.org Please remove the "_" when replying via email |
#18
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Indeed, low mineral water is a great idea.
My concern with tap water is the amount of chloride (easy to smell) which has constantly increased during the last 5 years and has reached a very high level since the anti-terror gouvernment actions in 2002 (I am living in Lyon, a major city in France... when I have a chance to spend a week-end in the Alps, the tap water is just perfect to drink and for developing films!). Cheers, Emmanuel "stefano bramato" wrote in message t... Last, XTol is environment friendly, which adds to its interest. (I used Delta100, TMax100, HP5, and Foma 100 /T200 films in 120 rolls). Emmanuel Thanks Emmanuel for your words. Only one thing: I always used bottled low mineral water. maybe surely not better than demineralized water, but far far better than the normal water from home sink. And cost me about 1,30 Euro for 12 litres. Low low mineral water from the supermarket or home store.... It's damn good idea, isn't it? Ciao, Stefano -- Non è bello cio che è bello figuriamoci cio che è brutto! |
#19
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Ecolar wrote:
Indeed, low mineral water is a great idea. My concern with tap water is the amount of chloride (easy to smell) which has constantly increased during the last 5 years and has reached a very high level since the anti-terror gouvernment actions in 2002 (I am living in Lyon, a major city in France... when I have a chance to spend a week-end in the Alps, the tap water is just perfect to drink and for developing films!). According to Kodak, at least, chlorine and chloramine in tap water (at least at levels permitted for drinking) don't have any effect on developers or development. -- The challenge to the photographer is to command the medium, to use whatever current equipment and technology furthers his creative objectives, without sacrificing the ability to make his own decisions. -- Ansel Adams Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com Opinions expressed are my own -- take them for what they're worth and don't expect them to be perfect. |
#20
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Ecolar wrote:
Indeed, low mineral water is a great idea. My concern with tap water is the amount of chloride (easy to smell) which has constantly increased during the last 5 years and has reached a very high level since the anti-terror gouvernment actions in 2002 (I am living in Lyon, a major city in France... when I have a chance to spend a week-end in the Alps, the tap water is just perfect to drink and for developing films!). According to Kodak, at least, chlorine and chloramine in tap water (at least at levels permitted for drinking) don't have any effect on developers or development. -- The challenge to the photographer is to command the medium, to use whatever current equipment and technology furthers his creative objectives, without sacrificing the ability to make his own decisions. -- Ansel Adams Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com Opinions expressed are my own -- take them for what they're worth and don't expect them to be perfect. |
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