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#11
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Lith film emulation
On 25 Ott, 01:50, wrote:
"Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. |
#12
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Lith film emulation
On 25 Ott, 13:06, piterengel wrote:
On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. This is a self-answer! I've found that sodium sulphite can be used instead of bisulphite. Considering the small amount in D-85 and making the conversion using molecular weights I think to try this way. Bye P. |
#13
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Lith film emulation
On 2007-10-25, piterengel wrote:
On 25 Ott, 13:06, piterengel wrote: On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. This is a self-answer! I've found that sodium sulphite can be used instead of bisulphite. Considering the small amount in D-85 and making the conversion using molecular weights I think to try this way. I do not know how critical pH is in this solution, but if it matters, sodium bisulphite is more acid than sodium sulphite. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 10:40:01 up 2 days, 2:58, 5 users, load average: 5.30, 5.32, 5.26 |
#14
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Lith film emulation
On 25 Ott, 16:41, Jean-David Beyer
wrote: On 2007-10-25, piterengel wrote: On 25 Ott, 13:06, piterengel wrote: On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. This is a self-answer! I've found that sodium sulphite can be used instead of bisulphite. Considering the small amount in D-85 and making the conversion using molecular weights I think to try this way. I do not know how critical pH is in this solution, but if it matters, sodium bisulphite is more acid than sodium sulphite. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 10:40:01 up 2 days, 2:58, 5 users, load average: 5.30, 5.32, 5.26 D-85 has boric acid in formula, maybe it is better to add a very small amount of acetic acid to decrease pH, even if I'm not sure it is really necessary. Anyway, I'll try ID-13 first, if I'm lucky this works well. Bye |
#15
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Lith film emulation
wrote in message ups.com... "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan A good tip, thanks. -- --- Richard Knoppow Los Angeles, CA, USA |
#16
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Lith film emulation
"piterengel" wrote in message oups.com... On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. Photographic sodium bisulfite is actually mostly sodium metabisulfite and metabisulfite can be substituted. Sodium sulfite is not the same as the bisulfite. Sulfite is slightly alkaline, bisulfite is slightly acid. The two make a buffer and are used together, for instance, in Kodak fine grain developer D-25 and in Kodak Hypo Clearing Agent to get a neutral pH. Kodak has two versions of D-85, a single solution developer, D-85 and a two solution version called D-85b. The two solution version has better keeping properties. Both formulas specify potassium metabisulfite. I think the sodium form will work as well. Use whatever you can obtain most easily. Agfa/Ansco had similar formulas which call for sodium bisulfite so evidently the cation does not matter. The bisulfite of the Ansco formulas is, like Kodak, actually metabisulfite. -- --- Richard Knoppow Los Angeles, CA, USA |
#17
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Lith film emulation
On Oct 25, 6:36 pm, "Richard Knoppow" wrote:
"piterengel" wrote in message oups.com... On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. Photographic sodium bisulfite is actually mostly sodium metabisulfite and metabisulfite can be substituted. Sodium sulfite is not the same as the bisulfite. Sulfite is slightly alkaline, bisulfite is slightly acid. The two make a buffer and are used together, for instance, in Kodak fine grain developer D-25 and in Kodak Hypo Clearing Agent to get a neutral pH. Kodak has two versions of D-85, a single solution developer, D-85 and a two solution version called D-85b. The two solution version has better keeping properties. Both formulas specify potassium metabisulfite. I think the sodium form will work as well. Use whatever you can obtain most easily. Agfa/Ansco had similar formulas which call for sodium bisulfite so evidently the cation does not matter. The bisulfite of the Ansco formulas is, like Kodak, actually metabisulfite. -- --- Richard Knoppow Los Angeles, CA, USA These are my first two results. I've mounted on camera an EFKE 25 film, I've taken 8 pictures, cut this first part adn put into a tank. Than I've taken again 8 pictures, the same of first time, cut film and put un another tank. I've dobe this three times. Than I've developed first part with ID-13 for 3 mins. Images are well contrasted BUT NOT enough. I remember I'm trying to obtain LINE works. With the second part I've used Kodak D-85 for 2.5 mins. SURPRISE! Everything is disappeared!!! I've a totally empty film, without any shadow or kind of figure! What's happen? The third part is still into the tank waiting for tips. Bye and thanks P. |
#18
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Lith film emulation
On Oct 27, 10:05 am, piterengel wrote:
On Oct 25, 6:36 pm, "Richard Knoppow" wrote: "piterengel" wrote in message roups.com... On 25 Ott, 01:50, wrote: "Richard Knoppow" wrote: ... but lith film remains because it is used in a number of alternative photographic processes and for special effects such as masking. Richard Knoppow Los Angeles, CA, USA Check your local printing supply outlets or visit via the WWW Valley Litho, a Mid West mail order supplier of a vast selection of press room supplies including a large selection of lith - half tone process films and developers. Should add, also a somewhat unique assortment of film, paper, and darkroom supplies. Dan Well, after all these answers I want to try to use ID-13 and Kodak D-85, for 2-3 mins with fils. I have a matter with sodium bisulphite, ttah appears in D-85 formula. I've not this substance available, can I replace it with somenthing else? Is it really necessary? Thanks, I'll let you know the results of my tests. P. Photographic sodium bisulfite is actually mostly sodium metabisulfite and metabisulfite can be substituted. Sodium sulfite is not the same as the bisulfite. Sulfite is slightly alkaline, bisulfite is slightly acid. The two make a buffer and are used together, for instance, in Kodak fine grain developer D-25 and in Kodak Hypo Clearing Agent to get a neutral pH. Kodak has two versions of D-85, a single solution developer, D-85 and a two solution version called D-85b. The two solution version has better keeping properties. Both formulas specify potassium metabisulfite. I think the sodium form will work as well. Use whatever you can obtain most easily. Agfa/Ansco had similar formulas which call for sodium bisulfite so evidently the cation does not matter. The bisulfite of the Ansco formulas is, like Kodak, actually metabisulfite. -- --- Richard Knoppow Los Angeles, CA, USA These are my first two results. I've mounted on camera an EFKE 25 film, I've taken 8 pictures, cut this first part adn put into a tank. Than I've taken again 8 pictures, the same of first time, cut film and put un another tank. I've dobe this three times. Than I've developed first part with ID-13 for 3 mins. Images are well contrasted BUT NOT enough. I remember I'm trying to obtain LINE works. With the second part I've used Kodak D-85 for 2.5 mins. SURPRISE! Everything is disappeared!!! I've a totally empty film, without any shadow or kind of figure! What's happen? The third part is still into the tank waiting for tips. Bye and thanks P. A precisation on D-85. I've used acetone instead of paraformaldehyde, as found elsewhere in internet. P. |
#19
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Lith film emulation
"piterengel" wrote in message oups.com... snip These are my first two results. I've mounted on camera an EFKE 25 film, I've taken 8 pictures, cut this first part adn put into a tank. Than I've taken again 8 pictures, the same of first time, cut film and put un another tank. I've dobe this three times. Than I've developed first part with ID-13 for 3 mins. Images are well contrasted BUT NOT enough. I remember I'm trying to obtain LINE works. With the second part I've used Kodak D-85 for 2.5 mins. SURPRISE! Everything is disappeared!!! I've a totally empty film, without any shadow or kind of figure! What's happen? the D-85: Completely clear, including no edge printing? That's a processing problem. Either the developer had no activity at all, or you confused the developer and the fixer, and fixed the film first, completely clearing it. (Everyone has to make that mistake at least once...I'm waiting for it to happen to me!) You might want to take a chunk of film and just put it in the developer to see if it turns black, and how long it takes. |
#20
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Lith film emulation
On Oct 28, 3:48 am, "Ken Hart" wrote:
"piterengel" wrote in message oups.com... snip These are my first two results. I've mounted on camera an EFKE 25 film, I've taken 8 pictures, cut this first part adn put into a tank. Than I've taken again 8 pictures, the same of first time, cut film and put un another tank. I've dobe this three times. Than I've developed first part with ID-13 for 3 mins. Images are well contrasted BUT NOT enough. I remember I'm trying to obtain LINE works. With the second part I've used Kodak D-85 for 2.5 mins. SURPRISE! Everything is disappeared!!! I've a totally empty film, without any shadow or kind of figure! What's happen? the D-85: Completely clear, including no edge printing? That's a processing problem. Either the developer had no activity at all, or you confused the developer and the fixer, and fixed the film first, completely clearing it. (Everyone has to make that mistake at least once...I'm waiting for it to happen to me!) You might want to take a chunk of film and just put it in the developer to see if it turns black, and how long it takes. Assuming that errors can occour, this is not the case. I've prepared D-85 and immediately put into the tank, so I've developed film, not fixed. The fact is that everything is disappeared form film, numbers of pictures and trade mark too. Surely this is an extremely strong developer, I'm thinking to try again it but diluited ten times. Bye. P. |
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