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#1
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How many prints per gallon of ...
I don't see a how many prints/rolls per gallon working/stock recommendation
in The Darkroom Cookbook, 2ed. I use the one I find in my Kodak Master Darkroom Data guide... instead when I can match up the formulae. Is there a good rule of thumb to follow? |
#2
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How many prints per gallon of ...
Rules of thumb:
80 sq. inches of film per 250 ml developer. The developer can be reused immediately one time, increasing the time by ~10%. Discard after use. For replenished systems remove old developer and add 1 1/2 oz of replenisher per 80 sq. inches such that the volume of developer is constant. See the manufacturer's data sheets for definitive information. 80 sq. inches = one 35mm 36 exposure cassette, one roll of 120 four 4x5s two 5x7s one 8x10 or anything that makes a contact proof on a sheet of 8x10. -- Nicholas O. Lindan, Cleveland, Ohio Darkroom Automation: F-Stop Timers, Enlarging Meters http://www.darkroomautomation.com/da-main.htm n o lindan at ix dot netcom dot com |
#3
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How many prints per gallon of ...
"Lew" wrote in message ... I don't see a how many prints/rolls per gallon working/stock recommendation in The Darkroom Cookbook, 2ed. I use the one I find in my Kodak Master Darkroom Data guide... instead when I can match up the formulae. Is there a good rule of thumb to follow? Developer, fixer or what? Also, if developer, print or film? -- -- Richard Knoppow Los Angeles, CA, USA |
#4
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How many prints per gallon of ...
Lew wrote:
I don't see a how many prints/rolls per gallon working/stock recommendation in The Darkroom Cookbook, 2ed. I use the one I find in my Kodak Master Darkroom Data guide... instead when I can match up the formulae. Is there a good rule of thumb to follow? I always use film developer one-shot. Paper developer (I use something like D-72, but with benzotriazole instead of KBr) I can use all day. When I use Amidol paper developer, I quit after 3 or 4 hours. I use Indicator Stop Bath on prints, and dump it when it starts to get a little dark. I never let it get blue. When using Amidol, I use SB-1 and toss it when it gets a little color or when I dump the developer. Indicator stop bath I filter through a new cotton ball and put it back in the bottle. For Negatives, I use SB-5 one-shot. For fixer, I use F-5 for both film and paper, in two-bath setup. I use separate sets of fixer for negatives and paper, and I count the sheets. I let it get up to about 80% of what Kodak say you can get, and then dump it. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 17:15:01 up 25 days, 9:06, 4 users, load average: 4.34, 4.62, 4.58 |
#5
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How many prints per gallon of ...
Sorry, I'm referring to developers.
"Richard Knoppow" wrote in message m... "Lew" wrote in message ... I don't see a how many prints/rolls per gallon working/stock recommendation in The Darkroom Cookbook, 2ed. I use the one I find in my Kodak Master Darkroom Data guide... instead when I can match up the formulae. Is there a good rule of thumb to follow? Developer, fixer or what? Also, if developer, print or film? -- -- Richard Knoppow Los Angeles, CA, USA |
#6
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How many prints per gallon of ...
I use D72/benzotriazole too... but "all day"? How many 8x10 equivalents are
you talking about? Also.. do you really notice any difference with Amidol? I thought differences were only apparent back in the day with high silver content papers "Jean-David Beyer" wrote in message news Lew wrote: I don't see a how many prints/rolls per gallon working/stock recommendation in The Darkroom Cookbook, 2ed. I use the one I find in my Kodak Master Darkroom Data guide... instead when I can match up the formulae. Is there a good rule of thumb to follow? I always use film developer one-shot. Paper developer (I use something like D-72, but with benzotriazole instead of KBr) I can use all day. When I use Amidol paper developer, I quit after 3 or 4 hours. I use Indicator Stop Bath on prints, and dump it when it starts to get a little dark. I never let it get blue. When using Amidol, I use SB-1 and toss it when it gets a little color or when I dump the developer. Indicator stop bath I filter through a new cotton ball and put it back in the bottle. For Negatives, I use SB-5 one-shot. For fixer, I use F-5 for both film and paper, in two-bath setup. I use separate sets of fixer for negatives and paper, and I count the sheets. I let it get up to about 80% of what Kodak say you can get, and then dump it. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 17:15:01 up 25 days, 9:06, 4 users, load average: 4.34, 4.62, 4.58 |
#7
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How many prints per gallon of ...
Lew wrote:
I use D72/benzotriazole too... but "all day"? How many 8x10 equivalents are you talking about? 10 or 20 at most in 1/2 gallon of 1+2 working solution. I usually get tired of printing at about that point. Also.. do you really notice any difference with Amidol? I thought differences were only apparent back in the day with high silver content papers It depends on the paper. I seldom use it now because it requires about one stop more exposure, and the developing solution does not last all day. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 08:15:01 up 26 days, 6 min, 3 users, load average: 4.45, 4.29, 4.28 |
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