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#1
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Adjust B&W paper development time when using Uniroller?
Hi,
For the first time this evening I developed a B&W print in my Uniroller drum on a motorized Uniroller base. I am using Ilford Multigrade IV RC "Deluxe" with Ilford Multigrade developer. Having never used a Uniroller before (and being unable to find directions for B&W print processing with it on the web), I just followed the paper's instructions for dish developing, using a dilution of 1:9 for one minute. This first print was a series of test exposures starting with 2 seconds at f/11. Now I realize that agitation and development time do not affect paper in the same way as they do film, and that saying 2 seconds at f/11 is completely relative to the density of the negative. Nonetheless, I was rather shocked to find that the the print came out absolutely completely black -- absolutely nothing came through, not even a hint of that 2 second exposure. So I experimented with the development time for the uniroller, and found that if I developed for only 20 seconds with constant drum agitation, I got relatively more of normal image (normal given that I was still over exposing the print by two stops -- see below). Now this is all very disorienting to me (I feel as dizzy as I myself were spinning in that drum!). I mean, it seems like I eventually got an ok print when developing it for 20 seconds (the final exposure time for this particular print turned out to be two stops less than where I started, half the time, and down from f/11 to f/16). But I'm working with a questionable negative, and am unsure if what I don't like about the final print is the negative, or whether something about the print process is mudying the print. Given my set up, I don't have a way of developing in trays and comparing the results with what I'm getting from the Uniroller. I AM SO CONFUSED!!! Is there a rule of thumb for print development time with a Uniroller? Should I try working with the multigrad developer in a more diluted form (ilford suggests 1:14 as an alternative to 1:9)? And does anywone know where I can find information about using a Uniroller for B&W processing on the web? Thanks! --Phil |
#2
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Adjust B&W paper development time when using Uniroller?
Phil Glaser wrote: Hi, For the first time this evening I developed a B&W print in my Uniroller drum on a motorized Uniroller base. I am using Ilford Multigrade IV RC "Deluxe" with Ilford Multigrade developer. Having never used a Uniroller before (and being unable to find directions for B&W print processing with it on the web), I just followed the paper's instructions for dish developing, using a dilution of 1:9 for one minute. This first print was a series of test exposures starting with 2 seconds at f/11. Now I realize that agitation and development time do not affect paper in the same way as they do film, and that saying 2 seconds at f/11 is completely relative to the density of the negative. Nonetheless, I was rather shocked to find that the the print came out absolutely completely black -- absolutely nothing came through, not even a hint of that 2 second exposure. So I experimented with the development time for the uniroller, and found that if I developed for only 20 seconds with constant drum agitation, I got relatively more of normal image (normal given that I was still over exposing the print by two stops -- see below). Now this is all very disorienting to me (I feel as dizzy as I myself were spinning in that drum!). I mean, it seems like I eventually got an ok print when developing it for 20 seconds (the final exposure time for this particular print turned out to be two stops less than where I started, half the time, and down from f/11 to f/16). But I'm working with a questionable negative, and am unsure if what I don't like about the final print is the negative, or whether something about the print process is mudying the print. Given my set up, I don't have a way of developing in trays and comparing the results with what I'm getting from the Uniroller. I AM SO CONFUSED!!! Is there a rule of thumb for print development time with a Uniroller? Should I try working with the multigrad developer in a more diluted form (ilford suggests 1:14 as an alternative to 1:9)? And does anywone know where I can find information about using a Uniroller for B&W processing on the web? Thanks! --Phil I am never comfortable with reducing development time to compensate for overexposure of paper. I use a tray, but I develop to completion, meaning until no more image comes up. There is some leeway between that point and the point at which fogging begins if exposure is correct. Ordinarilly, 2 minutes are sufficient, 1 minute is not enough. Higher concentration will decrease the time. More vigorous agitation will have less effect. I do not see how you could get pure black without a very long developing time unless the exposure was too long. If that is the case, less development will not give the best print. |
#3
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Adjust B&W paper development time when using Uniroller?
"Patrick Gainer" wrote in message ... Phil Glaser wrote: Hi, For the first time this evening I developed a B&W print in my Uniroller drum on a motorized Uniroller base. I am using Ilford Multigrade IV RC "Deluxe" with Ilford Multigrade developer. Having never used a Uniroller before (and being unable to find directions for B&W print processing with it on the web), I just followed the paper's instructions for dish developing, using a dilution of 1:9 for one minute. This first print was a series of test exposures starting with 2 seconds at f/11. Now I realize that agitation and development time do not affect paper in the same way as they do film, and that saying 2 seconds at f/11 is completely relative to the density of the negative. Nonetheless, I was rather shocked to find that the the print came out absolutely completely black -- absolutely nothing came through, not even a hint of that 2 second exposure. So I experimented with the development time for the uniroller, and found that if I developed for only 20 seconds with constant drum agitation, I got relatively more of normal image (normal given that I was still over exposing the print by two stops -- see below). Now this is all very disorienting to me (I feel as dizzy as I myself were spinning in that drum!). I mean, it seems like I eventually got an ok print when developing it for 20 seconds (the final exposure time for this particular print turned out to be two stops less than where I started, half the time, and down from f/11 to f/16). But I'm working with a questionable negative, and am unsure if what I don't like about the final print is the negative, or whether something about the print process is mudying the print. Given my set up, I don't have a way of developing in trays and comparing the results with what I'm getting from the Uniroller. I AM SO CONFUSED!!! Is there a rule of thumb for print development time with a Uniroller? Should I try working with the multigrad developer in a more diluted form (ilford suggests 1:14 as an alternative to 1:9)? And does anywone know where I can find information about using a Uniroller for B&W processing on the web? Thanks! --Phil I am never comfortable with reducing development time to compensate for overexposure of paper. I use a tray, but I develop to completion, meaning until no more image comes up. There is some leeway between that point and the point at which fogging begins if exposure is correct. Ordinarilly, 2 minutes are sufficient, 1 minute is not enough. Higher concentration will decrease the time. More vigorous agitation will have less effect. I do not see how you could get pure black without a very long developing time unless the exposure was too long. If that is the case, less development will not give the best print. Those are really out of the ordinary times. Could you, by chance, have an extra pright bulb in your enlarger? Is your negative REALLY thin? Could you have reversed the directions for diluting the developer so that you mixed 9 parts of developer with one part water instead of the other way around? Could your paper be fogged (are the white borders really white?) Charles Portland Or |
#4
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Adjust B&W paper development time when using Uniroller?
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#5
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Adjust B&W paper development time when using Uniroller?
Patrick Gainer wrote in message
Ordinarilly, 2 minutes are sufficient, 1 minute is not enough. Higher concentration will decrease the time. The instructions for my paper, Ilford Multigrade IV RC Deluxe, say that with Multigrade developer diluted 1:9, 1 minute is the recommended time. Are you suggesting that these instructions are wrong (it would clearly not be the first time a photographic material manufcaturer's instructions were wrong . . . ) --Phil |
#6
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Adjust B&W paper development time when using Uniroller?
"Phil Glaser" wrote in message
om... Patrick Gainer wrote in message Ordinarilly, 2 minutes are sufficient, 1 minute is not enough. Higher concentration will decrease the time. The instructions for my paper, Ilford Multigrade IV RC Deluxe, say that with Multigrade developer diluted 1:9, 1 minute is the recommended time. Are you suggesting that these instructions are wrong (it would clearly not be the first time a photographic material manufcaturer's instructions were wrong . . . ) --Phil The Ilford Multigrade is a fast developer, so as mentioned by ilford, 1 minute should be enough. I do prefer slower developers and developing times around 2' (and development to completion, shortening developer time is a good way to obtain greyish blacks). I too suspect a strong overexposure or fogging. Regards, -- Claudio Bonavolta http://www.bonavolta.ch |
#7
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Adjust B&W paper development time when using Uniroller?
"Michael Scarpitti" wrote in message
om... My question is why bother using a drum for B&W paper? Trays are actually easier and faster, as you do not have to load a tray! I do it for large print sizes because I do have the drum to accept 50x60cm but my larger trays are 30x40cm. Another advantage is that you don't need lots of chemistry, a liter is more than enough. Regards, -- Claudio Bonavolta http://www.bonavolta.ch |
#8
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Adjust B&W paper development time when using Uniroller?
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#9
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Adjust B&W paper development time when using Uniroller?
"Phil Glaser"
Ordinarilly, 2 minutes are sufficient, 1 minute is not enough. Higher concentration will decrease the time. The instructions for my paper, Ilford Multigrade IV RC Deluxe, say that with Multigrade developer diluted 1:9, 1 minute is the recommended time. ("What's a mother to do?" -- US TV advert) Paper developing times vary with the paper. Some 'Rapid' types do their thing in 30 Sec., with the inclusion of developer in the emulsion. RC's look ok to me at 1 minute, TTTT. I always give fiber base 2 minutes, the blacks just look better (or so I convince myself). Some photographer's prefer 4 minutes. And that's all with Dektol/D-72. Experiment, see if you can see a difference at one and two minutes. If you can't, then don't waste the time. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
#10
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Adjust B&W paper development time when using Uniroller?
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