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#21
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Reformed Pyro Workers
Dennis O'Connor wrote: "Patrick Gainer" wrote in message Dennis, Where do you find a paper that has a reflection density range greater than 2.1? Cramming a 10 stop scene range into a 7 or even 8 stop paper range has to lose one end or the other or to cause overall drabness. Yup, gawd's truth... I did carelessly use the term '10 stops' on the print when I mean't zones/steps... My bad... there I said the z word, may lightning strike me down Now, tell me something I don't know; like how to get more stops on the paper while retaining an adequate density difference between the steps to avoid mud... Most natural scenes that have such brightness range are double scenes, like windows where you want to show interior and exterior detail as the eye sees it. Painters do that. Photographers have to realize that they must do that in the darkroom by dodging, burning, bleaching and any other trick they can muster. It is not likely that a straight print of a wide range scene will have the "life" you yearn for. Exactly the lament of our recently reformed pyro worker in his original post... I was merely trying to point a way out of the wilderness.. denny The ten zones as seen by the originators of the Zone System ARE 10 f-stops of scene brightness range. You cannot get those ten zones on paper without compressing them into 7 or at most 8. When you do, the print looks lifeless. My biggest complaint about your analysis of the effect of pyro, which I did not mention before, is that it is wrong, if I read it correctly. The stain image is not a contrast reducing mask, even on VC paper, although it increases contrast less there than on graded paper. If you bleach the silver image out of a pyro negative, you are left with a negative stain image which will print on VC paper without a filter as a weak positive. If you use a blue color separation filter, a pretty good print may result, depending somewhat on the film's staining ability. The image you see when you print a pyro negative on VC paper without a filter is the sum of the silver image and the sytain image. A different experiment is to develop a negative to low contrast, print it, then bleach it in sepia toner bleach and redevelop it in a staining developer. All you need for this redeveloper is 1/4 teaspoon of hydroquinone and 1 teaspoon of sodium carbonate in a pint of water. Develop to completion in room light. This will add a yellow-ish stain to the silver image. Now print this negative under the same conditions as before and you will see that the contrast has been increased whether you use graded or VC paper. Yes, hydroquinone is a staining developing agent. |
#22
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Reformed Pyro Workers
Hmmm, that's new information to me, though I have to admit I am not much
into alchemy and do not avidly follow alternative processes... denny "Patrick Gainer" wrote in message A different experiment is to develop a negative to low contrast, print it, then bleach it in sepia toner bleach and redevelop it in a staining developer. All you need for this redeveloper is 1/4 teaspoon of hydroquinone and 1 teaspoon of sodium carbonate in a pint of water. Develop to completion in room light. This will add a yellow-ish stain to the silver image. Now print this negative under the same conditions as before and you will see that the contrast has been increased whether you use graded or VC paper. Yes, hydroquinone is a staining developing agent. |
#23
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Reformed Pyro Workers
Grad filters will help, though a bit difficult with windowed interiors...
Fill flash is problematic with the Sierras, Grand Canyon, etc... The Baltimore mag link is broken... denny "Gregory W Blank" wrote in message ... In article , "Dennis O'Connor" wrote: "Patrick Gainer" wrote in message Dennis, Where do you find a paper that has a reflection density range greater than 2.1? Cramming a 10 stop scene range into a 7 or even 8 stop paper range has to lose one end or the other or to cause overall drabness. Yup, gawd's truth... I did carelessly use the term '10 stops' on the print when I mean't zones/steps... My bad... there I said the z word, may lightning strike me down Now, tell me something I don't know; like how to get more stops on the paper while retaining an adequate density difference between the steps to avoid mud... Nuetral Density grad filters or fill flash, or a combination of the two. Have to do this as I, like Patrick states shoot transparencies for interiors Check www.baltimoremagazine.com the Hippodrome article this months issue. I used 4 minute exposures on Provia, counting the seconds outloud, for the feature spread. -- LF website http://members.bellatlantic.net/~gblank See VC & Camera Arts Magazines for outstanding imagery at www.viewcamera.com or www.cameraarts.com |
#24
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Reformed Pyro Workers
This works:
http://www.baltimoremagazine.net/monthly/default.htm denny "Gregory W Blank" wrote in Check www.baltimoremagazine.com the Hippodrome article this months issue. I used 4 minute exposures on Provia, counting the seconds outloud, for the feature spread. -- LF website http://members.bellatlantic.net/~gblank See VC & Camera Arts Magazines for outstanding imagery at www.viewcamera.com or www.cameraarts.com |
#25
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Reformed Pyro Workers
I assume you shot LF then scanned the transparencies?
denny "Gregory W Blank" wrote in |
#26
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Reformed Pyro Workers
In article ,
"Dennis O'Connor" wrote: I assume you shot LF then scanned the transparencies? denny "Gregory W Blank" wrote in I just shoot, they scan on a high end machine. -- LF website http://members.bellatlantic.net/~gblank |
#27
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Reformed Pyro Workers
"Dennis O'Connor" wrote in message ...
Exactly the lament of our recently reformed pyro worker in his original post... I was merely trying to point a way out of the wilderness.. denny Denny Sorry not to get back sooner. I was busy tearing my hair out over some PMK's that decided to go contrastier than hell. Your description of pyro is pretty much why I like the stuff. Prints appear more atmospheric when the tones are closer together, although yes, it's walking a thin wire and easy to fall into mud. The PMK's I can't explain. I must have doubled the B solution or some such. I posted that my initial problem however was resolved by finding that I doubled up my printing filters by mistake. Freud said it was an unresolved security issue, in another newsgroup. Its a few posts back, maybe out of sequence.Those 8x10's are very smooth in some strong light, and have as nice a contrast/clarity level as I could hope for. I think D-76 would have made them too hard. And a heavily diluted HC-110 would have left them much duller than this pyrocat stuff. I nominate Sandy King for Sainthood. Moving the shadows is true. And also true is that the revival of pyro was due to the reaction of variable contrast papers to the colored stain acting as a contrast filter to those pesky highlights. I'm not shooting double scenes. Just trying to get a zone 3 shadow and some density in the sky, instead of a white out. It's also nice when the snow and ice doesn't fly off into a dozen different densities and require impossible burning to get the lumpishness smoothed out and looking natural again. As I said, I prefer an atmospheric look to a graphic one. The trick is to get it while retaining enough local contrast for good readability. Details in paticular, but also that overall upbeat brightness that gives the feeling that the light is coming from the print, instead of sucking it in. .. I would guess that's why some folks are even resorting to stand dev., as they want both the longest tones, but need the tonal seperation of edge effects. And the main reason, I think, why some people don't like the pyro is because they simply dig the brilliant whites that standard developers deliver. Sound right? I think that the best compromise, so far, is finely tuned pyro, not only for VC, but also the Azo. I was hoping to hear more about why aesthetically some people turned away from pyro with this thread, without the step tablet explainations...not that theres anything wrong with that. But it's always fun to hear what others like in their work. The pyrocat I'm using these days has done great gobs of good work, and there really are only a few occasions where I wish I had another sheet of the scene to dip into D-76. Thanks for your time Ken Smith ( just me and my cat ) Wyoming |
#28
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Reformed Pyro Workers
OK Ken... Glad to hear the problems are solved... In the interim, Patrick
pointed out gently that I went off into the weeds and had my foot firmly wedged in my mouth during my soliloquy on pyro and band aids... {denny, oh denny, wherefore art thou?} {{over here in the weeds picking grit from between my teeth, juliet!}} Well, I hate being wrong, and besides physics is physics so he can't be right... so, I went and did some actual reading on pyro doh... As usual, he is right and I was wrong, physics or no physics... The pyro stain is not bound to the gelatin, as I reasoned, so my reasoning went off into the weeds... And the density is variably proportional to the density of silver, thus mimicking color coupled dye films... Plus the stains act like paper grade filters... jeezzzz Actually, the pyro looks interesting... Durn it, there you go again Patrick, leading me astray, beckoning me to muck about with bottles and trays of elusive, intangible and unclassifiable noxious chemicals... And you bear some responsibility here too, Ken, so wipe that smirk off... cheers denny - worthless lab rat who used to be a gawd like PHOTOGRAPHER! "Ken Smith" wrote in message The pyrocat I'm using these days has done great gobs of good work, and there really are only a few occasions where I wish I had another sheet of the scene to dip into D-76. Thanks for your time Ken Smith ( just me and my cat ) Wyoming |
#29
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Reformed Pyro Workers
In article ,
"Dennis O'Connor" wrote: OK Ken... Glad to hear the problems are solved... In the interim, Patrick pointed out gently that I went off into the weeds and had my foot firmly wedged in my mouth during my soliloquy on pyro and band aids... {denny, oh denny, wherefore art thou?} {{over here in the weeds picking grit from between my teeth, juliet!}} Well, I hate being wrong, and besides physics is physics so he can't be right... so, I went and did some actual reading on pyro doh... As usual, he is right and I was wrong, physics or no physics... The pyro stain is not bound to the gelatin, as I reasoned, so my reasoning went off into the weeds... And the density is variably proportional to the density of silver, thus mimicking color coupled dye films... Plus the stains act like paper grade filters... jeezzzz Actually, the pyro looks interesting... Durn it, there you go again Patrick, leading me astray, beckoning me to muck about with bottles and trays of elusive, intangible and unclassifiable noxious chemicals... And you bear some responsibility here too, Ken, so wipe that smirk off... cheers denny - worthless lab rat who used to be a gawd like PHOTOGRAPHER! Mr Gainer has alot of respect from my corner I guess becuase at one point I wanted to be a chemist. Without reading that before hand I would have stated the same regarding the stain becauzzzze if you run a sheet of film without exposure and process it in pyro there is still stain,...even though the "emulsion is long since soaked away. -- LF website http://members.bellatlantic.net/~gblank |
#30
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Reformed Pyro Workers
Patrick Gainer wrote in message
My biggest complaint about your analysis of the effect of pyro, which I did not mention before, is that it is wrong, if I read it correctly. The stain image is not a contrast reducing mask, even on VC paper, Oh, it figures, now I'm wrong about this too. Is there nothing I can know technically about my own craft!!! I'm just going to shut up and make my friggin pictures from now on. I promise. Farewell cruel newsgroup. Ken Smith Still in Wyoming |
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