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developers, contrast and VC paper
do changes in developer affect VC paper contrast at all?
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developers, contrast and VC paper
Joe wrote: do changes in developer affect VC paper contrast at all? To a small degree. |
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developers, contrast and VC paper
Mike King wrote: If you mean two-part developers like Dr. Beers or split development, the answer is probably. Some VC papers are developer incorporated and would exhibit much less difference in contrasts. I have seen a contrast difference using Selectol-soft versus Dektol but wasn't looking to alter contrast only image tone. I thought I read somewhere that they dont affect VC contrast, but I couldnt find the reference so I asked the question. I usually use Forte, which supposedly doesnt have incorporated developers. I was actually thinking of varying levels of HQ, whether that has much effect. More specifically, if it doesnt have much effect, could a person still make a normal or higher than normal contrast image on VC paper using Ansco 130 Adams version, or Ansco 120 (for example). It's a good question, but with the ability to change contrast in very fine gradations built into the paper the question then becomes more like why bother unless you are looking to force contrast at one end of the range or the other. |
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developers, contrast and VC paper
Joe wrote:
Mike King wrote: If you mean two-part developers like Dr. Beers or split development, the answer is probably. I thought I read somewhere that they dont affect VC contrast, I was actually thinking of varying levels of HQ, whether that has much effect. .... using Ansco 130 Adams version, or Ansco 120 ... Pure coincidence. I'm about to test some old VC paper I shelved years ago when I switched to Graded. I've 25 sheet packs of 5 x 7 Kentmere and Forte on their way from Freestyle. I test and proof using 5 x 7. I'll have to dim the lights; VC paper. Ansco 120 and Beer's A are the same developer save for dilution. Beer's A is a metol, sulfite, carbonate, low contrast developer. Beer's B is the hydroquinone portion. It really works; very noticably. I'd be surprised if it did not so with VC paper's as well. I've not worked with 130 but know that Adams' split leaves the HQ to be added as needed. I'll need some glycine for that one. Dan |
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developers, contrast and VC paper
wrote in message ups.com... Joe wrote: Mike King wrote: If you mean two-part developers like Dr. Beers or split development, the answer is probably. I thought I read somewhere that they dont affect VC contrast, I was actually thinking of varying levels of HQ, whether that has much effect. .... using Ansco 130 Adams version, or Ansco 120 ... Pure coincidence. I'm about to test some old VC paper I shelved years ago when I switched to Graded. I've 25 sheet packs of 5 x 7 Kentmere and Forte on their way from Freestyle. I test and proof using 5 x 7. I'll have to dim the lights; VC paper. Ansco 120 and Beer's A are the same developer save for dilution. Beer's A is a metol, sulfite, carbonate, low contrast developer. Beer's B is the hydroquinone portion. It really works; very noticably. I'd be surprised if it did not so with VC paper's as well. I've not worked with 130 but know that Adams' split leaves the HQ to be added as needed. I'll need some glycine for that one. Dan Have you investigated how much difference there is in Dmax? If not much then the developer is truely affecting the contrast. The proof would be to print a step wedge on the test paper and see how many steps show up with various developers. -- --- Richard Knoppow Los Angeles, CA, USA |
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