Dwayne Martin
Member
Anyone using a RS Design Analyzer for lith printing? I am because thats what I have. It does the job with a couple work arounds.
Measuring normal exposure with it is definitely the best part for sure. The problem is you have to trick it to give you only green light. Even at 00 filtration it tries to give you a portion of exposure time in blue high contract light. Is there a setting to make it use green light only? Some mode I can’t find? Mine is the dedicated Ilford 500 version…I used to before I acquired a Heiland Splitgrade system. If i remember correctly one can easily measure a negative and add 2 stops in the Analyzer. additional burns or dodges can be done in parts of F-stops.
All of the Masters claim that filtration does nothing for a lith print. Thats why I was trying for green only. I suppose I could give the green then blue approach a try. Not sure about the normal version of the analyzer but the dedicated ilford 500 version doesn't mix the light, instead it uses all green then all blue for different periods of time to suit the grade and individual paper.Why only green light? Ijust used the combination of suggested hard and soft light increased by 2 steps. As you are doing it you expose every negative at grade 0 instead 0f 2-3. I would think that would affect the final results. My Splitgrade has a white light mode that I now use most of the time.
That's not how I have read what the 'Masters' I'm familiar with wrote. AFAIK they postulate that with lith printing, you control contrast through exposure-development and not through regular multigrade approaches. That does NOT mean that light filtration doesn't matter. It does, I can assure you.All of the Masters claim that filtration does nothing for a lith print.
That's not how I have read what the 'Masters' I'm familiar with wrote. AFAIK they postulate that with lith printing, you control contrast through exposure-development and not through regular multigrade approaches. That does NOT mean that light filtration doesn't matter. It does, I can assure you.
I would never use pure blue or pure green light for lith printing. Stick with a bit of both. It gets you more or less in the middle of the paper's curve, uses both/all of the emulsions present and reduces the exposure times necessary.
That's *very* odd indeed. White light is generally between grade 1.5 and 2.5 depending on paper (usually 2-2.5). Grade 0 is *always* more or less pure green - or at least green with so little blue in it that you wouldn't notice it.I used 0 which in the case of the 400 system is white light only.
Could be; I never used the analyzer. All I know is that if you throw only pure green light at VC paper, you get really low contrast and most papers will never be able to create full black. You actually need to add in a tiny amount of blue in order to get a usable result. You could think of pure green light as a kind of grade "0000" for papers - not a grade that will actually work (well), but it's sort of theoretically there.I now realize the Analyzer always gives you some green and some blue to get grade 00
Oh, I believe you alright. It's just a slightly odd way of working.I can promise you you can get gorgeous prints this way.
You’re right grade 0 gave me yellow light not white.The 0 setting on my Multigrade 400 controller resulted in the head giving me lots of yellow and no apparent magenta.
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