U of S | Mailing List Archive | alt-photo-process-l | Re: finer aquatint screen revisited

Re: finer aquatint screen revisited

Tests this weekend showed better highlights.  I'm still tweaking the curve the old fashioned way this time (hunt and peck), which should produce better defined tones and distribution.

This summer I'm planning to dive into PDN and start deriving compensation curves that way.  Susan's results were most encouraging and proved to me it's as relevant to the polymer plate process as any, just as Chris predicted.  :-)


Ender100@aol.com wrote:
Hi Jon,

Be interesting to see what happens with your new screen—if it lays down more or less ink.

Best Wishes,
Mark Nelson

Precision Digital Negatives - The System
PDNPrint Forum at Yahoo Groups

In a message dated 4/23/07 4:57:55 PM, jon@terabear.com writes:

Good question Mark.  I noticed that 1200 dpi screens I had tested from Copy Graphics did tend to result in darker, more contrasty images than the 1800.  Still better than the "standard issue" aquatint screens people generally use for this process, but not as good as the 1800 dpi. Never tried changing the 80% part though...until recently.  I asked the service bureau to tweak my recent 2540 dpi screen to be at 82% since, for whatever reason, the 80% density screen output from their imagesetter was resulting in slightly darker prints than my baseline standard screen.  Whites needed a little more pop.  I'm concerned this will change when they go to fresh chemistry, but we'll see. 

I could have augmented my standard exposure times I suppose, but instead augmented the density of the screen a smidgen.


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