RE: Tri-Curious Seeks Other Tri-Quad Curious Gummists
Hi Michael, I don't have considerable experience with both gum printing and color separation / pre-press but another option could be: 1) Pick the paints you're going to use for color separations. 2) Do your PDN (or other system) tests with those colors and design the curves you're going to use with your negatives. 3) Define the same colors in Photoshop (not sure about the place -> Custom CMYK? I don't have Photoshop installed in the computer I use at work) 4) Design the necessary color separation curves by Trial and Error in Custom CMYK profile (again, I'm not completely sure about where this option is placed inside the program). Should be relatively easy than trying to calibrate by printing since you'll see the results instantly by Soft-Proofing... 5) Print your negatives by making color separations using the Custom CMYK profile that you designed in step 4 + the process curves you designed in step 2. Sorry for not being able clear with details but you got the idea... Any comments? Regards, Loris. -----Original Message----- From: Michael Koch-Schulte [mailto:mkochsch@shaw.ca] Sent: Monday, January 29, 2007 7:05 AM To: alt-photo-process-l@usask.ca Subject: Re: Tri-Curious Seeks Other Tri-Quad Curious Gummists Thanks Chris, I'll distill that down to: - Trial and Error - Experience - Proper curves (or neg's) = >Then vary the pigment saturation for balancing. (Ah ha! But does that not change the curve? Not enough to matter?) - "Imbalanced" great word, the correct word, you'd kill me in Scrabble (not hard to do BTW). - Some colours just fit together...(R= PR209 Y= Raw Sienna)...ok...experience - Try printing another layer (balance layer) and see how it looks - Don't Print yellow under tungsten light, especially if you've been drinking and/or eating dichromate sausages ...you'll start to see clowns...bright yellow clowns.... - More Trial and Error and More Experience...I'm fine with that. ...
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