Richard Kenward wrote:
I am interested in knowing the stochastic screening system your printer is using. My understanding is that flat colours for example could be a problem, leading to some printers using a combination of FM and AM on pages where this was a difficulty. Examples using the Creo Staccato process and 10 micron dots show none of the these problems, and flesh tones and smooth gradients are fine.
Interesting project and I am particularly interested in the proofing solutions!
Both printers we've worked with using stochastic screening are using the Creo Staccato system. Flat tints, particularly three-color tints have been problematic, as have flesh tones. In the past, the option to mix screening on a single plate was not available to us. The printer we've used for most of the stochastic printing we've run so far is in Vancouver British Columbia (Canada) and is a major beta site for Creo. They are not the same printer on the project we've been discussing - I wish they were) When the problem of mottled tints and fleshtones first appeared, they suggested combined screening techniques, but the client (aka God in this case) didn't want to spend the time in testing. I've heard since that the technique of mixing FM and AM screening works well in these cases. I just don't have any experience to back it up.
I'll let you know about the new proofing option as soon as we see one. It'll be quite a luxury to be able to compare a proof to an actual press sheet before we run.
-- Jeff Smith
Smith/Walker Design and Photography
P. O. Box 58630 Seattle, WA 98138 ph: 206-575-3233 fx: 206-575-3960
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