Re: [PPLetterpress] Re: Instant Stochastic Screens
- View SourceIn Offset you print with dots and they can overlap to create a color,
letterpress inks are usually heavier pigmented. I've just made a proof
over the weekend with a colour separated image, 4 plates, 200
line-screen rip stochastic. The Film was output on a creo image-setter,
regular Film is about 18 per sheet for a set of 4 in 12 x 14 . this set
was 108 and a fedex shipping charge at total 14.12.
as we printed on a Vandercook sp. 20 on Rives 88.
Setup was with Bacher Micro registration quoins and that allows me
nicely to register the 4 plates.
As being a stunning sheet in itself, it is different from offset as the
pigment is less translucent and the paper not coated. The sheets went
to a silkscreener to finish up.
It doesn't have the depth of offset and the Image looks more flat like
I would see it in offset.
There is potential here and it invites to explore.
But I don't mind mixing techniques to create each in their own instead
of trying to imitate.
As I get my digital back or can access a scanner here, i post a link.
On Monday, May 12, 2003, at 06:12 US/Pacific, Katie Harper wrote:
> Thanks for the example, Steve, and to others who have chimed in on this
> subject. I should clarify:
> My original inquiry about stochastic screening had to do with four
> work, and the possibilities for making it better on letterpress. The
> listed about using filters in Photoshop, etc., show great potential for
> special effects (ie, imitating aquatint or mezzotint or graininess in
> film) but are not what I was looking for.
> The results I have seen in offset rival the finest halftones, and I was
> hoping that we letterpress printers might be able to utilize this
> but it could well be that a true stochastic screen is something that
> requires the technology of offset to work.
> Katie Harper
> on 5/12/03 2:31 AM, Steve Jackman at santaj672@... wrote:
> >> InkPotJim@a... wrote:
> >> It's just a matter of randomness vs. order / frequency / angle,
> >> right?. Nothing more, nothing less (without getting too
> >> technical).
> >> Well, photoshop can do that ...
> > Thanks Jim, for finally getting to what I think was probably the
> > meat of Katie's original question! A letterpress printer isn't that
> > concerned with how difficult and expensive it is to produce a fine
> > line stochastic screen for offset. Rather, we want to know how to
> > produce better detail than a standard halftone screen from a low
> > (relative to offset) lpi screen.
> > For anyone who's interested, I generated an example using
> > Jim's technique at 72 dpi and posted it at:
> > http://home.southwind.net/~raingrdn/
> > The detail is certainly impressive, considering what a standard
> > halftone at that dot pitch would look like.
> > Regards and a tip of the stochastic hat to Jim,
> > Steve
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> Katie Harper
> Ars Brevis Press
> Cincinnati, OH
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