Digital BW, The Print

Paul,

What spray are you using on you prints.  With MIS ink I assume.

Thanks
M Stratton


On May 25, 2005, at 11:39 AM, Paul Roark wrote:

> Dave,
>
>  I think the best example that shows that the surface reflective
>  characteristics are the main differences between matte and glossy 
> papers
>  with respect to dmax is that an Arches Hot Press, un-coated print 
> jumps from
>  about 1.5 to 2.5 with multiple coats of, for example, acrylic, 
> applied to
>  its surface to give it a gloss.
>
>  The spectrophotometers we use for measuring dmax use nearly perfect 
> lighting
>  that avoids the problems of reflections.� This gives the glossy 
> papers a
>  huge advantage.�
>
>  In the real world, a matte print sitting on my desk top appears to 
> have a
>  better dmax than a gloss print because the glossy print dmax is wiped 
> out by
>  reflections.� That is, the nature of the lighting is what makes all 
> the
>  difference.� If the display conditions are perfect, the glossy prints 
> are
>  terrific.� If the lighting is bad, like a window behind the viewer, 
> matte
>  wins.�
>
>  Of course, if one puts glass over matte, you may end up with the 
> worst of
>  both worlds.� So, my favorite is a sprayed Semimatte with no glass.� 
> But, I
>  think both types of prints are important, and being able to print 
> either
>  matte or glossy is a critical part of any inkset I mix.
>
>  Paul
>  www.PaulRoark.com
>
>
>  > -----Original Message-----
>  > From: DigitalBlackandWhiteThePrint@yahoogroups.com
>  > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of
>  > davelongviews
>  > Sent: Wednesday, May 25, 2005 7:29 AM
>  > To: DigitalBlackandWhiteThePrint@yahoogroups.com
>  > Subject: [Digital BW] Matte versus glossy dmax: a matter of physics?
>  >
>  > There has been a lot of discussion over extended periods on the 
> group
>  > regarding matte
>  > and glossy dmax. Is it true that light SCATTERED at the paper 
> surface is
>  > what gives a matte
>  > surface its look, and that very same scattering is what reduces 
> dmax? And
>  > with a glossy
>  > paper less light is scattered, more is REFLECTED, dmax is greater, 
> and you
>  > have the
>  > glossyness to deal with. In other words isn't it true that you 
> can't have
>  > a matte surface with
>  > a truely large dmax? Aren't paper surface/glossiness and dmax 
> directly
>  > related in a way we
>  > wish they weren't? Is it physically possible to separate the two? 
> Any
>  > thoughts?
>  >
>  > Dave
>  >
>  >
>  >
>  >
>  >
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Margaret Stratton
Obermann Center Research Scholar
Professor of Art
Department of Art and Art History
Iowa City, IA  52245
www.margaretstratton.com


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