Digital BW, The Print

Austin, I'm not sure why you are focussing on halftoning with black ink
only, when it seems obvious that the tests were done with two different quad
systems (piezo and MIS VM).  Given that, I don't see what you are adding to
the discussion here.  Others have pointed out that a better comparison of
the two systems would include line pairs of varying densities (and now that
Paul has done a test w/ black on white, perhaps others can do some tests
with gray on gray and black on gray etc.)

From what I understand from your posts, it seems that you may be calling for
the same thing; if so, I suggest you say so, if not, then why don't you
propose another test that might clarify things.

Bill Morse
PhotoProspect
Cambridge, MA 


on 10/10/01 8:02 PM, Austin Franklin wrote:

...The context was halftone...not just black ink.

The fact is, when halftoning with the Epson driver and only one ink, it
takes up 16x more space to produce the same tones...given that, it would
only make sense that it has to limit the input resolution WHEN DOING
DITHERING/HALFTONING.

> Having looked at a number of identical images that I've printed with both
> the Piezo and Epson drivers, I must say in most cases I cannot see any
> sharpness difference, even with a magnifier.

IMAGES?  As in, grayscale or black/white (typically called lineart) only?
Printed with quad tone inks and the Epson driver, or just the black ink?





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