Digital BW, The Print

At 04:04 PM 5/4/2002 -0700, you wrote:
>
>AZinn@... wrote:
>
>>>...
>
>>>In the Piezography manual it says: "Although images print with
>>>clarity at 240dpi, there will be a remarkable increase in detail if
>>>you can obtain your images at 720 dpi and higher."  ...
>
>C. David Tobie wrote:
>
>>...
>>The dpi in the Cone Driver is significantly higher than that of the
>>Epson drivers ... allowing files of high resolution to produce even
>>finer results. ...
>
>My resolution tests sure do not show an advantage to the Piezo driver with
>respect to the detail that can be printed.  See the scan of test prints that
>had high resolution line pairs.  The image file name is "Piezo-Epson
>Resolution Test.jpg."
>
>Go to the Files section of this forum at
>
>http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
>
>Then follow the path to Message Related Files > 10_2001 uploads.
>
>The bottom line is that in this test the Epson driver seems to have a bit of
>an advantage in rendering sharp fine detail.  I tried this same test with
>50% gray bars instead of 100% black, and it produced the same results.
>
>I think the Piezo image quality advantage is limited to smoothness on older
>quad printers.  Of course, there can be other factors at well.  The Piezo
>driver seems more susceptible to microbanding, but the Epson driver needs
>workflows and image adjustment curves that may be sensitive to differences
>in printers and platforms.
>
>I have the Piezo driver but prefer to use the Epson driver for most prints.
>I don't see any significant image quality differences even on the 3000 in my
>16x20 display prints.  The Tmax 100 grain is the limiting factor, not the
>Epson driver dots (with a proper partitioning workflow).
>
>Don't get me wrong, I think the Piezo driver has some real advantages for
>some things (paper profiles, for example) and some people (beginners who
>need plug & play).  But I've always had a problem with some of the
>"over-the-top" representations and implications that have been made for that
>system.
>
>Paul
>http://www.PaulRoark.com
>
>

Paul,

I still don't understand where the 240dpi figure comes from. I could swear
that I read it was some bottom parameter to do with either the way the Epson
handles data or some darn thing.

thanks,

AZ
Maker of Lookaround panoramic camera.
http://www.panoramacamera.us
         or
keyword.com lookaround