QTR-Quadtone RIP

I am sorry that I do not monitor this site very often. Piezography has
its own Yahoo Groups; one for desktop users and one for Pro users. I
tried to upload a portion of the test file to this group just now, but
Tiff files are not supported. I will type an instruction at the end of
this message on how to obtain a portion of high resolution type example.

I have not read all the comments. But I gleamed that someone tried to
make a small type file in Photoshop at 360 or 720 dpi and both may not
be much of a challenge. Its not that the resolution is not high
enough, but that Photoshop makes very forgiving type. Its just not
much of a challenge to a print system. The files which we printed in
the demo are not made in Photoshop. It is purely vector art and most
of the type is wrapped around objects and necessarily extremely high
resolution, because so much text is required in the artwork. 

The first project we did was all of the known texts attributed to Ben
Franklin which were wrapped around all of the engraved lines of a $20
bill. The next test was the Alice in Wonderland text.

I think a test like this may not relate to the average user, but it
still demonstrates high resolution. An example of when high resolution
printing is necessary is when a photographer wishes to realize
definition from large format negatives which are drum scanned. 

At Cone Editions we typically drum scan sheet film at 1080dpi. We
never rez up or down and allow the QTR driver with a Piezography
Profiler made set of curves do the printing. Our goal in doing
something like this is to print truly tac sharp at enlargement.

This test will be lost on those who only process digital camera files
or use desktop scanners to scan film. If however, you have 4x5 or
larger film and print 20x24. Then extremely high resolution printing
would definitely benefit you. Especially, if your film is fine grain.
And fair to say, Cone Editions does an extreme amount of printing for
large format film photographers.

If you do not need to print high resolution there are still many
benefits to seven shades of ink versus using only four or the
multi-toning ink sets.

But in any event - I posted a 1/2 inch square file to the inkjetmall
website that you can download if you would like to test it against
your own process, or to try Piezography K7 with it. Just realize that
it will only be a 1/2 square when printed. And yes of course you need
a loupe to read it. That is the intention!  :)

Download at http://www.inkjetmall.com/piezoTypetest_tif.zip

And if you want to get my attention - please post a message for me at
the Piezography Desktop User Group at
http://tech.groups.yahoo.com/group/piezography3000   I usually monitor
that list on a daily basis. However, I will check on this list over
the next few days to see your results of the comparisons to this type
of text.

best regards,

Jon Cone