QTR-Quadtone RIP

Piezography is making on a custom basis, a new type of curve for
Piezography K7 and K6 QTR users. Type 2 curves are intended for
photographers who want a linearization that includes a beefy
bottom-end that more closely assimilates a contrasty display. I still
make regular curves which are straight line from dMin to dMax. The
Type 2 curve is made from measuring a different target than the
regular curve. The resultant curve is used exactly the same as a
regular curve, but it produces a different printed result. 

If you can already differentiate 256 gray levels on your display and
see detail in the RGB 0 - 5 range - a type 2 is definitely not for
you. Can't see differentiations below 10 it could be. Higher than that
its a definite. If you think your Piezography prints are lighter in
the shadows than your display - that is the tell-tale sign. The link
below will show a graph of the two linerizations and should make
visual sense if my explanation does not.

There is an instruction manual and a linearization checker in the
download. You do not have to buy a custom curve to download the manual
and linearization checker. Reading more about it might give you the
understanding if its something you wish to purchase. But, you will
need Excel and a spectro or a densitometer to make use of the
spreadsheet. The spreadsheet will give you an indication of the
quality of your linearization. Should work well with any b&w system
for that matter, as a method to see if you're linear. There is a link
to the download on the description page below. The download also
includes the master curves and the two different targets.

I don't expect everyone to agree with my opinions about calibrating a
display to the contrast of a printing system. This is why I am
offering a Type 2 curve for those who prefer a brighter calibration or
who simply can not attain the quality of calibration required to
preview Piezography as it prints. But, I also go to great lengths to
explain how displays can be (and used to be) calibrated in the manual
in order to get the most out of a regular Piezography curves system.

http://shopping.netsuite.com/s.nl/c.362672/it.A/id.3682/.f?sc=15&category=1238

excuse the cross-posts but Piezography users are scattered in four
different lists.


Thanks,

Jon Cone
InkjetMall.com