Digital BW, The Print

This is a different issue.  You have your shadows compressed.  With QTR, the
Linearize function will take care of this for you. I am assuming you got
this result with Epson Adv B&W else you would correct it with Linearize
before doing the profile.  If I am right then the issue is as the Epson
driver puts more ink down in the shadows you don't get an increase in
density causing this blocking up.  Personally, given the best of these
numbers is not very good I would not use the paper.  If you really want to
use the paper then you need to find a way to reduce the ink load being put
down by the Epson driver.  Make sense?


> From: wwodets <odets@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Tue, 18 Oct 2005 15:43:45 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] Carl and Steve:   ICC v. Transfer Function in Epson
> driver
> 
> Carl and Steve: 
> 
> This is exactly the problem I mentioned in an earlier post about
> profiling the Arches Smooth paper.  The Lab values were linear up to
> a 90% gray.  After that (for the 92, 94, 96, 98 and 100% gray) LAB
> values read: 19.39, 19.06, 18.70, 18.95, 19.39.  Rather than
> correcting this nonlinearity, Create ICC produced an unusable profile
> with a full scale, retangular spike between LAB 0 and LAB 8 (e.g. LAB
> 5 was "corrected" to LAB 98).  So this supports Carl's description of
> function (and, I think, reduces the utility of the program).
> 
> The abnormailty in this case was produced, I think, by the way the
> ink sits on the Arches coating: way too wet.
> 
> Walt