Digital BW, The Print

I agree with this.  You can go mad or blind or both trying to use 
the graybalancer with just the naked eye.  Perhaps some with more 
experience in judging subtle colour shifts would find it easier than 
I.

But because the Epson driver tries to print a neutral tone by mixing 
the colours, you will get different results depending on what light 
you use to compare the graybalancer output against the control 
strips.  And that calibration will only be correct for prints viewed 
in that light.  Because you are mixing colours to get gray, 
metamerism of the Epson UC inks will mean that this supposedly 
neutral print will have a colour cast in other light.

AFAIUI, QTR takes a different approach.  It achieves a neutral tone 
by trying to colour adjust the typically warm tone of Epson black 
and gray inks.  I'm a little less clear about how it does light 
tones neutrally.

F_P


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "esasinkkonen" 
<esa.sinkkonen@1...> wrote:
> 
> 
> 
> Agreed
> To me, the only ways to get metamerism-free B&W are printing with
> only black ink or with a RIP (I use QTR, but there are others).
> I experimented with Gray Balancer and got improvement with a 
certain
> constant light but felt that I went backwards in an other 
lightning.
> Not worth the troube.
> Cheers Esa
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
> <stevekale@b...> wrote:
> > A waste of time.  Don't bother touching it.  Dropped from 
> subsequent
> > products.
> > 
> > 
> > > From: frankg_photo <fh.gross@s...>
> > > Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > > Date: Mon, 13 Dec 2004 22:13:33 -0000
> > > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > > Subject: [Digital BW] Epson Gray Balancer
> > > 
> > > 
> > > 
> > > can anyone comment on the status and use of this product for 
B&W 
> on a
> > > 2200
> > > see review here
> > > http://www.luminous-landscape.com/reviews/printers/gray-
> balancer.shtml