Digital BW, The Print

I too am surprised the yellow didn't reduce the change in the a* readings.
I thought that might have been why they put it there.

Paul
www.PaulRoark.com 


> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Steve
> Kale
> Sent: Tuesday, August 16, 2005 4:17 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] Fade test -- 4800 v. UT7, MIS old v. new, &
> Kirkland
> 
> I know that there is a lot "concern" out there re the use of yellow ink by
> the Epson Adv B&W driver.  If the yellow ink were a real issue, I would
> have
> expected a greater difference in hue shift between the K3 results and the
> UT7 results, particularly in the b axis.  Thoughts?
> 
> 
> > From: Steve Kale <stevekale@btinternet.com>
> 
> >
> > Interesting that the colour shift is extremely close - really only the
> > luminance figures have anything close to a meaningful difference.  Am I
> > reading your numbers correctly?  Where you have a positive change in L*
> is
> > that a fall in L* or increase?  I would also suggest that the
> differences in
> > L* are trivial.  For example, a change of 0.67 of a base of around 53.55
> is
> > a mere 0.012 in density.  It is, however, very comforting to know that
> the
> > UT7 and Epson K3 inks are in the same league.  This should give UT7
> > purchases a lot of assurance with respect to the relative endurance of
> their
> > ink.
> >
> 
> 
> 
> 
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