Digital BW, The Print

What are the best settings for the Spectrocam and what reading are you using to determine dmax? 
Mine is set to observer 2 degree, illuminant D50, density status I, absolute checked (in CIE Data Window). 
Which do you read:
Density values (C,M,Y,Vis)
L,a,b,C
hue
u,v
Thank you very much. I have always wondered which reading actually is giving the dmax.

----- Original Message ----- 
From: "Paul D. DeRocco" <pderocco@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Wednesday, January 28, 2004 12:17 AM
Subject: RE: [Digital BW] 21-Step Wedge printing


> From: nextxixar [mailto:nextxixar@...]
>
> I'm going to measure Dmax for my papers using 21-Step Wedge image
> file of Paul
> Roark. (with Spectrocam and Spectrocam 1.7.2 for Mac OS X)
>
> I want to know setting of print panel for printing 21-step Wedge
> image file.
>
> ==============
> Source Space: Document Space
> Print Space: Same As Source
>
> Advanced Setting, 1440 or 2880 dpi, etc.
> No Color Adjustment
> ==============
>
> Is this right?

That'll do it. Of course, you don't need the whole wedge just to find the
Dmax. But it's worth knowing if the paper/ink/driver combo clips at the low
end--often, you find the last few patches are nailed to black. I suppose
it's even possible that 100% will be less dense than 95%, because of the way
the driver mixes colors with the black.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...