Digital BW, The Print

I believe what Steve/Blizzie is referring to is the common practice 
of changing first from RGB to Lab mode, and selecting only the 
Lightness channel, eliminating the other two channels, and then 
changing mode to grayscale mode, as a method of "converting" to b/w.

Another answer to this question might be:

No, Steve, it does not matter what method you use to convert to 
monochrome. Use whatever works best for you. However, you will need 
to "convert" again (as a final step) to the QTR print space, i.e., 
QTR gray matte, etc. just prior to printing via QTR.

Hope that helps,

Jeff
http://pbase.com/k2kv



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@b...> wrote:
> They are not using it to convert to monochrome.  Rather they are 
using it as
> their monochrome workspace and then using perceptual rendering to 
convert
> their B&W document from their workspace to their relevant print 
space.  You
> are still missing the last valuable step.
> 
> 
> > From: Steve <blizzie12@y...>
> > Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Date: Mon, 04 Apr 2005 01:02:53 -0000
> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Subject: [Digital BW] Conversion to Greyscale Methods
> > 
> > 
> > 
> > From what I've been reading, a lot of people in this forum using 
the
> > QTR software use the Lab-to-grayscale method in PS to convert 
their
> > images to monochrome. Is this method suggested when using the 
QTR?
> > I only ask because I never use that method, instead I use Petteri
> > Sulonen's (black & white negative with tonal controls)
> > 
> > 
http://194.100.88.243/petteri/pont/How_to/n_Digital_BW/a_Digital_Blac
k_
> > and_White.html
> > 
> > So by the time I get my image into the QTRgui, it's pretty much 
where
> > I want to be. 
> > 
> > Does my method of monochrome conversion create limitations?
> >