Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Kees Brandenburg" 
<ctb@z...> wrote:
> Tim,
> 
> When I started with QTR I did not have a densitometer too. I had great
> results with my old Umax powerlook II scanner and Vuescan. Nice about
> Vuescan <http://www.hamrick.com> is that it can be used for density
> readings. It uses the raw output of the CCD for that. Optical density
> readings are measured as log (max_colour from CCD/raw_colour from CCD.
> 
> These density readings can be accessed in Vuescan when moving the
> pointer over the scanned image while holding ctrl.
> 
> When I remeasured inkseparation points with my second hand XRite the
> fell on exactly the same spots. Linearisation worked fine too.
> 
> Hope this helps

Thanks Kees,

I do you vuescan for scanning (only scanning software that works in system X) with 
my old microtek V600 and my UMAX Astra 1200s. Unfortunately, I find the neither of 
these scanners can differentiate the 5% patch from the 0% patch or even the 10% 
patch. 

Thanks for the info about holding the ctrl in vuescan. I just may try again.

-bruce