Datacolor User to User Support Group.

> > The profiles make saturated blues to render as quite purplish
> > and inspecting the generated ICC's on ColorSync Utility show that the
> > gamut is quite small.
> 
> That usually means that the targets weren't printed correctly,
> with color management disabled. Weakly printed targets
> (with color management turned on) produces a small gamut in the
> resulting profile.

I printed the Spyder3Print targets (and XRite targets for that matter)
with color management disabled (CS3: "No Color Management", Driver:
"Application Managed Colors.")


The softproofs looks kind of weird and low contrasty, could there perhaps
be  something wrong with the measured paper black/white?

What range of Lab values are generally considered sane for paper
white/black?
Or should I be just looking at the Density on the "Spot Measure" -tool?

> Can you send the measurement files to me at davem@...
> so I can have a look? Use the File:Open Data command to open the
> folder that contains them.

Emailed you you the URl to files. Did it provide any insights what
could be the problem?


> > I have also a XRite spectro at my disposal, and none of the
> > profiles generated with that piece of hardware/software caused
> > such weird color casts. Also XRite generated ICC's
> > show considerably larger and smoother gamut.
> >
> Something tells me that those targets were printed correctly. I'm
> assuming that you did RGB profiles (not CMYK) using both packages?
> How did you print the XRite targets when you built profiles that way?

Not using RIP so 16-bit RGB profiles are what I'm building.

I printed all the targets the same way straight from Photoshop CS3.
For Spyder3Print the The Expert Target (large) and Extended Grays from
Targets/ directory,
"No Color Management" on CS3 Print and same printer driver settings
(media, quality, "Application Managed Colors").

The settings on the printer itself were not touched between
printing different flavours of targets. (Except obviously
selecting correct media type when changing the media.)


> Have you watched the videos yet? Those will also give you plenty of  
> clues:
> 
> http://spyder.datacolor.com/learn_videos.php

Yep. They were very helpful with starting up and learning how to
read patches properly. As far as I can tell, I'm performing the
printing/measurement as instructed (except printing through Photoshop.)



- Richard