Datacolor User to User Support Group.

In a message dated 2/7/07 9:21:34 PM, davedoughman@... writes:


> 
> THEN I tried to profile CostCo Professional Glossy. Prints come out
> about 3-4 stops too dark from what I see on the monitor. Is there a
> button I missed somewhere?
> 
Several possibilities. First is device calibration, be sure if you 
recalibrate and read a sample patch again (using the spot reading tool from the tools 
menu) that your new measurement is very close to your original measurement 
(which you can check by arrowing through the measured chart and reading values from 
the bottom of the page.   If they are not close, reread the target.

Next, the blacks on gloss papers are darker. This means everything else is 
darker. After all, to get a deeper black is part of the reason for using a gloss 
paper, and throwing that away to make it identical to a matte result would be 
a shame. So if your monitor (especially an LCD monitor) is starting at LCD 
black (which is weaker) and your print is starting at gloss print black (which 
is deeper), then you won't get an exact match, and you probably DON"T WANT and 
exact match, as that would mean throwing away black deepness for screen 
matching.

Next, the screen-to-print issue above can be made even worse if you have an 
ambient light (or proofing light) to screen luminance mismatch. Start with 
Spyder2PRO's ambient light feature to determine that your lighting is not too 
bright, and then calibrate your monitor to a level that matches. 

Another factor is whether you are matching your workingspace image to the 
print (not intended to match) or a Photoshop or PrintFIX PRO2 softproof image on 
screen to the print (which is designed, when possible, to match). Be sure to 
use a softproofing mode when comparing.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com