Datacolor User to User Support Group.

In a message dated 3/7/06 12:27:31 PM, davedoughman@... writes:


> Is it best to have one or two sheets of the same paper you're
> profiling under the test print being measured or would something else
> be better? Gray mate board? Another color matte board? My desk is Oak
> and may affect measurements on thin papers.
> 
> Take a sheet of the paper in question, choose the Measure function from the 
PFP Tools menu, and make a couple of test measurements to get the device (and 
yourself) warmed up. Then meausure the white of your paper on an artifically 
whitened paper backing, an unbrightend white backing, and a   light gray 
backing. If you see differences in the results, your paper is thin enough to require 
care in what backing you use. If the results are identical, I wouldn't worry 
much about it. More of the same paper is a great way to back printed targets. 
Or you can stick with a single white backing for all measurements, as long as 
it doesn't glow too much in the dark... Reading an unwhitened thin paper over a 
whitened backing would add in a factor that you wouldn't otherwise have, and 
don't need to introduce. I suspect, given the relative nature of printer 
profiling measurements, that any of the above would make good profiles, but why not 
do it right, if possible?

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