Message
Re: [colorvision_group] Re: Spyder3 print patch reading guide?
2007-11-11 by CDTobie@aol.com
In a message dated 11/11/07 10:50:23 AM, dealy663@... writes:
I certainly would have greater confidence in the accuracy of my
readings if I knew for sure that the spectro was really centered over
every patch, and not crossing any edges.
I actually expect the opposite situation with a rule; people will stop checking and make far more errors, and go longer before noticing them.
Here's a test that may set your mind at ease about hand measurement. Open a Measure window from the Tools Menu. Take a couple of measurements at the center of a patch to warm things up. Now look at your last measurement value carefully. Move the spectro so it hits the edge of the patch. Measure again. No significant difference. Move it a hair over the edge, a reading that most users would feel was an error, and in need of correction. Unless you moved it significantly over that edge, the value still won't change. The reading area is only in the center of the illuminated area, which is in the center of the nose area.
C. David Tobie
Product Technology Manager
Digital Imaging & Home Theater
Datacolor Inc.
CDTobie@...
www.datacolor.com/spyder3
**************************************
See what's new at http://www.aol.com