Message
Re: [colorvision_group] Re: Spyder2Pro on a Viewsonic CRT Monitor
2006-04-16 by CDTobie@aol.com
In a message dated 4/16/06 2:41:45 PM, hanson102@... writes:
but my problem is that the spyder2PRO gives me profile that has a
reddish cast. ... doesn't this mean that the profile has an error or
something? it should give me a good 'white' temperature but it's just
too warm.
If your red gain is low, the only way to get a 6500k white balance is by allowing the software to compensate for this by lowering your green and blue channel maximum values at the videocard level. This is not ideal, but an older Viewsonic CRT is a low cost, end-of-life situation. Getting a pinkish whitepoint would indicate that the video corrections were too extreme, but my guess is that the overall luminance would suffer a great deal before that would happen, and your result would be, first and foremost, too dim, in order for it to be too red from this cause.
You can tell a lot from the curves window, which should show the drop in max luminance in the green and blue channels, and the relative gamma curves of red, green, and blue, to tell what the color balance will look like elsewhere than at white. If your monitor looks red in Photoshop, but not in non-color managed apps, then its not the calibration thats the culpret, but the profile definition.
You could go through the process of diagnosing this with ColorVision Support, but I suspect, in the end, that getting a new monitor will be the key step to getting controllable color.
C. David Tobie
Product Technology Manager
ColorVision Business Division
DataColor Inc.
CDTobie@...
www.colorvision.com