Color temp of viewing lamps
Color temp of viewing lamps
- Subject: Color temp of viewing lamps
- From: "Mark Rice" <email@hidden>
- Date: Tue, 17 Feb 2004 19:42:49 -0500
I see a lot of posts about measuring the color temperature of viewing
lamps. Here is a caution - I am not sure what instrument can be
believed.
I used to use a color temperature meter, but under any kind of
fluorescent lamps it gave variable results.
I have been doing some work with GTI, and we observed something very
interesting: using their variable intensity light source, the Eye-One
shows that color temperature declines from 4850 K at full brightness to
about 4400 K at low brightness.
Our eyes (a group of very experienced eyes) told us the opposite - it
got bluer is it became less bright. GTI's color temperature meter
confirmed this.
What does this mean? At this point, I don't believe the Eye-One is a
valid color temperature measuring device.
Mark Rice
Zero One
www.zero1inc.com email@hidden
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.