Re: Fluorescence
Re: Fluorescence
- Subject: Re: Fluorescence
- From: email@hidden
- Date: Wed, 21 Feb 2001 11:37:27 EST
In a message dated 2/20/01 2:49:42 PM, email@hidden writes:
>
I also did some measurings with my paper. Measuring IT8.7/3 target without
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UVfilter I get profile where neutral gray (15% K) stays neutral (16C 13M
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13Y
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0K), but measuring with UVfilter, neutral gray (15% K) becomes a little
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bluish (16C 14M 8Y 0K). So this is what I can't understand, because I
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thought that result should be the same!
UV fluorescence tends to make papers look blue, and profiles overcorrect to
end up with profiles that have a yellow white point. Adding a UV filter
should reduce this effect. Your results are in line with this in terms of the
relation between filtered and unfiltered, but not necessarily in terms of the
results. As I've noted before, assorted software seems to get different
results from the various spectros and their filtered/unfiltered versions.
C. David Tobie
Design Cooperative
email@hidden