Re: Eye-One and UV
Re: Eye-One and UV
- Subject: Re: Eye-One and UV
- From: Chris Murphy <email@hidden>
- Date: Wed, 17 Apr 2002 16:19:00 -0600
email@hidden writes:
>
A salesperson just informed me that the Eye-One spectro doesn't support any
>
UV filter and can NEVER do so in the future... Bruce Fraser's review in the
>
recent MacWorld doesn't mention it... is it true?
1/2 true, 1/2 false. It curently doesn't support a UV filter, but it
could support one if Gretag Macbeth decided to make one. I'm not
convinced it's the right thing to do anyway. It's better to compensate
for paper brighteners by using relative measurements instead of absolute
measurements where essentially the apparent color of the paper is removed
from the paper white reading, and pretty much all highlights, tapering
off through 1/4 tones and midtones. Densitometry has had a similar
concept when accounting for paper reflectivity in density measurements,
or not.
UV filters will solve this problem for brighteners in paper, but it will
cause erroneous readings with inksets containing any amount of
fluorescence, even a little bit of it will start to rapidly degrade the
accuracy of the measurement.
Chris Murphy
Color Remedies (tm)
Boulder, CO
303-415-9932
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