Re: Source of Photoshop PANTONE Lab values
Re: Source of Photoshop PANTONE Lab values
- Subject: Re: Source of Photoshop PANTONE Lab values
- From: email@hidden
- Date: Sun, 7 Apr 2002 11:18:13 EDT
In a message dated 4/7/02 10:51:57 AM, email@hidden writes:
>
Does anyone know what is the source of PANTONE Lab values? I mean, how
>
reliable is it? For instance, when in the Color Picker, if choose Orange
>
021
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and Photoshop displays L=63 a=63 b=95, what credence would you give to
>
this
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Lab value (other than being D50/2)? I wonder whether this is it the actual
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PANTONE Lab value for the corresponding PANTONE color from PANTONE Inc.
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or
>
some Lab value cooked up by Adobe?
Companies such as Adobe licenses Pantone values from Pantone, otherwise they
could not use the Pantone disignation. But whether a specific application is
using the latest values (they change as paper and screening changes in the
Pantone books) is a different issue. There is also a rather unintuitive
situation with Photoshop Pantone values where the values listed are not what
you might expact them to be when first displayed...
The ideal situation is when RIPs use named color callouts to replace Pantone
colors named in PostScript files with accurate values for the specific
device, rather than depending on color values from the file, but for systems
that are not that advanced, the actual color numbers from the library are
still needed.
C. David Tobie
Design Cooperative
email@hidden
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