Re: neutral reference scale?
Re: neutral reference scale?
- Subject: Re: neutral reference scale?
- From: email@hidden
- Date: Thu, 29 Mar 2001 08:54:40 EST
In a message dated 3/28/01 10:52:42 PM, email@hidden writes:
>
I would like to find something like a gray step wedge, that could be
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purchased somewhere, and can serve as a visual reference of absolute
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neutral gray. I mean something like a=b=0 if measured with a
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superexpensive instrument under any daylight-kind (D50, D65, etc.)
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illumination.
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>
Is there such a beast for under $50 anywhere?
My Kodak Grayscale has a* and b* variances that are below the decimal point,
at both D50 and D65; except for the few lightest patches which approach a b*
value of 2, for the simple reason that the paper has a b* of 2...
C. David Tobie
Design Cooperative
email@hidden