Re: Pantone Color Que
Re: Pantone Color Que
- Subject: Re: Pantone Color Que
- From: Tom Beckenham <email@hidden>
- Date: Fri, 13 Dec 2002 13:57:45 +1100
I really want more details of how you compared these instruments. Did you
use the same backing? 10 delta E seems like an enourmous difference.
on 13/12/02 13:24, Roger Breton at email@hidden wrote:
>
<snip>
>
> large as 10 delta E. In setting up proofing profiles we have
>
> to use the same model (and preferably same instrument) for
>
> the source and destination profiling, or very noticeable errors
>
> result. If we use (say) a Gretag Spectroscan for the source
>
> profile, and an X-rite DTP41 for the destination profile, then
>
> an extremely obvious yellow cast results, yet these are two
>
> instruments in relatively good agreement.
>
> Graeme Gill.
>
>
So imagine reconciling two CMYK profiles that one does not have a clue as to
>
which instrument they were measured with? Take TR-001 data that was averaged
>
and measured from an X-rite 938 and a Gretag SPM-100. Make those the Source
>
colors. Now have those colors "matched" by an output profile measured
>
through an X-41 or a Spectrolino. Are you saying that there is some element
>
of chance here? That unless the Source and Destination profiles were derived
>
from the same instrument, that there are bound to be irreconcilable
>
differences?
>
>
Regards,
>
>
Roger Breton
>
Laval, Canada
>
email@hidden
>
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