Re: White point readings - i1Pro2 vs. original
Re: White point readings - i1Pro2 vs. original
- Subject: Re: White point readings - i1Pro2 vs. original
- From: John Lund <email@hidden>
- Date: Fri, 11 Jul 2014 17:10:30 -0700
Hi Andrew,
Thanks. Yes it's frustrating.
It does seem strange that the current software gets the same WP reading from the original i1Pro, it's only the newer instrument that reports a L* value that seems to be too low…
John
JWL Images
Emeryville, CA
On Jul 11, 2014, at 4:56 PM, Andrew Rodney <email@hidden> wrote:
> On Jul 11, 2014, at 5:51 PM, John Lund <email@hidden> wrote:
>
>> For a given media - Epson's Watercolor Radiant White, e.g. - the media WP measured by the original i1Pro *consistently* shows as L*97, and this is across charts measured this year and old ones from as far back as 7 years ago (same WP value even in CMYK profile created for ColorBurst RIP). Measuring the same media last month with my i1Pro2, the media WP reported is L*94. I get similar discrepancies measuring charts on other papers
>
> The bottom line is, X-rite changes things and the results therefore change. Case in point was some hardware change in the iSis between Rev C and E which produced a similar difference you report.
>
> Andrew Rodney
> http://www.digitaldog.net/
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