Re: Monitor calibration software/hardware
Re: Monitor calibration software/hardware
- Subject: Re: Monitor calibration software/hardware
- From: Kristy Finley <email@hidden>
- Date: Fri, 21 Sep 2007 22:45:48 -0400
Hi Andrew,
I am very much hoping that you (or others on the list) can help me
understand this exact point. Why is that when I use i1 Match and the
same i1 Display or i1 Pro to calibrate several 20" Apple Cinema
displays in a row, I get radically different results? So different,
that my eye clearly detects a color shift in both the highlights and
even mids (and I'm not talking about a color shift caused by angle of
view). I assure you that my room has controlled conditions. The walls
are painted a very specific, non-reflective grey. The tables and
chairs are all chosen to have little to no impact on the screens. The
lights are specifically 5000K and controlled.
Initially, I thought I had a bad batch of displays, it's been known
to happen. However, when I ran the same set of criteria through CEDP
with the same colorimeter, the screens looked much better. In fact,
they looked identical. Never before had I been able to get this level
of similarity and predictability. This is why I decided that CEDP was
"right" for my school.
I do love the simplicity of i1 Match when teaching students about
very basic color management. Still, in my humble estimation, it's the
simplicity that is failing us. Without any kind of validation or
trending, I was unable to track the displays. Now I've noticed that
i1 Match has added a basic "before and after" functionality, but this
does little to help me understand my screens and their behavior, nor
can I educate my students with this feature.
Basic computer troubleshooting rules state that you limit the
variables when searching a solution. In this case, I've found that my
i1Pros are very dependable, and happily CEDP has given me data to
this effect, data that my eyes confirm with a test image onscreen,
as you earlier suggested. So why is it, that when I use the same i1
Pro and i1 Match I get such differing results from screen to screen?
Thanks,
-Kristy Finley
Technical Consulting Specialist
Macintosh Computer Administrator &
Adobe Certified Expert
School of Animation, Arts and Design
Sheridan College Institute
1430 Trafalgar Road,
Oakville, ON, L6H 2L1
Tel: (905) 845-9430 Ext: 2017
Fax: (905) 815-4188
Email: email@hidden
On 21-Sep-07, at 9:51 PM, Andrew Rodney wrote:
That I'm not so sure about. If we agree the instruments are sound,
why is it
that 3 different software products don't produce the same results
either
visually or numerically (the former usually sticks out like a sore
thumb,
the later isn't necessary)? HOW is the user supposed to know that the
software that came with his/her OPTIX or EyeOne Display or Spyder
is "wrong"
and they need your product? What makes them know your product is
"right"? We
could just look at the results or we could measure them. But
something isn't
kosher here, it hasn't been since I tested the same unit on two
pieces of
calibration software, way back in the Optical days (mid 1990's).
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