Re: Calibration purple hue problem
Re: Calibration purple hue problem
- Subject: Re: Calibration purple hue problem
- From: Marco Ugolini <email@hidden>
- Date: Sun, 06 Sep 2009 12:06:55 -0700
- Thread-topic: Calibration purple hue problem
In a message dated 9/6/09 10:52 AM, Roberto Lotti wrote:
> Hi everyone,
>
> I have a MacBookPro (late 2008) and have troubles calibrating it with an i1
> Display 2. After calibrating/profiling I get a serious purple shift on blue
> colors using color managed software like Photoshop, LR ...
> I've tried different kind of calibration settings and the iMatch and
> basiccolor Display software and always end up with the same problem: when I
> switch the profiles in ColorSync and have e.g. Photoshop open and an image
> with lots of blue, the blue changes regarding the profile as long as I
> don't click on the image or PS, than it suddenly changes into purple.
> The last profile created (some minutes ago, with BasiCColor display 4) has
> these settings:
> - native white point
> - tone curve L (not gamma 1.8 or 2.2)
> - max luminance (160 cd/m2)
> - max contrast
> I used these preset settings to quickly check if I encountered the same
> problems of iMatch. I doubt that going to select more specific settings can
> improve.
>
> I've searched the internet and found people with the same problem, but no
> answers.
>
> Maybe somone can send me his profile (hardware calibrated) which doesn't
> give this blue/purple shift to see if it's working on mine.
> Or I can send my calibrated profile (which gives me the purple shift) to
> check if it happens on other MBPs too.
> I would really appreciate if someone could help.
Roberto carissimo,
A few questions remain unanswered in your message:
- What monitor are you using? (Brand and model)
- Is the purple hue visible when looking at the monitor dead-center (at a
90-degree angle with the center of the display's surface) or only from some
other angle?
- Have you tried attaching another monitor, then calibrating and profiling
that one to see if the problem persists?
- Is there any visible anomaly in other ranges of color besides blues?
- Is the monitor uniform across its surface, or instead does it exhibit hue
shifts in certain areas when a uniform gray is sent to it in Photoshop in
full-screen mode with no visible menus or tool panels?
By the way, someone else's monitor profile would not work for yours. Each
profile is valid only for the specific monitor it is created for, even when
the monitor is the same brand and model.
A dopo.
Marco Ugolini
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