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Archive 2012 · Blotchy and noisy shadows after monitor calibration
  
 
Navyblue
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p.1 #1 · Blotchy and noisy shadows after monitor calibration


I have been using Windows since the early 90s. I got my first Mac (the current latest 21.5" iMac) recently, so I don't know too much about it.

I use a Pantone Huey for monitor calibration. After calibration, my screen kinda looked "right". In the "System Preference", it reflected the ICC profile that is generated by Huey. However in the shadows I see blotches and chromatic noise that I don't see on other computers. I see them in all applications, CS, DPP, Firefox, Mac's built in image preview and etc. Reverting to other ICC profiles that came with Mac removed the blotch and chromatic noise.

What am I missing here? Or is Huey incompatible with OSX Lion.

Thanks for reading.



Jan 29, 2012 at 09:13 PM
sevan pulurian
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p.1 #2 · Blotchy and noisy shadows after monitor calibration


Pantone huey PRO reqs:

CRT and LCD Monitors
Windows® 2000, XP, Vista, 7
32 or 64-bit modes
Mac OS X 10.3 or higher
USB port

You should be good, have you tried to re-cal once more? Disable any auto contrast or any auto adjusting if enabled.

Sevan



Jan 30, 2012 at 02:13 AM
howardm4
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p.1 #3 · Blotchy and noisy shadows after monitor calibration


it might well be the Huey isn't particularly compatible w/ the screen technology used on the Mac (is the 21.5" using LEDs or is it using CCFL? LEDs I think)


Jan 30, 2012 at 03:44 AM
morganb4
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p.1 #4 · Blotchy and noisy shadows after monitor calibration


sevan pulurian wrote:
Pantone huey PRO reqs:

CRT and LCD Monitors
Windows® 2000, XP, Vista, 7
32 or 64-bit modes
Mac OS X 10.3 or higher
USB port

You should be good, have you tried to re-cal once more? Disable any auto contrast or any auto adjusting if enabled.

Sevan


LED is the problem, very few things on the market can calibrate an LED well. Spyder 3.0 or 4.0 elite version or the Eye 1 Display Pro. Use these, probably the Eye 1 D P.

The above models are aware of auto brightness and will disable it for you. There is no auto contrast on an Apple Display. Just brightness.




Jan 30, 2012 at 04:44 AM
Navyblue
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p.1 #5 · Blotchy and noisy shadows after monitor calibration


Thanks guys.

My huey is the non pro model.

I have the auto brightness disabled, it still won't do I guess?



Jan 30, 2012 at 05:35 AM
howardm4
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p.1 #6 · Blotchy and noisy shadows after monitor calibration


the Huey isn't able to deal w/ the LED backlight of the iMac. it's not factory calibrated for them.


Jan 30, 2012 at 01:13 PM
Navyblue
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p.1 #7 · Blotchy and noisy shadows after monitor calibration


Thanks. Time for a newer calibrator, or an older screen.


Jan 30, 2012 at 02:09 PM
howardm4
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p.1 #8 · Blotchy and noisy shadows after monitor calibration


look into the ColorMunki Display or i1Display Photo. Same hardware but the software is different between the two.


Jan 30, 2012 at 02:26 PM
Navyblue
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p.1 #9 · Blotchy and noisy shadows after monitor calibration


morganb4 wrote:
Spyder 3.0 or 4.0 elite version ...


Only the elite version would work? Isn't the difference with the pro and express version are in the software only? Is there some kind of spec to know whether a screen calibrator is good for LED lighted LCD?



Jan 30, 2012 at 02:58 PM
 

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Navyblue
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p.1 #10 · Blotchy and noisy shadows after monitor calibration


howardm4 wrote:
look into the ColorMunki Display or i1Display Photo. Same hardware but the software is different between the two.


So these would work for LED lighted LCD?



Jan 30, 2012 at 03:00 PM
howardm4
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p.1 #11 · Blotchy and noisy shadows after monitor calibration


yes


Jan 30, 2012 at 03:19 PM
skibum5
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p.1 #12 · Blotchy and noisy shadows after monitor calibration


Navyblue wrote:
So these would work for LED lighted LCD?


yes

more info:

(they didn't test spyder 4 yet, they love the i1 Display Pro performance)
http://www.drycreekphoto.com/Learn/Calibration/MonitorCalibrationHardware.html

http://www.fredmiranda.com/forum/topic/1079734

Edited on Jan 31, 2012 at 09:15 PM · View previous versions



Jan 30, 2012 at 07:51 PM
morganb4
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p.1 #13 · Blotchy and noisy shadows after monitor calibration


Navyblue wrote:
Only the elite version would work? Isn't the difference with the pro and express version are in the software only? Is there some kind of spec to know whether a screen calibrator is good for LED lighted LCD?


Yes, difference is software based. No the only way you can close to knowing is by hassling people like us :-)



Jan 30, 2012 at 10:42 PM
Navyblue
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p.1 #14 · Blotchy and noisy shadows after monitor calibration


Thanks guys.

So, is it the wide gamut colour or the LED backlight it self that is causing this difficulty in measurement?

So I assume, the cheaper Spyder 3 Express would work too?



Jan 31, 2012 at 02:31 PM
howardm4
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p.1 #15 · Blotchy and noisy shadows after monitor calibration


the express will probably work but it's software is quite limited relative to the Elite and Pro


Jan 31, 2012 at 03:56 PM
morganb4
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p.1 #16 · Blotchy and noisy shadows after monitor calibration


@Navyblue = both
The express apparently will not cope with wide gamut



Jan 31, 2012 at 10:41 PM
Navyblue
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p.1 #17 · Blotchy and noisy shadows after monitor calibration


Thanks guys.


Feb 03, 2012 at 12:37 AM





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