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Re: Monitor Calibration

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Re: Monitor Calibration

Subject: Re: Monitor Calibration
From: Klaus Karcher <email@hidden>
Date: Wed, 18 Nov 2009 15:41:55 +0100

Hello Raimar,

thank you very much for this valuable information.

J.Raimar Kuhnen-Burger wrote:

Hi Graeme,

i´ve showed inter instrument agreement only between the EyeOnes, Spyder3s
and DTP94s, not against the Minoltas. The Minoltas are used for comparison
and for reference only. But here are some simplified numbers - averaged from
10 devices that are quite close to each other - against the CS2000 for your
records. To trace the real behavior, there have been no device corrections
used.

I've normalized the measurements to L=100 and calculated DE00 to the reference instrument to make your results more vivid for me:

> sips72ccfl
     ID nits XYZ_X XYZ_Y XYZ_Z     DE00
1   ref  121   118   121   105 0.000000
2 dtp94  115   110   115    94 6.158537
3  spy3  117   113   117    91 7.303911
4  i1d2  114   112   114    93 4.838307
5   i1p  118   113   118    98 5.134003
>
> spva92ccfl
     ID nits XYZ_X XYZ_Y XYZ_Z     DE00
1   ref  124   121   124   110 0.000000
2 dtp94  130   130   130   107 6.969239
3  spy3  134   132   134   122 4.250049
4  i1d2  130   126   129   107 4.341224
5   i1p  130   126   130   111 3.200485
>
> sips102ccfl
     ID nits XYZ_X XYZ_Y XYZ_Z      DE00
1   ref  120   114   120   102  0.000000
2 dtp94  117   115   117    88 10.332352
3  spy3  115   109   115    95  2.636599
4  i1d2  115   116   115    86 14.296324
5   i1p  121   116   121   100  2.646035
>
> sips108led
     ID nits XYZ_X XYZ_Y XYZ_Z     DE00
1   ref  122   117   122   102 0.000000
2 dtp94  120   119   120    93 8.789449
3  spy3  117   112   117    98 1.892420
4  i1d2  115   114   115    93 8.141067
5   i1p  119   115   119    97 2.704125

I think some of the values are rather alarming. In consideration of these results, I ask myself if it might be even better to count on the manufacturer's EDID data then on own measurements with inaccurate and unsuitable devices in some cases.

Klaus
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Re: Monitor Calibration
From: "J.Raimar Kuhnen-Burger" <email@hidden>


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  >Re: Monitor Calibration (From: "J.Raimar Kuhnen-Burger" <email@hidden>)




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