Yeah, I saw SMI and thought I should check out what it was, the dxo site
gives a pretty thorough explanation and I was impressed with the site in
general (hadn't looked at it seriously before). Dxo seem like they know
what they are talking about unlike some other sites on the interweb.
...Wayne
> -----Original Message-----
> From: usher99@xxxxxxx [mailto:usher99@xxxxxxx]
> Sent: Tuesday, 3 April 2012 8:45 AM
> To: olympus@xxxxxxxxxxxxxxxxx
> Subject: [OM] Better color
>
> Some might recall a cryptic reference to SMI ( Sensitivity Metamerism
> Index) in a comment of one of Jim's nice images. Just in case it is of
some
> interest, here is the link to better explanation.
>
> http://www.dxomark.com/index.php/About/In-depth-
> measurements/Measurements/Color-sensitivity
>
> A value of 50 is the difference in color between a daylight illuminant and
an
> illuminant generated by fluorescent source--a "modest" error.
> Cell phone cams said to be in 40 range.
>
> Note DSLR's are crunched into the 75-85 range but still appears
interesting
> with no claim to be a be-all/end-all measure of color performance . Sony
> A900 is waaay up there and considered to have excellent and accurate color
> at base ISO. Stronger colored filter array does lead to worse higher ISO
> performance as fewer photons are available.
> Canyon 5D classic in a blinded study judged to have excellent skin tones
(a
> tough test) and 5DII perhaps slightly less so. 5Dc way up there at 84.
> Hmmm.
>
> Color me correctly, Mike
>
> Ranks:
>
>
> A900: 87
> 1Dsiii: 86
> A77: 86
> Nex-7: 85
> 1Dsii: 85
>
> A550: 84
> 5D: 84
> Nex-5N: 84
> Nex-5: 84
> A55: 84
>
> Nex-C3: 83
> D700: 83
> KM 7D: 83
> D2Xs: 83
> A100: 82
>
> A850: 82
> 1D IV: 82
> S5 Pro: 82
> NX11: 81
> IQ180: 80
>
> EP3: 80
> 5Dii: 80
> D3x: 79
> D800: 78
> D7000: 78
>
> K5: 78
> 7D: 78
> T2i: 78
> D4: 77
> X100: 77
>
> GH2: 77
> 1Ds: 77
> M9: 76
> G12: 76
> LX5: 75
> --
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