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[OM] Better color

Subject: [OM] Better color
From: usher99@xxxxxxx
Date: Mon, 2 Apr 2012 18:45:24 -0400 (EDT)
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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