Dear developers,

I've extracted some (should be all available) wb-presets from a Sony 
DSLR-A580 camera RAW files and I think, it would be nice to make it 
available for other users...

By the way, I found that, the displayed temperature values seem to be 
wrong calculated (at least in my case). For example if I choose the 
6500K preset, the multipliers displayed in darktable are correct, but 
tint and color temperature values are NOT... This are values displayed 
in darktable:

preset: 6500K
-------------------------------
tint:    0.983
temp: 6318K
R: 2.926
G: 1.000
B: 1.391

My guess is, that this has something to do with colormatrix (i.e. 
/src/external/LibRaw/internal/dcraw_common.cpp). At the same time the 
picture itself looks correct (the same as the JPEG version comes from 
the camera directly). Nonetheless it would by nice if you could fix it, 
so it would be possible to see "correct" WB values.

With best regards
   toalabaer



   { "SONY", "DSLR-A580", Daylight, -3,        { 2.429688, 1, 1.746094, 
0 } },
   { "SONY", "DSLR-A580", Daylight, -2,        { 2.500000, 1, 1.683594, 
0 } },
   { "SONY", "DSLR-A580", Daylight, -1,        { 2.574219, 1, 1.625000, 
0 } },
   { "SONY", "DSLR-A580", Daylight, 0,        { 2.652344, 1, 1.570313, 0 
} },
   { "SONY", "DSLR-A580", Daylight, 1,        { 2.726563, 1, 1.519531, 0 
} },
   { "SONY", "DSLR-A580", Daylight, 2,        { 2.808594, 1, 1.464844, 0 
} },
   { "SONY", "DSLR-A580", Daylight, 3,        { 2.890625, 1, 1.414063, 0 
} },
   { "SONY", "DSLR-A580", Shade, -3,        { 2.851563, 1, 1.437500, 0 } },
   { "SONY", "DSLR-A580", Shade, -2,        { 2.933594, 1, 1.386719, 0 } },
   { "SONY", "DSLR-A580", Shade, -1,        { 3.015625, 1, 1.343750, 0 } },
   { "SONY", "DSLR-A580", Shade, 0,        { 3.109375, 1, 1.296875, 0 } },
   { "SONY", "DSLR-A580", Shade, 1,        { 3.199219, 1, 1.250000, 0 } },
   { "SONY", "DSLR-A580", Shade, 2,        { 3.292969, 1, 1.210938, 0 } },
   { "SONY", "DSLR-A580", Shade, 3,        { 3.386719, 1, 1.167969, 0 } },
   { "SONY", "DSLR-A580", Cloudy, -3,        { 2.605469, 1, 1.597656, 0 } },
   { "SONY", "DSLR-A580", Cloudy, -2,        { 2.683594, 1, 1.546875, 0 } },
   { "SONY", "DSLR-A580", Cloudy, -1,        { 2.765625, 1, 1.492188, 0 } },
   { "SONY", "DSLR-A580", Cloudy, 0,        { 2.847656, 1, 1.441406, 0 } },
   { "SONY", "DSLR-A580", Cloudy, 1,        { 2.925781, 1, 1.390625, 0 } },
   { "SONY", "DSLR-A580", Cloudy, 2,        { 3.015625, 1, 1.343750, 0 } },
   { "SONY", "DSLR-A580", Cloudy, 3,        { 3.105469, 1, 1.296875, 0 } },
   { "SONY", "DSLR-A580", Tungsten, -3,        { 1.500000, 1, 3.097656, 
0 } },
   { "SONY", "DSLR-A580", Tungsten, -2,        { 1.542969, 1, 2.992188, 
0 } },
   { "SONY", "DSLR-A580", Tungsten, -1,        { 1.593750, 1, 2.886719, 
0 } },
   { "SONY", "DSLR-A580", Tungsten, 0,        { 1.644531, 1, 2.785156, 0 
} },
   { "SONY", "DSLR-A580", Tungsten, 1,        { 1.695313, 1, 2.687500, 0 
} },
   { "SONY", "DSLR-A580", Tungsten, 2,        { 1.746094, 1, 2.593750, 0 
} },
   { "SONY", "DSLR-A580", Tungsten, 3,        { 1.796875, 1, 2.503906, 0 
} },
   { "SONY", "DSLR-A580", Fluorescent, -1,    { 1.882813, 1, 2.789063, 0 
} },
   { "SONY", "DSLR-A580", Fluorescent, 0,    { 2.324219, 1, 2.207031, 0 } },
   { "SONY", "DSLR-A580", Fluorescent, 1,    { 2.570313, 1, 1.613281, 0 } },
   { "SONY", "DSLR-A580", Fluorescent, 2,    { 2.910156, 1, 1.433594, 0 } },
   { "SONY", "DSLR-A580", Flash, -3,        { 2.714844, 1, 1.539063, 0 } },
   { "SONY", "DSLR-A580", Flash, -2,        { 2.789063, 1, 1.484375, 0 } },
   { "SONY", "DSLR-A580", Flash, -1,        { 2.871094, 1, 1.433594, 0 } },
   { "SONY", "DSLR-A580", Flash, 0,        { 2.960938, 1, 1.386719, 0 } },
   { "SONY", "DSLR-A580", Flash, 1,        { 3.039063, 1, 1.339844, 0 } },
   { "SONY", "DSLR-A580", Flash, 2,        { 3.136719, 1, 1.292969, 0 } },
   { "SONY", "DSLR-A580", Flash, 3,        { 3.222656, 1, 1.250000, 0 } },
   { "SONY", "DSLR-A580", "6500K", 0,        { 2.925781, 1, 1.390625, 0 } },


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