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| Steve Sprengel | profile | all galleries >> Technical Examples >> ACR Calibrator Testing | tree view | thumbnails | slideshow |
| Update: These calibration scripts are obsolete since Adobe has released their DNG Profile Editor. Thomas Fors' ACR Calibrator script can be used to compute camera-specific values for Adobe Camera RAW calibration sliders that minimize the error in the red, green, and blue patches of the X-Rite (Gretag MacBeth) Color Checker. This gallery compares the color error across the color patches of the Color Checker in various lighting conditions as computed by Norman Koren's Imatest image-analysis software. The four panels in each image correspond with the color error of: 1) PhaseOne CaptureOne 4 beta 1 default 300D "Film Standard" conversion, 2) Adobe Camera RAW default 300D conversion, 3) ACR Calibrator default calibration for my 300D, and 4) a modified ACR Calibrator minimizing the color-error across the RGB and CMY color patches. |
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REFERENCES: Tindemans, Fors, Rags-Gardner, Imatest, X-Rite, BabelColor, Bruce Lindbloom, Phase One Capture One. |
 2700K +1 Incandescent |
 3650K +22 Fluorescent |
 5550K -1 Sunny |
 6550K +2 Cloudy |
 6600K -15 Shade |
 BabelColor "Ideal" ColorChecker |
 4750K -3 Studio Lighting |
 6550K+2 CloudsDrizzle CaptureOne V4 DNG vs RAW |
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