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Konica Minolta Maxxum 7D Colorcheck Colorcheck analyzes images of the GretagMacbeth ColorChecker for tonal response, and color accuracy. The GretagMacbeth ColorChecker is an 8x11" inch chart consisting of 24 patches with 18 familiar colors and six grayscale levels, which have optical densities from 0.05 to 1.50; a range of 4.8 f-stops. None of the colors is completely saturated. The quality of the chart is very high— each patch is printed separately using carefully controlled pigments. Patches have a smooth matte surface. Output Imatest software chart shows: mean camera saturation (saturation being color intensity), general color error (the average distance between the ideal and real measured colors, normalized to have the same average saturation as the ideal Colorchecker) and single color errors for each single color in Colorchecker. This test is performed at ISO 100, max focal aperture and in 3 different light conditions (neon, flash and outside in the shade) and white balance in auto. For more informations on how this test is performed and how the software works you can go at this address: http://www.imatest.com/docs/colorcheck.html. Results In all the tests we found color saturation being too high, ranging from 104.9 % with flash light to 119.3 % with neon light, where 100% is the re fence value. Best color accuracy compared to the sample is obtained using the camera's flash. Click on each ColorChecker to see the test results.
neon
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