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24 inches: The Dell 2407WFP vs. the Samsung 244T
by Vincent Alzieu
Published on July 17, 2006

After calibration, persistent errors


OK, the colorimeter says that the monitors are perfect after calibration. Nevertheless, you shouldn´t believe this. Your monitor gammut won´t necessarily be the same as your personal of professional printer.

For the "Pros" here is a new test. It compares the calibrated profiles of the monitors to the Pro printers in ISO Coated Fogra27. The coloured parts represent colors that are displayed and in gray, the shades that are saturated by the monitor. The monitor will display uniform color areas for this level of color whereas on paper we might see a color scale or additional details:

Dell 2407WFP
Samsung SM 244T

Results are logically very close as the components are more or less identical…This test of printable colors speaks for itself. It represents quite well the physical limitations of monitors. For individual users this time, here are the consequences for a standard picture in sRGB, which means taken in the usual color space of digital cameras.

In neutral grey, in the flowers, the logo Kodak (who has, by the way, produced this picture), in the fruits: the areas in which the monitor saturates. It no longer displays more detail, just a uniform color area. We have reached its limits.

Dell 2407WFP
Samsung SM 244T

The Samsung is less accurate with standard adjustments than the Dell, but after calibration – as we saw on the color scale patterns of the previous test – it finally reaches a higher level. Its gamut is a little wider and it can display details that are invisible on the Dell.
This result puts the previous test of the patterns compared to the printer gamut into perspective. Indeed, monitors have limitations as they do not go as far as professional printers in some shades. For personal use, however, picture editing or printing, they are more than enough.

Finally, to finish with colors, the two monitors showed some disparity in brightness, which is 15% higher below than in the middle of the monitor. Homogeneity is perfect in the upper half.
This brightness variation has a small impact on color intensity. Nevertheless only an expert user will really see this. We have already seen much worse (the variation was 50% for some of the 30 inches…).

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