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REVIEW: HP LP2475w Part 8
Both the black and white display are very homogenous and possible without noticeable discolouration. Naturally, the white point must be set up correctly for this. When a completely black image is displayed, a slightly brighter patch can be seen only in a darkened room in the upper left hand corner.
A completely white surface is also displayed in a very homogenous manner. When it is viewed closely, some slightly darker patches can be seen in the outermost corners, sometimes depending on the viewing angle, and in a radius of several millimetres. However, these are only very weak and are so minimal that they do not have a negative effect on the overall positive impression.
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The measurements for the homogeneity of the screen were taken from 15 points across the screen after calibration to a brightness value of 140 cd/m². The lowest value is in the left lower corner and deviates by 18 percent from the target value. Subjectively, however, the difference in brightness cannot be seen.
Since the highest deviation can only be seen in the lower area of the frame and the other measurements have a maximum deviation of 13 percent, the HP LP2475w still has a rating of very good. In addition, the measurement fields which cover the primary working area are extremely homogenous.
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On the left, the black display of the monitor can be seen and on the right, the measurements for the brightness distribution can be seen.
Although HP advertises the LP2475w as having colour space coverage of 92 percent, the company forgets to mention which colour space is meant. Neither the manual nor the Internet site provides a hint here. It is merely mentioned that the model can be used in sRGB mode for work where colour is critical.
sRGB is the lowest common denominator for interaction between various input and output devices in the consumer sector. In addition, Windows assumes sRGB if no colour profile is present for a device or graphics file.
Many colour printers work using the sRGB profile on normal paper. For this reason, too, the sRGB colour space is relevant for "normal users" unlike the ISO Coated colour space. Because of the increasing spread of digital mirror reflex cameras and increase in amateur photography, photo services have also switched many of their exposure machines to the sRGB colour space in order to spare customers having to deal with special colour spaces.
However, the comparison of the monitor’s colour space with the ISO Coated colour space used in offset printing is also interesting, since this generally represents the least modern inkjet printers can manage. Many modern inkjet printers and printing processes cover an even larger area.
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Colour space comparison for the ISO Coated (blue-green) and sRGB (red) colour spaces with the monitor’s actual colour space (black).
In this first comparison, the HP LP2475w can play out its strengths and obviously covers 100 percent of the relatively small sRGB and ISO Coated colour spaces. In addition, it can be seen that the colour space is large for a monitor without an LED backlight, so that even some monitors with LED backlights pale in comparison to this result.
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* All prizes incl. VAT and plus shipping costs. |