Color gradients are reproduced well. Cross bands appear on them at some contrast setting values, but they are not as conspicuous as to be really disturbing.
The backlighting is not really uniform. A bright band is perfectly visible at the bottom of the screen on a dark background, even though I perform my tests under normal daylight. The irregularity of backlighting will be more conspicuous in the evening, in semidarkness. You can also spot a similar bright band along the top edge of the screen, but it is narrower and is less conspicuous.
The color curves look normal but go higher than the theoretical ones. It means the resulting image is somewhat faded, low-contrast. This can be corrected by adjusting the gamma value in the monitor’s menu, if necessary.
Alas, when the matrix brightness is set too low, the monitor suffers from the same problem as the Flatron M173WA, i.e. some dark tones vanish altogether and are displayed as a pure black color.
This problem wouldn’t be at all serious, if you could adjust the screen brightness by changing the backlighting intensity. As it is, the backlight lamps do not affect the image brightness much, so the user just has to use the matrix to adjust the brightness of the monitor.
This is a typical response time of TN+Film matrixes, but the sudden slump at the end of the graph is missing. I guess this is again due to the matrix-based brightness adjustment. In fact, when the matrix brightness setting is set at something other than zero, the graph shows transitions from one and the same dark gray to lighter grays rather than from black to gray. Of course, this affects the response time measurements.
The color temperature setup is something the S75A can be proud of. The 6500K modes are set up so accurately that there is less than a couple of hundred degrees of difference between the real temperatures of white and gray. Even in the 9300K mode the monitor doesn’t produce the bluish image typical of many other models. The only thing I could gripe about is the lack of 5400K mode, but it is not in such a high demand by the users that I should write it down as a drawback of the monitor.
The contrast ratio must have suffered because of the matrix-based brightness adjustment, too. The monitor has the worst contrast ratio among the models included in this review even at the factory settings. And it did even worse than that after I tried to increase or reduce the screen brightness, even though when testing it at the minimal brightness I first reduced the brightness settings to zero (lamps and matrix), and then began to lower the contrast setting.
So my impressions about the SDM-S75A, like from many other monitors from Sony I have dealt with, are rather ambiguous. At a rather high price, it has rather mediocre characteristics like low contrast ratio, ineffective lamps-based and inaccurate matrix-based brightness adjustment, no digital input, and the lack of screen height adjustment. What’s good about this monitor is its restrained exterior that would looks well in an office and the accurate color temperature setup. On the other hand, you don’t need accurate color temperatures for text processing, while for working with color this model won’t be the best choice.