REVIEW: BenQ EW2430 Part 9
Colours appear strong and natural during Blu-ray testing. Due to the very low black value, the contrast ratio is excellent, especially if the room is darkened accordingly. Detail reproduction in bright and dark scenes is very good. At a joint film evening, the large viewing angle is very pleasant, too.
A little handicraft, however, visibly benefits to the image quality. For instance, the cool factory settings can be softened by taking back a few points at the blue control. Being another useful tweak, a gamma option of 1 improves the tracing in dark scenes. With the AMA option "High", fast camera panning in sports broadcasts get less mushy. Here, the long switching times of the panel become noticeable.
The effect of the dynamic contrast does not convince us. For one, the black level is very good already, and automatic brightness reduction in dark scenes, on the other hand, might attract negative attention, depending on the film.
Without problems, the EW2430 processes HD content with a resolution of 720 and 1,080. 720p is upscaled to native panel resolution in good quality. Since the EW2430 is only able to convert SD material with visible quality loss, one alternatively should test the scaling performance of the respective player.
The EW2430 accepts frame rates of 50 and 60 Hz from Both PC as well as Blu-Ray player; the judder test does not show problems in either case. At frequencies of 24 and 30 Hz, which are not accepted, the screen remains black.
In the test procedure, the EW2430 via HDMI also accepts field-based content with 576i and 1080i. The following photos show our test results at 1080i50.
Processing of video material with a cadence of 2:2 and 2:3.
As shown, all signals with 2:2 and 2:3 cadence are upscaled via field-scaling (see the moiré patterns on the platforms). At 576i the picture flickers slightly, while line flickering is observed at 1080i. This monitor delivers clearly better results when showing frame-based content.
SD resolutions in 16:9 format the EW2430 is able to display true page; the circles in our test sequence are reproduced correctly. At the playback of 4:3 letterboxed material, the circles are not perfectly round but slightly compressed.
Scaling of SD material in 16:9 (left) and 4:3 Letterbox.
In the OSD, the EW2430 also offers an overscan option, which trims away about 35 pixels on both sides. The scope of the trim is not adjustable.
Using HDMI inputs, the correct signal level (RGB 16-235 and 0-255, respectively) can be selected in the OSD. The appropriate colour model is set by the monitor automatically.
Correct signal level at the HDMI input.
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