The maximum projectable 300-inch screen size provides a close-to-the-movie-like look and feel, while the projector's price/performance ratio is significantly higher compared to large-screen TVs. Optoma as an important representative of the DLP projection camp, backed by the powerful R & D capabilities of Zhongqiang Optoelectronics, the projector product line is very rich, only a home appliance category, there is plenty of room for choice. And we recently got this HD290, it is a newly listed 1080P 3D home machine, equipped with TI's latest 4422 DMD chip, 3000 stream brightness, 20,000:1 contrast ratio, and DynamicBlack intelligent dynamic aperture technology and six-stage Color wheel. In maintaining a good technical parameters and product work, the price of 3999 yuan is a major bright spot. What about specific performance, can it become the first choice for home use? We told you the answer after two weeks of experience. Lightweight design White has always been the main color of the console, and Optoma HD290 is no exception. Compared to the "dark gray" in the audio-visual room, white is undoubtedly more friendly and versatile to the home environment. Since it is a home machine, lightweight design is also essential. The size of 316mm x 244mm x 106mm, the weight of 2.8Kg, is easy to move and does not occupy the floor. It is too much trouble for hoisting and can be placed directly in the living room. The top of the fuselage uses piano paint, beads white looks very glossy. The bottom support feet can be adjusted in height for convenient deployment. In terms of configuration, Optoma HD290 has 1080P (1920x1080) physical resolution, 3000 lumens brightness, 20,000:1 contrast, six-segment color wheel, a new generation of Dynamic Black intelligent dynamic aperture technology, support for 3D functions. In terms of lens, it supports 1.3x optical zoom, which is slightly larger than 1.2 times that of ordinary households, and further facilitates installation. The projection ratio is 1.58~2.06:1, and 100å‹16:9 images can be projected within a distance of 3.48~4.54 meters. The buttons are concentrated on the top of the body, including the power button, menu, direction, return and other common functions. In order to enhance heat dissipation, the air inlet and outlet on both sides are relatively large. How to dissipate heat, there will be detailed tests later. Interface, 2 HDMI interfaces (1.4a, HDMI1 support MHL), support for 1080P 3D signal input, a USB interface, VGA-in, Composite, Audio out, Audio in and other commonly used signal interfaces, as well as RS232 interface, can be achieved remote control. The remote control still has a backlight function. The power button switch is set separately to prevent inadvertent touch. Because the projector has a blank screen time when it starts up, many users think that there is no trigger operation and repeated switching on and off may cause problems such as crash. Brightness and light resistance Optoma HD290 has a brightness of 3,000 lumens, which is considered to be a relatively high level in home entry-level machines, because the general home-use machine is also about 2,000 lumens, which means that its ability to resist ambient light is greatly enhanced. The actual test also found that the Optoma HD290 had better screen brightness than the general machine when multiple indoor lights were turned on. No indoor lighting screen photo Open indoor 2 fluorescent screen photo Although the colors were affected by the lighting, the overall look and feel was excellent. At the same time, thanks to the high contrast, the black background is still "compressive" and not completely gray. In "Cinema" mode, we look at the color performance of the HD290. Optoma HD290 uses Brilliant Color II technology to enhance the brightness of the screen while increasing the color saturation by enhancing the midtones to make the picture more realistic and vivid. The snacks in the picture above are bright but not oversaturated. The green color transition is natural, and there is a clear distinction between green and dark green. The autumn scene in the image above, the sky blue gradient, the layering of white clouds, and the different yellow leaves present are all very well separated. On the color control, Optoma HD290 is satisfying. We also use a 4K Blu-ray player for video viewing. Here is a set of screen shots. Compared with television, the warm yellow color on the projector screen is more filmy and closer to the taste of a movie theater. This may be one reason why many people have a special liking for projectors. In addition, the projector is different from the liquid crystal television. The latter is subject to the deflection speed of the liquid crystal molecules and is not ideal in representing a dynamic scene. For example, high-speed sports football tends to cause tailing. The HD290's dynamic performance is excellent. The trajectory of the football is very clear. This is very difficult to see on LCD TVs. Of course, since HD290 does not support HDR, when the 4K HDR movie "Mars Rescue" was presented, the color of Mars surface was slightly reddish, and the brownish color of sand and gravel did not appear. We also look forward to the early availability of HDR on the entry machine. Projection setting options support zoom, shift, and trapezoidal corrections. Display mode, support for presentations, bright, cinema, games, sRGB and more. Among them, "Cinema" mode achieves the best balance between color and brightness. It is recommended to use this mode when watching movies. High-dynamic energy-saving mode saves energy Optoma HD290 projector is equipped with a 240W replaceable light bulb, in the "bright mode", the measured power consumption is about 254.9W; if you switch to "high dynamic energy saving mode", it will dynamically adjust the output brightness according to the display content , The measured time is below 150W for most of the time, this power saving effect is unexpected. Power consumption in bright mode Power consumption in high dynamic energy saving mode In terms of noise, the noise figure of the Optoma HD290 measured at a distance of less than half a meter from the projector in a room with an ambient noise level of 30 dB was about 41.3 dB. Many people may not have a concept of noise in life. In previous evaluations, we have repeatedly mentioned that normal office environment noise is 50 dB, and the sound of pouring water is 40 dB. Therefore, the noise performance of HD290 can be used in normal use. Ignoring it will not cause any interference with use. Here we have to say a few words, heat and noise is an important manifestation of machine stability, especially the home machine, too much noise will greatly affect the user experience. This value can't be judged by the official website as being pretty. We must refer more to the actual situation in use. On the fever side, after playing a 1080P video for an hour and a half, the body temperature was only about 22.4°C, and it hardly felt heat. The heat is mainly concentrated in the air outlet. Among them, the temperature of the light source is about 36.4°C. Compared with other products, the heat dissipation performance is very satisfactory. Write last As a home-level projector with less than 4,000 yuan, Optoma HD290 gives a sincere 3000 lumens brightness, coupled with a curtain with a gain effect, can effectively fight against ambient light, do not deliberately pull the curtain when used at home To make use of the scene more comfortable. Coupled with solid color tuning, convenient installation adjustments and outstanding energy management, the Optoma HD290 can be said to be easy to use. The absence of HDR is acceptable at this price segment. All in all, Optoma HD290 projectors can indeed afford the "home preferred entry level" name. Hall Voltage Sensor,Hall Effect Voltage Sensor,Open Loop Voltage Sensor,Open Loop Hall Voltage Sensor Zibo Tongyue Electronics Co., Ltd , https://www.tongyueelectron.com
Near the end of the year, another wave of intensive release. In addition to going to the cinema, more people now choose to watch movies at home. And this is inseparable from the progress and popularity of home projectors.
February 02, 2023