Introduction: ViewSonic PX727-4K home projector, HDR quality compensation, enhance bright natural colors; 2.35:1 theater mode, experience the shock of large screen projection. —— Purchase of projectors - After more than three years of planning (busy work), this time can finally go into Tibet and complete the journey of the Potala Palace. In order to better record the Potala Palace, this moment of good history not only brought a 4K shooting device, but also brought a 4K home projector to experience the fun of projecting a large-screen 4K video! The commonly used 19-inch LCD monitor, the size of the monitor is still too small, the video display is not easy to see clearly. So buy ViewSonic VP2785 professional 4K display, and finally understand the truth, the LCD monitor screen is no matter how good, but also big 4K projector projection screen. The current 4K projector has a market price of around 1W+. When purchasing a 4K projector, it was found that the ViewSonic PX727-4K home projector is positioned on a consumer-grade 4K projector. Actually it is 2K+ less than the budget's 1W+ price. Think about the 4K monitor of ViewSonic VP2785, which was purchased at the price of 1W+. ViewSonic PX727-4K home projector not only supports 4K video, but also supports high-altitude environment (plateau). This is the two most important reasons for my purchase. Of course, the price is another major reason for buying. At the altitude of 3,643.31 meters in Lhasa (plateau), use the ViewSonic PX727-4K home projector to experience the 4K video of the Potala Palace you have taken and experience the large-screen projection home theater. - Projection image experience - 1. Influence of ambient light In the case of extremely bright ambient light, the projected image is like a mist, and the color is not bright enough. This is a common problem in projectors. With respect to the clarity of the projected image under normal ambient light, the image has a distinct three-dimensional effect. Experience experience and analysis Think about the big projection screen of a movie. When you encounter a strong light, the image does not have a mist. It seems that the glare has a definite influence on the projection screen and resolution of movies and projectors. As far as the current technology is concerned, it has still not been conquered. The above picture shows the effect of turning on the light. The projected image is in the ambient light of the light. Compared with the turn-off effect in the figure below, the difference is hard to distinguish. Experience experience and analysis With a particularly bright ambient light, compared with normal ambient light, a particularly bright ambient light has an influence on the definition of the projection screen. Under normal ambient light, the projection screen has almost no influence. 2. Automatic adjustment of portrait skin color Under different ambient light, the human face on the left side of the projected image is white and tender under the irradiation of sunlight; the human face on the right side is ruddy under the illumination of the cap blocking the sunlight. This is because the product features automatic adjustment of portrait skin to enhance natural and realistic skin tone. 3. HDR quality compensation It can be seen that the projected image is bright and dark, with a sense of depth, and the dark scene can see more details. HDR quality compensation enhances the natural, real and vivid projection images. Strive to achieve high-light scenery is not exposed, low-dark scenery is not blurred, the color performance is gorgeous and natural. - Adjustment of projected images - 1. Spirit level detection The verticality of the projected image is measured by the level meter, and the horizontal and vertical detection is performed to see if the projected image is horizontal and vertical (because of the large screen, the horizontal line of the spirit level is too thin). The projector supports manual manipulation of adjustments, projecting the image horizontally and vertically. 2. Remote control adjusts the projected image Press the Auto Sync button on the remote control. After pressing for 5 seconds, the product will intelligently readjust the frequency and pulse values ​​and automatically adjust the sharpness of the projected image. 3. Test screen to adjust the projected image The projector can display multiple test screens, automatically intelligently adjust the size and focus of the projected image, and check whether the projected image is distorted. 4. Manually adjust the projected image In the case where the same projection distance, rotate the zoom ring (Zoom ring), to achieve 1.2 times zoom achieve appropriate projection size, and then rotate the focus ring to adjust the sharpness of the projected image. 5. Keystone correction key Due to the problem of the projection angle, the projection image distortion is not horizontal and vertical, and the vertical and vertical keystone correction keys are used to manually correct the projection image horizontally and vertically. 6. Adjust the projection angle The 3 feet have 2 adjusting feet. The height of the projected image and the vertical projection angle are manually turned to adjust the feet to fine-tune the angle, and the projection image is corrected horizontally and vertically. —— Flexible use of tips - ViewSonic PX727-4K projector, brightness of 2200 lumens. The 150-inch projection screen, as opposed to the home user, covers the large-screen use requirements of the villa; for the average home user, the 100-inch projection screen is the conventional projection screen. The projection screen is convenient for stationary use as opposed to the living room. Taking into account the flexibility of the home use environment, as well as the large and small features of the projection screen, the projection screen is obviously not as flexible and convenient as a white wall as a projection screen. Therefore, the projector is also not suitable for lifting and use, and the projector only needs to be placed on the desktop, so that it is convenient to use different rooms and living rooms for convenient use. Both HDMI interfaces support 4K video input. HDMI 1 interface - HDMI 2.0 & HDCP 2.2 supports 4K 60Hz video input, HDMI 2 interface - HDMI 1.4 only supports 4K 30Hz video input. Undoubtedly choose HDMI 1 interface to use the effect will be better. In the actual use process, the conventional 16:9 aspect ratio is suitable for a display that is not a large screen and the display effect is more suitable. 4K video display will be better. With a 2.35:1 aspect ratio, the 4K video projection image is not distorted, reflecting the large-screen theater-like effect and enhancing the sense of visual shock. - 2.35:1 Cinema Experience - The 5.5-inch screen of a smart phone requires a 150-inch projection screen in seconds. Need to buy USB to HDMI mobile video converter, Apple iPhone 7 Plus and ViewSonic PX727-4K home projector connection. As for the overall color of the projected image, compared with the iPhone 7 Plus, the color of the projected image is not blurred. In particular, the bright white face is not exposed; the white word is not white. With a 2.35:1 aspect ratio, there is no smearing in the video image and no Caton condition occurs. The 10W built-in speaker, compared to the projection of the big screen, did not meet the maximum volume can not hear. No matter how you adjust the volume, annoying break noises, and electric currents have not appeared. Experience experience and analysis Smartphones are used every day by our hands and can be said to have a high usage rate. Created digital products and home products, and ultimately with the use of smart phones. The 4K projector was found in the experience, and I still liked the high probability of using it with a smartphone. The size of a PC personal computer is too large, and the effect of running big data is better. For a tablet computer with a size of 10 inches, compared with a smart phone, the portability of the smart phone is obviously better and the convenience and fastness are better. —— Environmental Testing - For home projectors, attention is paid to power consumption, environmental noise such as noise and temperature. Power test The 240 W bulb can be used for 15000 hours in the SuperEco energy-saving mode. The power of about 197.6W is the normal operating power for a long time. The power is similar to that of a large-screen LCD TV. 2. Noise test The static ambient noise in the test room is about 34.9 dB. When quiet in the dead of night, quiet mode is selected, and the ambient noise of work is about 43.2 dB. The ambient noise during normal operation is about 47.4dB. In the high altitude mode, the fan speed is increased and the operating ambient noise is about 53.0 dB. Experience experience and analysis Relative to home users, ambient noise is no more than about 60.0dB, which is a qualified product. As a consumer-grade product, you must have good heat dissipation while taking into account the lower ambient noise. 3. Temperature test Projector right inlet Projector left outlet The bulb inside the projector generates a huge amount of heat. Air enters the projector from the left air inlet, taking away a lot of heat from the bulb. Finally, the hot air is discharged from the right outlet. Due to the large ventilation and heat dissipation effect and the use of a pure glass lens near the light source, it is not prone to thermal defocusing. - Insufficiency in experience - The remote control of the backlight in daily use, the frequency will be very high, blue backlight design style, it is easy to control each function button of the remote control. The pure English font of the remote control shows that the product is not only sold in China but also exported overseas. Compared to users who do not recognize English, they need to learn about it briefly. Although they do not affect the use of results, they reduce the sense of comfort. The multi-function keys of the operation panel will also be used at a high frequency, and the LED lamp+music operation design will be increased to avoid the probability of wrong presses during the use of the keys. —— Experience feelings and suggestions - Comment: The ViewSonic PX727-4K projector uses a Texas Instruments 0.47-inch UHD chip with 4K UHD (3840X2160) resolution to provide consumers with a 4K home theater experience. The 21st World Cup was held in Russia from June 14th to July 15th, 2018. ViewSonic PX727-4K projector allows you to enjoy the 2.35:1 cinematic effect without leaving home, experience the football feast of the 2018 Russia World Cup, and feel the shock of the large projection screen. Think it is exciting! like: 1. The RGBRGB six-segment color wheel makes the projected image smooth and natural. 2. Using the Oscar-winning TI DLP DMD, the 4K picture is clear and natural in color. 3. The projector has an average lamp life of up to 15,000 hours in the SuperEco energy-saving mode. 4. Color Enhancement color enhancement technology, can optimize the level of performance, showing more rich colors. 5. Skin Tone skin tone adjustment, can adjust skin color performance according to different projection scenarios, enhance skin color to be more natural and real. 6. 2200lm brightness and support HDR projection display function, can automatically adjust the brightness between areas, enhance the bright projection screen. 7. With 10W speakers, to ensure daily use, the audio interface behind the fuselage, you can connect professional speakers to meet the needs of speakers enthusiasts. Suggest: 1. The design of WiFi and smart operating systems makes the experience more diversified. 2. Focus ring and zoom lever, manual focus adjustment is not supported for auto focus. 3. The design of the lens automatic switch protection cover is very necessary, which can effectively prevent dust from entering and facilitate routine maintenance. 4. Support vertical trapezoidal correction, does not support left and right trapezoidal correction, can not meet the needs of the use of side projection. Disposable Vape Bar Pen,Disposable Vape Bar Pen E-Cigarette,Puff Bar Plus E Cigarette,Puff Bar Xtra E Cigarette KENNEDE ELECTRONICS MFG CO.,LTD. , https://www.axavape.com
16:9 aspect ratio 
2.35:1 aspect ratio 
16:9/1080p - Apple iPhone 7 Plus 
16:9/4K - ViewSonic PX727-4K Home Projector 
2.35: 1/4K - ViewSonic PX727-4K Home Projector 
2018 World Cup in Russia