I'm an idolist and an academic scholar, leftsky. I haven't called this slogan for a long time.
ForewordThe micro-projection of this product has been on the market in recent years, but the brand is better, but also the nuts (the nut has a hammer relationship with the hammer's nut phone) and the pole meter, these two are considered micro. The investment has been carried forward and the price has been reduced. Let me wait for a large group of people who are eager to see the big screen at any time, such as Aoi Sakai, Ozawa Maria, Hatano Yui, Okita Apricot and other teachers who perform professionally. The tool that weighs the hand, today's evaluation, is a micro-casting Z4air with a built-in battery launched at the end of last year.
Xiao Bian insisted I add a proof of purchase, this machine is to spend 1500 from the hands of users to buy second-hand goods, only a 1500 yuan Alipay transfer records, why buy? Public opinion king does not give me the test, who bought it? A well-known netizen with big names, where did he come from? I knew he didn't pay for it.
The 1500 in the middle is him. This guy sells a lot of things to me!
package
Since the launch of the macbook air, this year, any lighter-weight product is required to add an air at the back, and the polar meter is no exception. The Z4 is relative to the previous Z3. The air indicates ultra-thin, and the following line of small print is This very micro-investment of the very meters made quite tall --- pole meters without screen super TV
Polar meters is a company in Chengdu, the founder is said to be electronic science and technology department, electronic science and technology, reeling silk, for example, China's Internet spray army commander-in-chief Ding Lei!
In the packaging box design, a double box combination design, two boxes, a box-mounted host, a box assembly, two boxes plus a sleeve set together, the design is very good
productAccessories
Accessories box includes remote control, power supply, HDMI cable, etc.
Remote control, ultra-thin design, using CR2032 battery, button layout is similar to the layout of the millet box remote control.
The power output voltage of the pole is as high as 19.5V, the current is 2.3A, and the overall power is as high as 45W. It is basically equivalent to a notebook. The plug of the power supply adopts a demolition design to facilitate the adaption of socket types in different countries and regions.
Accessories family portrait, distribution of the HDIMI line uses a white flat wire design, good quality.
Hosts
There is a simple manual after the main box is opened
Silver host
The back of the fuselage interface includes two usb, one of usb3.0 interface, a hdmi interface, a headphone jack, a power connector, while there is a mono speaker on the back of the fuselage, the use of mono speakers, is based on battery life And light and thin design, if you want a better sound quality, it is recommended to use headphones or Bluetooth speakers.
The power indicator is on the edge of the speaker. At the same time, the light can also show the power. The red indicates that the power is insufficient, and the blue indicates that the power is sufficient.
The side is a heat vent and focus ring. Due to the ultra-thin design of the body, the lens does not have a zoom ring.
The front of the fuselage is still designed with a large area of ​​heat dissipation, the lens is designed in the side position, there is a sliding lens cover, the sliding lens cover can be directly turned on, it is quite convenient to use.
The bottom of the fuselage is very simple, without any hooks and bracket holes, if you need to mount or install the bracket, you need to buy another attachment.
Compared with BenQ's 1080st size, it's really dwarf to Yao Ming.
The whole machine is very good in weight, 666 grams. This weight is also a very light weight, making it more portable.
Due to the ultra-thin design of the body, we can place it anywhere, and the built-in battery guarantees full wireless playback.
use
The definition of a super-screenless TV highlighted by Kizemi is the built-in TV box function
The video resources of the built-in TV box feature come mainly from the mango station, but members need to purchase to see more videos.
The trapezoidal correction function is an essential function for each projector. However, due to its ultra-thin body, the Z4AIR optical trapezoidal correction is not possible. The built-in trapezoidal correction function is based on a certain algorithm to achieve the digital trapezoidal Correction.
The built-in automatic keystone correction is not perfect, we can set it manually to achieve the best viewing effect.
From this figure we can see the features of the digital trapezoidal correction. The fundamental principle is that the projected image is adjusted by the algorithm, so that visible light and shadow can be seen on the screen.
Because of the zoom ring, when we need to adjust the screen size in a fixed position, it can only be adjusted by the built-in digital zoom, it should be noted that digital zoom can only make the screen smaller, can not be enlarged.
This one is a zoomed image. From the arrows, it can be seen that the light and shadow are still clear. This is also a common problem in micro investment.
Connect wifi, virtual keyboard design is very clear, choose by remote control
Built-in Bluetooth support to connect Bluetooth speakers, high recognition rate
In terms of color, it is not a single adjustment of the contrast brightness. The addition of color temperature adjustment makes it easier for us to choose our favorite color.
Menu background interface can be customized
There are a variety of built-in video site apps, but there are still few free-to-play apps available, but Rami's compatibility with third-party software is still very good.
Only 1g of built-in storage of the meter, for the TV box, this size of memory can basically guarantee the smooth playback of the video.
Video play proofs
Free video resources always have advertisements during playback, and the time is not short. When you use the built-in power to play videos, it will definitely be crazy because of the ad's implantation.
In the past, this paragraph was a brief summary, but today this paragraph may be quite long. Some things are not represented by pictures, so more text is needed.
First of all, we talked about the display chip of the meter, 0.3 "DMD RGB-LED, this size is a very small size, the general projector is started at 0.55", so based on such a small DMD chip, the physical resolution output of the meter Only 720P. In the display light source, the LED lamp group is used. The LED lamp group has the advantages of high brightness, long life, and power saving. However, due to the volume control, the volume of the light source must also be controlled. The official nominal brightness is 250 ANSI lumens, This brightness is only one-eighth that of a normal home projector. Therefore, when a 100-inch large screen is placed, it is apparent that the brightness of the screen is not enough. Especially when using the built-in battery, the brightness is automatically attenuated again. Therefore, students who want to use this projector as a commercial projector can stop. In the daytime environment, the projected images cannot be viewed directly. In a dark room at night, the brightness is barely acceptable. However, Z4AIR is a projector with 3D function, and comes with a shutter-type 3D glasses, so when watching 3D movies, the brightness will be lost again. If it is the first time it touches the projector, it will I feel this brightness is okay, but if you have used other higher-brightness projectors in the past, this brightness may be unacceptable.
In terms of built-in TV box functions, 1G of running memory and 16G of internal storage space are designed. This configuration is also the mainstream configuration of TV boxes on the market. It is barely enough, and the personal operating system is similar to the operating system. The combination of the millet box and the iQIYI box is not difficult to operate. It is easy to get started. The compatibility of the built-in operating system is better than that of other TV boxes. Several third-party video software can be installed and each can be installed. A variety of games, but games that can be played smoothly through the remote control and have high playability are still relatively few to develop.
The projection ratio of Z4air is 1.2:1, and the projected picture is 76 inches at a distance of 2 meters. The measured brightness of this size is barely acceptable. In fact, the projected 40-inch brightness is acceptable. Be considered an optimal projection distance, in the battery life, the use of built-in battery playback time is about 2 hours, just after watching a movie, the movie may be too long to be powerless. And originally the brightness of the viewing effect of the power supply is not good, and then use the built-in battery, and then looked at no electricity, hey, even worse.
As for Z4air's color reproduction ability, this is a joke. How do you say it? Well, this is a color projector, what status? It's like a fool card in the camera, not a black card at this level.
The price, I think I bought 1500 is quite good, with a work night shift is also good, 2499 is not worth
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