Logitech camera (a well-known trademark in China, the world's leading manufacturer of computer peripherals)
2 ANC Aoni (comprehensive large IT group company, well-known camera brand)
3 colorful colorful cameras (a brand of colorful Hong Kong Group, an influential brand of computer peripherals)
4 Samsung PLEOMAX camera (a brand of Samsung Group, a Fortune 500 company)
5 TEPCO TECLAST camera (TEPCO technology is a world-renowned IT information enterprise brand)
6-speed camera (one of the earliest professional manufacturers to enter the camera field in China)
7 lenovo Lenovo camera (China well-known trademark, China's world brand)
8. Purple camera (national key high-tech brand-name enterprise)
9 Blue Devil Camera (internationally renowned IT digital product brand)
10 Tian Min 10moons camera (a well-known brand in the field of computer audio and video)
Question 2: What kind of camera does the anchor use? Nowadays, many anchors have to buy a camera before starting the live broadcast, but when Taobao searches, there are so many kinds, some are cheap and some are expensive. Which is better? As the saying goes, if you want to do a good job, you must sharpen your tools first. The purchase of the anchor camera is also very important. Why? It's simple. The effect of a good camera in the live broadcast room is very helpful to your popularity. Generally speaking, we will advise the anchor to buy high-definition cameras instead of infrared ones. The recommended brands are Logitech C920 or have to love C920. Of course, at present, I still have to love a 6.
Plus, the prices of these brands are slightly higher, but if you find a good platform, the money invested in these devices will soon be earned back.
The anchor's camera largely determines the popularity of the anchor. Originally, a girl as beautiful as flowers and pure as jade in reality, the lens is really average, and the live broadcast effect may be greatly reduced. The so-called work must first sharpen its tools, and how to adjust the live camera of the anchor. In a few days, let's see how to better adjust the effect of the anchor's camera and highlight the elegance of the anchor.
Choice of camera brand
Generally speaking, there are two options, infrared camera and high-definition camera. Let's take a look at those anchors with very good video effects, whether they use infrared cameras or high-definition cameras, the effect is very good. We recommend two brands, I love C920 and Logitech C920. Park Jialin, the YY Korean BJ anchor, uses Logitech's HD camera for live broadcast, and most domestic platforms use infrared cameras more. At present, it is basically mandatory to use a slightly higher video live room.
Adjustment of lighting effect
After the camera is selected, the next step is to adjust the lighting effect of the live broadcast environment. A desk lamp is recommended. When you broadcast live at night, turn on the ceiling lamp in the room, and the light must be bright. The function of the desk lamp is to fill the light, one on the left and one on the right. It is suggested that light can cover the whole body.
Camera placement angle
Generally speaking, the camera is placed directly above the live broadcast position and slightly tilted downward, as shown in the figure below.
In the above picture, the camera of the anchor is placed slightly downward, so that the image of the anchor is more stereoscopic, and the impression given to the tourists behind is wow, the body is visible, and the debugging of the anchor camera is an important link, because it directly affects your face value.
Question 3: What kind of camera is good! ? Get out of the misunderstanding of buying: buy a camera to find a bad lens. No matter how beautiful your face is, you can't see anyone comparing the lens to the soul of a camera. Although this metaphor is inevitably exaggerated, the importance of the lens to the camera is indeed an indisputable fact. On the surface, the resolution of CCD or CMOS sensor of camera is limited, and the optical resolution of lens is not too high. However, the photosensitive area of CCD or CMOS photosensitive element is very small, which puts forward higher requirements for the resolution of lens. If the resolution of the lens is poor, even if the camera can realize the value of one million pixels by hardware, its imaging quality is probably only the level of a 300,000-pixel camera. Accordingly, the two cameras using the same type of photosensitive element and DSP chip, who uses the better lens, will have better imaging quality. At present, the lenses of mainstream cameras on the market are mostly composed of multiple lenses, and there are three main types according to materials: 1. All-glass lenses, all made of glass lenses, are mostly four-layer (4G) or five-layer (5G) structures; 2. All-plastic lenses composed entirely of plastic lenses are generally two-layer (2P) structures; 3. Glass lenses and plastic lenses are mostly the combination of two layers of glass lenses and two layers of plastic lenses (2P2G). Theoretically, an all-glass lens can get a clearer image than an all-plastic lens. This is because when light passes through ordinary glass lenses, the light loss is usually only 5% ~ 9%, while the light loss of plastic lenses is as high as 1 1% ~ 20%, which darkens the picture and increases the noise. Some lenses also adopt multilayer optical coating technology, which effectively reduces the refraction of light and filters clutter, improves the light transmittance, and thus obtains clearer images. At present, all-glass lens is often used in some high-end cameras, but rarely used in low-end cameras. Although its optical performance is better, it is more expensive. The biggest advantage of all-plastic lens is its low price, which is widely used by low-grade cameras with low price as the main appeal. The performance and cost of FRP hybrid lens are between all-glass lens and all-plastic lens. Because of its high cost performance, it is widely used in middle and high-end cameras. Experts teach you to choose a lens. When choosing a camera, although it is difficult for us to identify the layers of the lens and the material of the lens by naked eye observation or disassembly, we can help identify it by the material of the lens shell. Usually, the shell of five-layer all-glass lens is mostly made of metal, while two-layer all-glass lens and four-layer glass-plastic mixed lens are mostly made of plastic. The discrimination method of all-plastic lenses is also very simple. If you tap the lens gently with your fingers, if there is a dull "bang" sound, nine times out of ten it is a full plastic lens (the surface layer of FRP mixed lens is usually a glass lens); If it is a glass lens, it will make a crisp "Tintin" sound. At the same time, the camera with all-glass lens and the camera to be purchased can be used in dark environment at the same time. If the imaging quality of the latter is much worse than that of the former, and it has obvious characteristics such as uneven light sensitivity and more noise, then it is likely that an all-plastic lens is used. You can even scrape the surface of the lens with your nails. Plastic lenses are easy to leave scratches, while glass lenses are mostly intact. But be sure to think clearly before you start, it is likely that the lens will be seriously damaged. Sometimes merchants will tell the camera that coating technology is used, which is easy to distinguish. We can observe from the side of the lens. If the coating technology is really used, most of the surfaces will appear blue-purple, blue-green or red. Some people think that coated lenses must be all-glass lenses, but they are not necessarily. In fact, the surface of plastic lenses can also be coated. However, the coating technology requires high requirements and high cost, and this technology is rarely used in all-plastic lenses with low price as the main appeal. Therefore, when you buy, you can also distinguish all-plastic lenses according to whether the lens surface is coated or not.
Question 4: What surveillance camera is better? At present, there are four kinds of cameras: analog, parallel digital, firewire camera and CameraLink high-speed camera; The image acquisition card also corresponds to it. Better image acquisition cards, such as NI's, are used in more important occasions (such as treasury) with good quality; The purpose of high-speed streaming disk is to solve the storage problem of high-quality images (at present, the actual speed of good high-speed streaming disk in China can reach 100M/s). The camera I use abroad is better, but there are many relative problems in China. Parameter simulation is resolution, but digital cameras have no such parameter as resolution, only the bandwidth limitation of capturing. A set of ordinary hardware system (high-speed streaming disk temporarily replaced by SATA hard disk) is generally within 65,438+00,000, and if you add good software, it will cost 30,000. The price of a good system can exceed1million dollars. The so-called picture quality clarity of the display is different from the principle of the camera lens. In addition to the maximum number of lines (that is, resolution), the imaging quality of the display is also related to the maximum apparent contrast. I suggest you visit the Shenzhen Safety Net (cedm), where most of your questions can be answered satisfactorily. Repost an article as follows:-Guide to camera lens selection. In the TV monitoring system, it is very important to choose the camera lens correctly according to the monitored environment, because it directly affects whether the effect of the monitored surface drawn on the monitor at the end of the system can meet the design requirements of the system. Camera lens can be divided into manual aperture lens and automatic aperture lens according to aperture, and fixed focus lens and zoom lens according to focal length. The following describes how to choose the appropriate camera lens according to the different use environment. 1 Selection of manual and automatic aperture lenses The selection of manual and automatic aperture lenses depends on whether the illumination of the use environment is constant. In the case of constant ambient illumination, such as in elevator cars, closed corridors and rooms without direct sunlight, manual aperture lens can be selected, so that the aperture size of the lens can be adjusted at one time according to the actual illumination of the environment during the initial installation and debugging of the system to obtain a satisfactory brightness picture. It is suitable for occasions with changing ambient lighting, such as halls, windows and halls. In places where the illumination changes greatly with the sunshine time, an automatic aperture lens (a camera with an automatic aperture lens socket) is needed, so that the brightness of the picture can be automatically adjusted and a good monitoring picture with constant brightness can be obtained. The control signal of automatic aperture lens can be divided into DC and video control, namely DC voltage control and video signal control. In the selection of auto-stop lens type, the connection mode of camera auto-stop lens socket and the selection of auto-stop lens driving mode switch, the three should be coordinated well. 2. Selection of fixed focus and zoom lens The selection of fixed focus and zoom lens depends on the size of the monitoring scene range and the required clarity of the monitoring scene picture. When the lens specifications (generally divided into1/3 ",1/2" and 2/3 ",etc. ) are fixed, and the relationship between lens focal length and lens field of view angle is that the longer the lens focal length, the smaller the lens field of view angle (as shown in figure 1). When the focal length of the lens is fixed, the relationship between the lens specification and the lens field of view is that the larger the lens specification, the larger the lens field of view. Therefore, it can be seen from the above relationship: under the condition that the lens object distance is constant, with the increase of the lens focal length, the picture range of the monitoring scene seen on the monitor at the end of the system is smaller, but the picture details are clearer and clearer; With the increase of lens specifications, the picture range of the monitoring scene seen on the monitor at the end of the system increases, but its picture details become more and more blurred. On the premise of certain lens specifications and lens focal length, the field of view angle of CS interface lens will be larger than that of C interface lens. The field of view of the lens can be divided into the horizontal field of view of the image. & gt
Question 5: What brand of camera is the best? What is the best camera? I think the real pixel of 1)S is 640X480, which is 300,000 yuan, and the TV image is at this resolution. Who says TV is not clear? The key is high imaging quality. Most of the 5 million pixels and10 million pixels are planted. It's bragging. A digital camera that takes 3 million photos can easily destroy a10 million pixel camera. 2) A. A large lens, that is, a large aperture, can also be lit by candles. Large lens and high quality lens are difficult to make, and the cost performance is poor. B. The lens is relatively small, which is better when it is bright, but not when it is dark (Logitech is like this). Because the lens is relatively small, it is easy to manufacture high-quality lenses with good cost performance. C. the lens crosses (if it looks purple, etc. ), which enhances the light passing through the lens and reduces the refraction influence. D. Drive-free 3) Take photos to see the effect of light and dark environment (clear and colorless, this is very important. Now the camera chip is more homogeneous, and the lens and appearance are different. Everyone likes appearance. The lens head is the key to the choice, whether it looks good or not. Sometimes there are good things in shanzhai, and the price is low.
Question 6: What brand of camera is the best? There are only two kinds of pixels in the camera, one is 65438+ million, and the other is 300,000. That is to say, up to 300 thousand. Why are there no higher pixels? Because the camera wants to improve the pixels, the resolution is generally improved by digital interpolation, which is tantamount to fraud and does not improve the definition and image quality. This is called interpolated pixels. On the other hand, if we want to improve the image quality and resolution, the amount of data will increase geometrically, not only the data transmission speed of USB protocol can't keep up, but also the network data transmission can't keep up. At present, the conditions can not meet such a huge data transmission speed, and online video chat will become very intermittent, unable to express continuous action, and has no practical significance. If you don't believe that you watch video with a digital camera instead of a camera, the effect will be terrible, so the camera pixel is 300 thousand.
Some consumers will say that there are not many cameras with 350,000, 480,000, 680,000, 800,000 and 1.3 million pixels on the market. We want to tell you that this is the century lie of China's camera pixels.
Image resolution/resolution:
●SXGA( 1280x 1024) is also called 1.3 million pixels.
XGA (1024x768) is also called 800,000 pixels.
●SVGA(800x600) is also called 500,000 pixels.
●VGA(640x480) is also called 300,000 pixels (350,000 refers to 648X488).
●CIF is also called 65438+ megapixels.
Now it is clear to everyone, why can't we produce a camera with 1.3 million pixels? I think any camera manufacturer in China, including us, has the strength to make it. Why didn't we earn 1.3 million? This is the reason mentioned in the first paragraph above.
Misunderstanding of CMOS and CCD
There are two kinds of photosensitive elements in the camera: CCD and CMOS. CCD imaging has high pixels, high definition and high color reproduction coefficient, but the price is more than half of S; CMOS is low in price, low in power consumption and fast in response, but the difference between them is actually very small. In the products using CMOS as photosensitive element, advanced image control technologies such as automatic gain enhancement technology of image light source, automatic brightness and white balance control technology, color saturation, contrast, edge enhancement and gamma correction can achieve the same effect as CCD camera. In addition, the pixel of the camera itself is relatively low, so the difference between CCD and CMOS hardly exists, which is influenced by other factors of the camera.
About the camera scheme
There is nothing to say about the 65438+ megapixel scheme, which is generally more than Lingyang 56 1. Mainly talk about the 300,000-pixel camera scheme.
The 300,000-pixel camera scheme consists of a main chip and a photosensitive chip, of which the main chip is China Zhongxing Micro's 301L (the replacement of 301P is now discontinued), and the other main chips are Songhan 102.
Among them, 30 10L can be matched with Hyundai 7 13 1E, Hyundai 7 13 1R and Micron 360. Among them, 7 13 1E has been discontinued for a long time, and the market has disappeared. Now who dares to say that they use 7 13 1E? There must be something wrong. Now there are only two better solutions:
30 1L+ Meguiar's 360: This scheme is the best on the market. However, because domestic Micron's 360 chips are full of B-class products, you can't see the storm of price reduction in the camera market one after another. The culprit is that a large number of merchants have hit the market with cheap B-class Meguiar's 360 chips. In fact, the price of Micron 360A chip has remained relatively stable. Our company has always insisted on importing original A-class Meguiar's 360 chips from Hong Kong to ensure the interests of consumers. Because of this, some well-known camera brands at home and abroad put their production in our company. For example, SUNTEC, a well-known camera brand in new york, USA, whose camera sales are second only to Logitech's, finally decided to manufacture all series of cameras by our company.
30 1L+ Hyundai 7 13 1R: Hyundai 7 13 1R is a substitute for Hyundai 7 13 1E, but the effect ratio is 71e. Originally, because its price is much cheaper than Meguiar's 360, there are more users. Later, Meguiar's 360B film flooded the market, and the price advantage of 7 13 1R was completely lost. Nowadays, fewer and fewer people adopt this scheme.
To sum up, most products on the market now are 30 1L+ US...> & gt
Question 7: What brand of computer camera is good? There are many good brands of computer cameras at present. If the landlord chooses to buy, it is best to choose those well-known brands, such as Anconi, Blue Witch, Logitech, Jisu and Tian Liang. The top ten camera brands bought online are all good. You can compare them before you buy them.
Question 8: What kind of surveillance camera is better to install at home? There are important things at home, so it's better to install a camera. There are days all around our house, which is not bad, and we can see clearly.
Question 9: Take photos with a camera. What brand is good? I bought a Logitech camera before, which is very easy to use. It's a pity that I don't have 500W w. Who borrowed it? It's gone now!
I have compared the top ten camera brands in China-10, and found that the cameras of these famous brands, such as OneLogitech, Blue Demon and TECLAST, are quite good. I'm going to buy another one, so choose one of these brands! The specific model will be known when you see it!
Question 10: Which brand of HD surveillance camera is good? Hikvision, Dahua, Sony, Samsung, Honeywell, Panasonic and Philips can all do it!