How to sell cameras more comfortably?

it's wrong of you not to get extra points after reading it ~ ~ ~ ~ ~ I think it's the most important thing to understand the psychology of customers. Principle 1. The technologically advanced products to be promoted are hard-index digital cameras, which are electronic and optical components integrating cameras and video capture units. At present, there are basically two kinds of cameras on the market: one is a digital camera used to connect with a computer, which can directly capture images and then transmit them to the computer through serial, parallel or USB interfaces. The other is analog camera, which should be used together with video capture card; Analog camera can convert the analog video signal generated by video acquisition equipment into digital signal, and then store it in computer. The video signal captured by the analog camera must be converted into digital mode by a special video capture card and compressed before it can be converted to the computer for use. Because the digital camera can be directly connected to the computer, from the convenience of connection, you'd better choose a camera with plug-and-play function. Of course, if you already have a video capture card, you can also consider choosing an analog camera. In order to connect with the computer conveniently, there is a connecting cable behind the digital camera now. Through this cable, the digital camera can be connected to the computer by interface card, parallel port and USB port. If you add a set of software that can shoot images instantly, you can realize live broadcast on the Internet. However, when you choose the interface mode, you don't just choose one. You must choose it according to the purpose of using the camera. Usually, the camera with interface card is realized by the camera special card, and manufacturers will optimize or add video capture function for the camera, which has great advantages in image quality and video stream capture. However, due to the different design of interface cards from different manufacturers, the products can not be universal, and the price is not cheap, so this kind of products is worthy of users who need to pursue higher image quality. At present, most camera interfaces on the market use USB interface, because this interface product has always been accepted by everyone because of its plug and play and convenient use, and it can also save external power supply. However, the transmission speed of USB interface is still not high, so if you want to use the camera to get higher quality images and faster transmission speed, manufacturers still need to make great efforts in technology to solve it. Another connection mode is parallel port mode. The biggest advantage of this connection mode lies in its high universality, because basically every computer has a parallel port, but the data transmission rate is slow and the practicality is greatly reduced, but it is still acceptable for ordinary users. If you want the camera to capture high-quality and high-definition pictures, you should focus on checking the lens components of the camera when choosing a camera, because the quality of the lens is the key factor affecting the image quality. Our general principle of buying lenses is that the lenses made by more famous manufacturing companies are better. In addition, because the imaging area of cameras is related to the area of CCD or CMOS elements, and the areas of CCD or CMOS elements of different cameras are not equal, the imaging areas are different. And CCD elements are divided into two types: plane CCD type and scanning linear CCD type. The photosensitive area of CCD chip of area CCD camera is a rectangular array plane, and the usual ratio of length to width is about 3: 2, which has the advantage of fast capture speed. There are no special requirements for shooting moving scenes and having ordinary flashlights. Common sizes are 1/ inch, 1/4 inch, 1/3 inch, 1/2 inch, 18.4x27.6mm, 6.4x2.5mm, 9.2x13.8mm and so on. The CCD chip used in the scanning linear CCD camera is long and narrow, that is, the tiny units sensitive to light are evenly arranged in a row, instead of being evenly arranged in several columns to form a rectangular plane as in the area array CCD. The resolution of the camera with linear CCD is extremely high, but because of the scanning process, the higher the resolution, the longer the processing time is needed. When you choose, you should usually use the area CCD digital camera, and the scanning linear CCD digital camera can only be used for still life shooting. Compared with CCD elements, CMOS elements are cheaper than CCD elements under the same pixel, but the image quality produced by CMOS photosensitive devices is lower, and such elements are usually used in analog cameras. Principle 2: Powerful product function is the goal of a good digital camera. Besides excellent technical indicators, it must also have strong use functions and control and management functions. Usually have a high-resolution camera, which has a strong ability to analyze images, so whether the camera is powerful or not will also be reflected in the resolution of the camera. Generally speaking, the resolution of the camera directly determines the size of the captured image that can be printed with high quality, or the size of the picture that can be displayed on the computer monitor. The resolution is the primary issue to be considered after the hardware index of the digital camera is determined when purchasing the digital camera. The resolution of digital camera depends on the number of pixels on the CCD or CMOS chip in the camera. The more pixels, the higher the resolution. As far as similar digital cameras are concerned, the higher the resolution, the higher the camera grade. However, the data files generated by high-resolution cameras are very large, which requires high speed of computers, capacity of memory and hard disk, and corresponding software. Obviously, the larger the size of digital photos to be printed, the higher the pixel level of digital cameras is needed. At present, the resolution of mainstream products is designed according to 3, pixels, which supports the maximum resolution of 64×48. At this resolution, the speed of 15 frames can be provided, and the picture is obviously paused and somewhat blurred. When the resolution is reduced to 352x288 (1, pixels), the camera can usually provide 3 frames, so that you can see a very smooth picture, and at this resolution, the picture becomes very clear. In addition to supporting the resolutions of 64×48 and 352x288, the camera can now support the ability to capture images at various resolutions such as 16x12, 176x144, 32x24 and 74x576. Perhaps the biggest factor affecting the image quality is the video capture ability of the camera. At present, the maximum resolution of the picture captured by the digital camera is 74x576. So far, no digital camera can achieve the capture effect of 3 frames per second under this resolution, so the picture will jump. Although many manufacturers boast that their cameras can capture 3 frames per second at the highest resolution when promoting their products; At this time, you should pay attention to it. You can't easily believe the cheating tricks of profiteers. What you can do is to compare the capture ability of which camera can be achieved by combining hardware and software at the same resolution. Of course, you can't blindly pursue video capture ability, because the higher the video capture ability, the higher the requirements it puts on the computer. For example, the video capture ability of 3 frames per second requires that the processing power of the CPU is fast enough, the memory capacity is large enough, and the installed operating system software is at least windows98；; If your computer doesn't meet the requirements, it won't help even if the video capture ability of the selected camera is high. The color of the camera and the ability to adjust the light source are also very important for the efficient work of the camera. Especially the backlight compensation and white balance adjustment functions, because these functions are well controlled, the video picture can be played harmoniously and naturally. The function of white balance adjustment is similar to that of adding color temperature conversion filter in color photography. The purpose is to get accurate color reproduction, but the white balance control does not need to add a color filter in front of the lens, and adopts a circuit control mode, which is divided into two types: automatic adjustment and manual adjustment. You can choose the appropriate control mode according to the different use environment and requirements. In addition, the quality and function of bundled software are also important factors to consider when purchasing digital cameras. Because the realization of camera function is inseparable from the support of software, most cameras have a special control program to realize the most basic functions such as taking pictures, shooting, managing image files, setting and so on, thus serving as a tool for users to directly control and use cameras. Now, most manufacturers' products will be equipped with such software as video conference, video chat, video recording, photo editing and anti-theft detection. Some of these softwares are often aimed at beginners. For example, photo editing software will have a large number of templates and creative tools, and even users who are new to graphic editing can use their imagination to post-process photos. Video communication software can guide users to carry out video E-mail, video phone and other applications; Through these bundled software, users can get more application schemes. Because the ease of use of the software directly determines the user's actual use experience, everyone must check and compare the functions of the software that comes with it. Principle 3: Brand and service should be paid attention to. Besides the camera technology and functions mentioned above, everyone should also pay attention to some external factors when purchasing, such as product design, cost performance, brand and after-sales service. In fact, because the technical content of making cameras is not high, it is difficult to distinguish the cameras of various brands from each other by comparing their internal performance. Therefore, these external factors mentioned above often become the main consideration when people buy them. For example, the appearance of a product is an important factor that affects people's choice. As a new video device, the user base of the camera is mainly those computer upstarts who are pursuing fashion. Therefore, there is no reason not to choose a camera with beautiful appearance or fashion when the performance is comparable. In addition, we must also consider the following factors: 1. The company image and reputation of the manufacturer. Mainly to make a more comprehensive understanding of the manufacturer's advertising, service commitment and word of mouth; 2. Whether the marketing service system of the manufacturer is perfect. Understand whether its sales and service distribution outlets are sound, and don't go to Shanghai to solve the problems of products in Chongqing. 3. Understand the situation of other products operated by the manufacturer. This will be a good reference for you to choose a digital camera. Principle 4. Be Sufficient-oriented. The purpose of people's shopping mainly lies in application, and it is based on the principle of sufficiency. The same is true when you choose a digital camera. Each product has its own unique application field. Some merchants use the characteristics of their hardware devices to add a lot of software with application value on the basis of shooting and capturing images, such as image email software, audio-visual chat software and simple video editing software. With various software, you can use the email function when shooting scenes, and you can make various simple edits to the shot pictures, as well as video chat and other functions. When you choose, you should be clear about the purpose of your purchase, so as to guide consumption by application, which is cheap and good, and can fully meet the needs. In addition, when you buy a camera, you should first choose a brand according to the requirements of use and whether the funds are sufficient, and then compare the price under the same brand. The performance with high price may be better than that with low price. But the price brand is only a subjective feeling, and to really choose a good digital camera, we should carefully choose a good focal length combination. Finally, I want to remind you that the camera you choose must cooperate with your own computer system to form a complete shooting system. In the same system, the quality indexes of all kinds of equipment must be consistent with each other. If the equipment with inconsistent indexes is selected, the final result will only reach the lowest index, so the funds spent by the equipment with high indexes will be wasted.