How do I set the default camera back on my phone? I accidentally set the beauty camera as the default camera.

One: Open the settings function on your phone. Then find application management.

Two: Click in and select change.

A camera is a device that uses optical imaging principles to form images and uses film to record the images. It is an optical instrument used for photography. In modern social life, there are many devices that can record images, and they all have the characteristics of cameras, such as medical imaging equipment, astronomical observation equipment, etc.

After the light reflected from the scene being photographed is focused through the photographic lens (objective lens) and the shutter that controls the exposure, the scene being photographed forms a latent image on the photosensitive material in the camera obscura, which is processed after processing (i.e. Development, fixation) to form a permanent image. This technology is called photography, which is divided into general photography and professional photography.

Extended information:

When buying a camera, you should mainly look for the "six elements", which are: purpose, price, pixels, economy, appearance and function, and brand. Let's take a look at the following: The editor will explain it one by one for everyone.

1. Purpose: According to the performance characteristics of different products, digital cameras can be divided into household, quasi-professional, and professional cameras. The editor feels that for mass users, we have not learned professional photography knowledge. If you are not an experienced photography enthusiast, cameras are usually used for daily shooting, so you don’t need to choose so-called high-end products. A compact camera is enough.

2. Price: In terms of price, the editor recommends that home DC cameras not cost more than 2,000 yuan. For cost-effective reasons, DC cameras above 2,000 yuan may overflow in terms of performance. And for ordinary working-class families, the price of less than 2,000 yuan is relatively easy to accept. After all, the role of digital cameras in the family is still very single. It's nothing more than taking commemorative photos when traveling, taking family photos during family gatherings, etc. There are definitely no people who take DCs to take pictures of flowers, grass, blue sky and white clouds on the street every day. Therefore, economical and practical is the main purpose of home cameras.

3. Brand: After determining the budget, you can consider which brand to buy. As for brands, Canon, Nikon, and Sony are the three giants in the camera market, with the highest market share, but this This does not mean that other brands are not good. Olympus, Panasonic, Casio and other brands are also very popular in the compact camera market. In fact, any brand may have its own top-notch products as well as its failures. When buying a camera, you still have to look at what suits you best.

In terms of brands, the domestic market is mainly dominated by China, Japan, the United States, and South Korea. Domestic (Lenovo, BenQ, Pateli, Zhongheng, etc.), Japanese (Canon, Nikon, Sony, etc.) , Olympus, Ricoh, etc.), American (Kodak), Korean (Samsung). Sometimes, based on brand awareness and market share, they are divided into first-tier (Canon, Nikon, Sony), second-tier (Olympus, Fuji, Panasonic, Casio, Ricoh, Kodak, Samsung, etc.) and third-tier brands. The editor believes that the brand is more important when choosing a camera. After all, it not only involves product quality, but also a series of after-sales services, so big brands are always more reliable.

4. Pixels: Many friends who don’t know much about cameras often care most about how many pixels they have when buying a camera, and many businesses often take advantage of consumers’ pursuit of high pixels. Although it is promoted vigorously, in fact, for ordinary household needs, too high pixels do not have much practical significance. Generally speaking, 3 million pixels can develop 6-inch photos, and 4 million pixels can easily output A4 format photos. Therefore, the concept of pixels is only the range that can be developed and the processing capacity. It does not mean that the higher the pixels, the better good.

Some digital camera manufacturers put extremely high pixels on small CCDs. It sounds like the pixels are very high, but in fact the image quality is not as good as that of ordinary 2 million or even 1 million pixel cameras. . Nowadays, with the reduction of camera costs, digital cameras costing more than 1,000 yuan can basically have more than 10 million pixels, which is enough to meet the needs of users.

5. Economy: To put it bluntly, the so-called economy means saving money. So in what aspects can digital cameras save money? Naturally, they are accessories, mainly batteries and memory cards. Compact cameras generally use large-size LCD screens for viewing. Electronic viewfinders naturally consume much more power than optical viewfinders. Most compact cameras on the market use lithium batteries. Basically, cameras using AA batteries are no longer found. Generally, a lithium battery can take about 200 photos. Memory cards can be divided into XD cards, memory sticks, SD cards, MMC cards, CF cards, SM cards, etc. Different models of cameras require different types of memory cards. For example, Sony cameras generally need to be equipped with memory sticks, Olympus generally need to be equipped with XD cards, Canon generally need to be equipped with CF cards, and most cameras are equipped with SD cards, etc. Among them, XD card and memory stick are the two more expensive memory cards, while SD card is becoming today's mainstream storage media due to its high speed and low price.

6. Appearance and function: The editor decided to put appearance last because it depends entirely on personal preference. Female users often prefer smaller and brighter colors, such as Canon IXUS series and Nikon S series. Generally, male users prefer thicker ones.

In terms of functions, it generally refers to whether there is manual control, the number of optional modes, dynamic image format and whether it is time-limited, recording and MP3 and other functions. What should be taken seriously here is whether to use the manual function. The operation of the manual function requires certain skills and knowledge. If used properly, you will definitely be able to take better pictures than a camera without manual functions. However, home cameras provide a wealth of optional modes, and there is no need to force manual operation.

Reference materials:

Baidu Encyclopedia--Camera