How to judge the quality of SLR camera

In addition to the appearance, one is to see whether the viewfinder is gray (which is very unlikely), and the other is to see whether the sensor is clean. The method is to take photos with F22 aperture in A mode and watch photos on the computer. If there is no small stain on the blue sky, the sensor is clean. The sensor of the new machine must be clean and stained, that is, the camera is kept or used carelessly;

2. Check the number of shutters

This is very important. Check the shutter dozens of times to see if the camera is old or new. Canon camera must use Canon EOSMSG software, Canon official website can download it for free, and Baidu can also find the download link.

3, check the sensor bad point

Take a photo casually and watch it with video software such as the magic hand of light and shadow. One of the imaging software is bad point detection, 0 bad point is excellent, less than 10 is normal, and more than 10 is repaired or returned;

4. Check the highlight of the LCD screen.

Take a piece of pure white paper, cover the lens, then watch the picture with the camera LCD screen, and use the camera zoom button to maximize the picture. Black dots in a white picture or white dots in a black picture are the highlights of the LCD screen. 0 excellent, less than 3 normal, more than 4 returned or repaired.

Extended data

For beginners, only three factors need to be considered.

First, the price.

If you want to buy a camera, first of all, you need to consider what the highest price you can accept. After all, the price of cameras now ranges from thousands to tens of thousands of yuan, and the price span is very large. You still need to consider this before you can recommend a camera at the corresponding price.

Second, the purpose.

Cameras have different uses. Some people buy a camera to learn photography, some to record the moments of life, and some to save face ... In short, the use will determine the degree to which you use the camera. If you buy an expensive camera but haven't used it several times, it's a bit of a loss.

So when you decide to buy a camera, you must think clearly about what you are thinking before you choose to buy it.

The third point is the type.

At present, the mainstream camera types are divided into SLR, micro-camera and portable camera. These three camera types are different in size and operation, so the camera experience is different. If you pursue manipulation and focus on photography, it is best to choose SLR; If you prefer fashionable appearance and clear picture quality, it is recommended to choose micro-single; If you like to record your life with you, then choose to buy a portable camera.